BS EN10216-2：2002 中文版 压力无缝钢管.交货技术条件.规定高温特性的非合金和合金钢管
EN 10216-2
EUROPEAN STANDARD NORME EUROP ÉENNE EUROP ÄISCHE NORMEN 10216-2May 2002+ A1March 2004ICS 23.040.10; 77.140.75English versionSeamless steel tubes for pressure purposes -Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specifiedelevated temperature properties (including amendment A1:2004)Tubes sans soudure en acier pour service sous pression - Conditions techniques de livraison - Partie 2: Tubes en acier non alli é et alli é avec caract éristiques sp écifi ées àtemp érature élev ée(·nclut l amendement A1:2004)Nahtlose Stahlrohre f ür Druckbeanspruchungen - Technische Lieferbedingungen - Teil 2: Rohre aus unlegierten und legierten St ählen mit festgelegtenEigenschaften bei erh öhten Temperaturen(enth ält Änderung A1:2004)This European Standard was approved by CEN on 25 April 2002; amendment A1 was approved by CEN on 2 January 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I T É E U RO P ÉE N D E N O R M A LI S A T I O N E UR O P ÄIS CH E S K O M I T E E F ÜR N O RM U N GManagement Centre: rue de Stassart, 36 B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members.Ref. No. EN 10216-2:2002 + A1:2004 EEN 10216-2:2002 (E)2ContentsForeword.....................................................................................................................................................................3 1 SCOPE............................................................................................................................................................4 2 NORMATIVE REFERENCES.........................................................................................................................4 3 TERMS AND DEFINITIONS...........................................................................................................................5 4 SYMBOLS.......................................................................................................................................................5 5 CLASSIFICATION AND DESIGNATION.......................................................................................................6 5.1 Classification.................................................................................................................................................6 5.2 Designation....................................................................................................................................................6 6 INFORMATION TO BE SUPPLIED BY THE PURCHASER..........................................................................6 6.1 Mandatory information .................................................................................................................................6 6.2 Options...........................................................................................................................................................7 6.3 Examples of an order....................................................................................................................................7 7 MANUFACTURING PROCESS......................................................................................................................8 7.1 Steel making process ...................................................................................................................................8 7.2 Deoxidation process.....................................................................................................................................8 7.3 Tube manufacture and delivery conditions................................................................................................8 8 REQUIREMENTS ...........................................................................................................................................8 8.1 General...........................................................................................................................................................8 8.2 Chemical composition..................................................................................................................................9 8.3 Mechanical properties ................................................................................................................................13 8.4 Appearance and internal soundness........................................................................................................18 8.5 Straightness.................................................................................................................................................18 8.6 Preparation of ends.....................................................................................................................................18 8.7 Dimensions, masses and tolerances........................................................................................................19 9 INSPECTION.................................................................................................................................................24 9.1 Types of inspection.....................................................................................................................................24 9.2 Inspection documents................................................................................................................................24 9.3 Summary of inspection and testing..........................................................................................................24 10 SAMPLING....................................................................................................................................................25 10.1 Frequency of tests ......................................................................................................................................25 10.2 Preparation of samples and test pieces ...................................................................................................26 11 TEST METHODS..........................................................................................................................................27 11.1 Chemical analysis.......................................................................................................................................27 11.2 Tensile test...................................................................................................................................................27 11.3 Flattening test..............................................................................................................................................28 11.4 Ring tensile test...........................................................................................................................................29 11.5 Drift expanding test.....................................................................................................................................29 11.6 Ring expanding test....................................................................................................................................30 11.7 Impact test....................................................................................................................................................30 11.8 Leak tightness test......................................................................................................................................31 11.9 Dimensional inspection..............................................................................................................................32 11.10 Visual examination......................................................................................................................................32 11.11 Non-destructive testing..............................................................................................................................32 11.12 Material identification .................................................................................................................................32 11.13 Retests, sorting and reprocessing............................................................................................................32 12 MARKING .....................................................................................................................................................33 12.1 Marking to be applied .................................................................................................................................33 12.2 Additional marking......................................................................................................................................33 13PROTECTION (33)Annex A (Informative) Creep rupture strength values........................................................................................34 Annex ZA (informative)............................................................................................................................................39 Bibliography (Informative).......................................................................................................................................40EN 10216-2:2002 (E)3ForewordThis document (EN 10216-2:2002) has been prepared by Technical Committee ECISS/TC 29, "Steel tubes and fittings for steel tubes", the secretariat of which is held by UNI.This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2002, and conflicting national standards shall be withdrawn at the latest by November 2002.This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. Other Parts of EN 10216 are:Part 1: Non-alloy steel tubes with specified room temperature properties. Part 3 : Alloy fine grain steel tubesPart 4 : Non-alloy and alloy steel tubes with specified low temperature properties Part 5 : Stainless steel tubesAnother European Standard series covering tubes for pressure purposes is: EN 10217:Welded steel tubes for pressure purposesAccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Foreword to amendment A1This document (EN 10216-2:2002/A1:2004) has been prepared by Technical Committee ECISS/TC 29 "Steel tubes and fittings for steel tubes", the secretariat of which is held by UNI.This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2004, and conflicting national standards shall be withdrawn at the latest by September 2004.This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 97/23/EC.For relationship with EU Directive 97/23/EC, see informative annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and UnitedKingdom.EN 10216-2:2002 (E)41 SCOPEThis Part of EN 10216 specifies the technical delivery conditions in two test categories for seamless tubes of circular cross section, with specified elevated temperature properties, made of non-alloy and alloy steel.NOTE This Part of EN 10216 may also be applied for tubes of non-circular cross section; necessary modification should be agreed a the time of enquiry and order.2 NORMATIVE REFERENCESThis European Standard incorporates by date or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For date references, subsequent amendments to or revisions of, any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).The requirements of this European Standard rule when they differ from those in the standards and documents referred to below:EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test (at ambient temperature). EN 10002-5, Metallic materials - Tensile testing - Part 5: Method of testing (at elevated temperature). EN 10020, Definitions and classification of grades of steel.EN 10021, General technical delivery requirements for steel and iron products. EN 10027-1, Designation systems for steels - Part 1 : Steel names, principle symbols.. EN 10027-2, Designation systems for steels - Part 2: Numerical systems. EN 10045-1, Metallic materials - Charpy impact test - Part 1: Test method. EN 10052, Vocabulary of heat treatment terms for ferrous products. EN 10204, Metallic products - Types of inspection documents.ENV 10220, Seamless and welded steel tubes - Dimensions and masses per unit length EN 10233, Metallic materials - Tubes - Flattening test. EN 10234, Metallic materials - Tubes - Drift expanding test. EN 10236, Metallic materials - Tubes - Ring expanding test. EN 10237, Metallic materials - Tubes - Ring tensile test.EN 10246-1, Non-Destructive Testing of steel tubes Part 1 : Automatic electromagnetic testing of seamless and welded (except submerged arc welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness. EN 10246-5,Non-Destructive Testing of steel tubes Part 5: Automatic full peripheral magnetic transducer/flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal imperfections.EN 10246-6, Non-Destructive Testing of steel tubes - Part 6: Automatic full peripheral ultrasonic testing of seamless steel tubes for the detection of transverse imperfections.EN 10216-2:2002 (E)5EN 10246-7, Non-Destructive Testing of steel tubes - Part 7 : Automatic full peripheral ultrasonic testing of seamless and welded (except submerged arc welded) steel tubes for the detection of longitudinal imperfections. EN 10246-14, Non-Destructive Testing of steel tubes - Part 14:Automatic ultrasonic testing of seamless and welded (except submerged arc welded) steel tubes for the detection of laminar imperfections.EN 10256, Non-Destructive Testing of steel tubes - Qualification and competence of level 1 and level 2 NDT personnel.EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997)prEN 101681) , Iron and steel products - Inspection documents - List of information and description.prEN 102661), Steel tubes, fittings and structural hollow sections - Symbols and definition of terms for use in product standardsEN ISO 2566-1, Steel - Conversion of elongation values Part 1: Carbon and low-alloy steels (ISO 2566-1:1984) ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical composition CR 10260, Designation systems for steel - Additional symbolsCR 10261, ECISS Information Circular IC 11 - Iron and steel - Review of available methods of chemical analysis.3 TERMS AND DEFINITIONSFor the purposes of this Part of EN 10216, the terms and definitions given in EN 10020, EN 10021, EN 10052 and prEN 10266 and the following apply:3.1test categoryclassification that indicates the extent and level of inspection and testing 3.2employerorganisation for which a person works on a regular basis.NOTE The employer may be either the tube manufacturer or supplier or a third party organisation providing, Non-Destructive Testing (NDT) services.4 SYMBOLSFor the purpose of this Part of EN 10216, the symbols given in prEN 10266 and the following apply:d specified inside diameter;d min specified minimum inside diameter; T min specified minimum wall thickness; D c calculated outside diameter; d ccalculated inside diameter;1) In preparation; until this document is published as a European Standard, the corresponding national standard(s) should be agreed at the time of enquiry and order.EN 10216-2:2002 (E)6T c calculated wall thickness; TCtest category5 CLASSIFICATION AND DESIGNATION5.1 ClassificationIn accordance with the classification system in EN 10020, the steel grades P195GH, P235GH and P265GH are classified as non-alloy quality steels and the other steel grades are classified as alloy special steels.5.2 Designation5.2.1For the tubes covered by this Part of EN 10216 the steel designation consists of:the number of this Part of EN 10216; plus either:the steel name in accordance with EN 10027-1 and CR 10260; or:the steel number allocated in accordance with EN 10027-2. 5.2.2The steel name of non-alloy steel grades is designated by:the capital letter P for pressure purposes;the indication of the specified minimum yield strength at room temperature for wall thickness less than or equal to 16 mm, expressed in MPa (see Table 4): the symbols GH for elevated temperature.5.2.3 The steel name of alloy steel grades is designated by the chemical composition (see Table 2) and the symbols for the heat treatment, where specified in column 3 and footnote 3 of Table 1.6 INFORMATION TO BE SUPPLIED BY THE PURCHASER6.1 Mandatory informationThe following information shall be supplied by the purchaser at the time of enquiry and order: a) the quantity (mass or total length or number); b) the term "tube";c) the dimensions (outside diameter D and wall thickness T or a set of dimensions covered by Option 11) (seeTable 6); d) the designation of the steel grade in accordance with this Part of EN 10216 (see 5.2); e)the test category for non-alloy steel (see 9.3).EN 10216-2:2002 (E)76.2 OptionsA number of options are specified in this Part of EN 10216 and these are listed below. In the event that the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the tubes shall be supplied in accordance with the basic specification (see 6.1).1) Cold finishing (see 7.3.2).2) Restriction on copper and tin content (see Table 2). 3) Product analysis (see 8.2.2). 4) Impact testing (see Table 4).5) Longitudinal impact testing at -10° C for non-alloy steel grades (see Table 4). 6) Tensile testing at elevated temperature (see 8.3.2). 7) Selection of leak-tightness test method (see 8.4.2.1).8) Non-Destructive Testing for test category 2 tubes for detection of transverse imperfections (see 8.4.2.2).9) Non-Destructive Testing for test category 2 tubes for detection of laminar imperfections (see 8.4.2.2). 10) Special ends preparation (see 8.6).11) Set of dimensions other than D and T (see 8.7.1). 12) Exact lengths (see 8.7.3).13) The type of inspection document other than the standard document (see 9.2.1). 14) Test pressure for hydrostatic leak-tightness test (see 11.8.1). 15) Wall thickness measurement away from the ends (see 11.9). 16) Non-Destructive Testing method (see 11.11.1). 17) Additional marking (see 12.2). 18)Protection (see 13).6.3 Examples of an order6.3.1 Example 1100 t of seamless tube with an outside diameter of 168,3 mm, a wall thickness of 4,5 mm, in accordance with EN 10216-2, made of steel grade P265GH, to test category 1 with a 3.1.C inspection certificate in accordance with EN 10204:100 t - Tube - 168,3 x 4,5 - EN 10216-2 - P265GH - TC1 - Option 13: 3.1.C6.3.2 Example 2100 m of seamless tube with a minimum inside diameter of 240 mm, a minimum wall thickness of 40 mm in accordance with Part of EN 10216, made of steel grade 10CrMo9-10, with a 3.1.C inspection certificate in accordance with EN 10204:100 m - Tube - d min 240 x T min40 - EN 10216-2 - 10CrMo9-10 - Option 13: 3.1.CEN 10216-2:2002 (E)87 MANUFACTURING PROCESS7.1 Steel making processThe steel making process is at the discretion of the manufacturer.7.2 Deoxidation processSteels shall be fully killed.7.3 Tube manufacture and delivery conditions7.3.1 All NDT activities shall be carried out by qualified and competent level 1,2 and/or 3 personnel authorised to operate by the employer.The qualification shall be in accordance with EN 10256 or, at least, an equivalent to it.It is recommended that the level 3 personnel be certified in accordance with EN 473 or, at least, an equivalent to it.The operating authorisation issued by the employer shall be in accordance with a written procedure. NDT operations shall be authorised by level 3 NDT individual approved by the employer.NOTEThe definition of level 1, 2 and 3 can be found in appropriate Standards, e.g. EN 473 and prEN 102567.3.2 The tubes shall be manufactured by a seamless process.Unless option 1 is specified, the tubes may be either hot or cold finished at the discretion of the manufacturer. The terms hot finished and cold finished apply to the condition of the tube before it is heat treated in accordance with7.3.3.Option 1: The tubes shall be cold finished before heat treatment. 7.3.3The tubes shall be supplied in the relevant heat treatment conditions as specified in Table 1.8 REQUIREMENTS8.1 GeneralWhen supplied in a delivery condition indicated in clause 7.3 and inspected in accordance with clauses 9, 10 and 11, the tubes shall conform to the requirements of this Part of EN 10216.In addition, the general technical delivery requirements specified in EN 10021 shall apply.Tubes shall be suitable for hot and cold bending provided the bending is carried out in an appropriate manner. When tubes are specified in the order by d, d min or T min the following equations, with all terms in mm, shall apply for the calculation of outside diameter D c , inside diameter d c and wall thickness T c , instead of D, d and T for the relevant requirements in clauses 8.4.1.4, 10.2.2.2, 11.3, 11.8.1, 11.9, 11.11.4, 12.1 and Table 1, footnote c, Tables 4, 5, 8, 10, 13 and 14: D c =T d2(1)D c = T d of tolerance d 22minmin(2)EN 10216-2:2002 (E)9d c = 2minmind of toleranced(3)T c = 2minminT of toleranceT(4)For tolerance see Tables 8, 9 and 10.8.2 Chemical composition8.2.1 Cast analysisThe cast analysis reported by the steel producer shall apply and conform to the requirements of Table 2.NOTE When welding tubes produced in accordance with this Part of this EN 10216, account should be taken of the fact that the behaviour of the steel during and after welding is dependent not only on the steel, but also on the applied heat treatment and the conditions of preparing for and carrying out the welding.8.2.2 Product analysisOption 3 : Product analysis for the tubes shall be supplied.Table 3 specifies the permissible deviations of the product analysis from the specified limits on cast analysisgiven in Table 2.EN 10216-2:2002 (E)10Table 1 Heat treatment conditions Steel grade Heattreatment aAustenizing Tempering SteelnameSteelnumberTemperature°CCoolingMediumTemperature°CCoolingmedium P195GH 1.0348 +N b880 to 940 Air - -P235GH 1.0345 +N b880 to 940 Air - -P265GH 1.0425 +N b880 to 940 Air - - 20MnNb6 1.0471 +N b900 to 960 Air - - 16Mo3 1.5415 +N b890 to 950 Air - -8MoB5-4 1.5450 +N b920 to 960 Air - - 14MoV6-3 1.7715 +NT b c930 to 990 Air 680 to730 air 10CrMo5-5 1.7338 +NT b c900 to 960 Air 650 to 750 air 13CrMo4-5 1.7335 +NT b c900 to 960 Air 660 to 730 air 10CrMo9-10 1.7380 +NT b c900 to 960 Air 680 to 750 air 11CrMo9-10 1.7383 +QT 900 to 960 Air or Liquid 680 to 750 air 25CrMo4 1.7218 +QT 860 to 900 Air or Liquid 620 to 680 air 20CrMoV13-5-5 1.7779 +QT 980 to 1030 Air or Liquid 680 to 730 air 15NiCuMoNb5-6-4 1.6368 +NT c880 to 980 Air 580 to 680 airX11CrMo5+I 1.7362+I +I 890 to 950 FurnaceAtmosphere- -X11CrMo5+NT1 1.7362+NT1 +NT1 930 to 980 Air 730 to 770 airX11CrMo5+NT2 1.7362+NT2 +NT2 c930 to 980 air 710 to 750 airX11CrMo9-1+I 1.7386+I +I 950 to 980 FurnaceAtmosphere- -X11CrMo9-1+NT 1.7386+NT +NT c890 to 950 air 720 to 800 airX10CrMoVNb9-1 1.4903 +NT c1040 to 1090 air 730 to 780 airX20CrMoV11-1 1.4922 +NT c1020 to 1080 air 730 to 780 aira+N = Normalising, +NT = Normalising + Tempering, +QT = Quenching + Tempering (air or liquid), +I = Isothermal Annealing.b Normalising includes Normalising Forming.c For these steel grades it may be necessary in the case of wall thickness T above 25 mm or T/D > 0,15 to apply quenching and tempering in order to achieve the intended structure and material properties . The decision shall be left to the discretion of the manufacturer but shall be stated to the customer at the time of enquiry and order. Steel tubes treated in such a way shall be designated by the steel name supplemented by the symbol +QT .EN 10216-2:2002 (E)13Table 3 Permissible deviations of the product analysis from specified limits on cast analysis given in Table 2Element Limiting value for the cast analysis in accordance with Table 2 % by massPermissible deviation of the product analysis% by mass C0,29 0,02 0,400,05 Si 0,40 to 1,000,06 1,000,05 Mn 1,00 to 1,500,10 P 0,025+ 0,005 0,010+ 0,003 S 0,010 0,020+ 0,005 Al 0,0600,005 B0,0060,001 1,000,05 1,00 to 10,000,10 Cr 10,00 to 12,500,15 Cu0,80 0,05 0,35 0,03 Mo0,35 to 1,20 0,04 N0,070 0,01 Nb0,10 0,005 0,35 0,05 Ni0,35 to 1,30 0,07 Ti0,060 + 0,010 0,10+ 0,01 V 0,10 to 0,55 0,03 8.3 Mechanical properties8.3.1 Mechanical properties at and below room temperatureThe mechanical properties at and below room temperature of the tubes shall conform to the requirements in Table 4 and in clauses 11.3, 11.4, 11.5 and 11.6.8.3.2 Proof strength at elevated temperatureThe minimum proof strength R p0,2 values at elevated temperature are given in Table 5.Option 6: Proof strength R p0,2 shall be verified. The test temperature shall be specified at the time of enquiry and order.。
2,EN10216-2承压用无缝钢管交货技术条件
BS EN10216-2:2002 承压用无缝钢管---交货技术条件第二部分：规定高温性能的合金与非合金与钢管国家前言本英国标准为欧洲标准EN10216-2：2002的官方英文版本。
本标准与BS EN10217-2：2002一起替代BS3059-2，BS3602-1，BS3604-1和已经废止的BS3606：1992标准。
目录 前言 1范围2引用标准 3定义与术语 4符号5命名与分类 5.1分类 5.2命名6订货信息 6.1必要信息 6.2可选项 6.3订单示例7制造过程 7.1炼钢过程 7.2脱氧过程7.3钢管生产与交货状态8要求 8.1总要求 8.2化学成分 8.3力学性能8.4表面与内在质量 8.5直度 8.6端部处理8.7尺寸，重量与容差w ww .b zf xw .c o9检验9.1检验类型 9.2检验文件 9.3检试验大纲10取样10.1试验频次10.2试样与试块的准备11试验方法 11.1化学分析 11.2拉伸试验 11.3压扁试验 11.4管环拉伸试验 11.5扩口试验 11.6扩环试验 11.7冲击试验 11.8密实性试验 11.9尺寸检验 11.10目视检验 11.11无损检测 11.12材料标识11.13复试，判别，再加工12标志12.1必要标志 12.2附加标志13防护附录A （参考）蠕变断裂强度值 附录ZA （参考） 参考书目w ww .b zf xw .c o前 言本文件（EN10216-2：2002）由ECISS/TC 29“钢管与管配件”技术委员会制定，其秘书处由UNI 负责运作。
本欧洲标准应视同国家标准，欧盟各成员国应于2002年11月之前通过背书或发行等效文本对其予以承认，与之相冲突的原国家标准应予废止。
本文件由欧盟委员会和欧洲自由贸易协会任命CEN 制定，支持欧盟指令的主要要求。
本文件与欧盟指令的关系，可参考附录ZA ，它也是本文件不可分割的一部分。
EN10216的其他部分是：第一部分：规定室温性能的非合金钢管 第三部分：细化晶粒合金钢管第四部分：规定低温性能的非合金与合金钢管 地五部分：不锈钢管另一个涉及承压钢管的欧洲标准是 EN10217：承压用焊接钢管根据CEN/CENELEC 的内部规章，下列国家的国家标准机构必须实施本欧洲标准，他们是：奥地利，比利时，捷克，丹麦，芬兰，法国，德国，希腊，冰岛，爱尔兰，意大利，卢森堡，马尔他，荷兰，挪威，葡萄牙，西班牙，瑞典，瑞士，英国。
BS EN10216-2：2002 中文版 压力无缝钢管.交货技术条件.规定高温特性的非合金和合金钢管介绍
BS EN10216-2:2002 承压用无缝钢管---交货技术条件第二部分：规定高温性能的合金与非合金与钢管国家前言本英国标准为欧洲标准EN10216-2：2002的官方英文版本。
本标准与BS EN10217-2：2002一起替代BS3059-2，BS3602-1，BS3604-1和已经废止的BS3606：1992标准。
目录 前言 1范围2引用标准 3定义与术语 4符号5命名与分类 5.1分类 5.2命名6订货信息 6.1必要信息 6.2可选项 6.3订单示例7制造过程 7.1炼钢过程 7.2脱氧过程7.3钢管生产与交货状态8要求 8.1总要求 8.2化学成分 8.3力学性能8.4表面与内在质量 8.5直度 8.6端部处理8.7尺寸，重量与容差w ww .b zf x w.co9检验9.1检验类型 9.2检验文件 9.3检试验大纲10取样10.1试验频次10.2试样与试块的准备11试验方法 11.1化学分析 11.2拉伸试验 11.3压扁试验 11.4管环拉伸试验 11.5扩口试验 11.6扩环试验 11.7冲击试验 11.8密实性试验 11.9尺寸检验 11.10目视检验 11.11无损检测 11.12材料标识11.13复试，判别，再加工12标志12.1必要标志 12.2附加标志13防护附录A （参考）蠕变断裂强度值 附录ZA （参考） 参考书目w ww .b zf xw .c o前 言本文件（EN10216-2：2002）由ECISS/TC 29“钢管与管配件”技术委员会制定，其秘书处由UNI 负责运作。
本欧洲标准应视同国家标准，欧盟各成员国应于2002年11月之前通过背书或发行等效文本对其予以承认，与之相冲突的原国家标准应予废止。
本文件由欧盟委员会和欧洲自由贸易协会任命CEN 制定，支持欧盟指令的主要要求。
本文件与欧盟指令的关系，可参考附录ZA ，它也是本文件不可分割的一部分。
EN10216的其他部分是：第一部分：规定室温性能的非合金钢管 第三部分：细化晶粒合金钢管第四部分：规定低温性能的非合金与合金钢管 地五部分：不锈钢管另一个涉及承压钢管的欧洲标准是 EN10217：承压用焊接钢管根据CEN/CENELEC 的内部规章，下列国家的国家标准机构必须实施本欧洲标准，他们是：奥地利，比利时，捷克，丹麦，芬兰，法国，德国，希腊，冰岛，爱尔兰，意大利，卢森堡，马尔他，荷兰，挪威，葡萄牙，西班牙，瑞典，瑞士，英国。
BS EN 10210-2：2006 非合金和细晶粒结构钢的热精加工结构空心型材 第2部分 公差,尺寸和分段特性(中译版)
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EN 10210-2:2006
尺寸单位：mm
a
该尺寸在测量 B 或 H 时为最大值，在测量 T 时为最小值。 图 1—测量方矩管 B，H 及 T 时的极限横截面位置
7.4 椭圆度 结构圆管的椭圆度（O）应根据如下公式计算。
7.5 平面凹凸度 方矩管四边平面凹度（x1）或凸度（x2）的测量见图 2 所示。 凹凸度的百分比应使用如下公式计算：
a
方矩管 ±1% ，最小±0.5mm
椭圆管
厚度（T） 椭圆度（O） 凹 度 / 凸 度 (x1, x2)e 直角度（θ） 外 角 剖 面 (C1,C2,R)f 扭曲度（V） 直线度（e） 质量（M）
a b
-10%b c 结构管 D/T 比不超过 100d 时为 2% — — — — 1% 90°±1° 每个转角最大为 3T — — —
另外，钢管每米弯曲度不可超过 3mm。
图 8—弯曲度测量 8 尺寸及截面特性 EN 10210 本部分范围内的按照本标准尺寸公差制造的用于结构设计的空心型钢其公称截面 特性应根据附录 A 的公式计算。 表 B.1 给出了热轧空心型钢圆管在一定尺寸标准范围内的截面特性值， 表 B.2 为方管， 表 B.3 为矩形管，表 B.4 为椭圆管。上述表内的截面特性值均是根据附录 A 中的公式计算得出。 注：并不是所有的制造商均能够制造出表 B.1，B.2，B.3 及 B.4 中列出的所有品规，用户应 事先对可行性进行确认。本标准覆盖的其它尺寸和壁厚可能在生产能力范围内。
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EN 10210-2:2006
1 水平仪 图 7—椭圆管扭转度的测量 7.9 弯曲度 空心型钢整个长度范围内的弯曲度测量方法应为在钢管两端之间拉一条直线， 测量管体上与 该直线偏离最远的点的距离，如图 8 所示，L 为制造商的交货长度。弯曲度百分比的计算公 式如下：
BS EN 10216-2：2002中文版 压力无缝钢管.交货技术条件.规定高温特性的非合金和合金钢管
BS EN10216-2:2002 承压用无缝钢管---交货技术条件第二部分：规定高温性能的合金与非合金与钢管国家前言本英国标准为欧洲标准EN10216-2：2002的官方英文版本。
本标准与BS EN10217-2：2002一起替代BS3059-2，BS3602-1，BS3604-1和已经废止的BS3606：1992标准。
目录 前言 1范围2引用标准 3定义与术语 4符号5命名与分类 5.1分类 5.2命名6订货信息 6.1必要信息 6.2可选项 6.3订单示例7制造过程 7.1炼钢过程 7.2脱氧过程7.3钢管生产与交货状态8要求 8.1总要求 8.2化学成分 8.3力学性能8.4表面与内在质量 8.5直度 8.6端部处理8.7尺寸，重量与容差w ww .b zf xw .c o9检验9.1检验类型 9.2检验文件 9.3检试验大纲10取样10.1试验频次10.2试样与试块的准备11试验方法 11.1化学分析 11.2拉伸试验 11.3压扁试验 11.4管环拉伸试验 11.5扩口试验 11.6扩环试验 11.7冲击试验 11.8密实性试验 11.9尺寸检验 11.10目视检验 11.11无损检测 11.12材料标识11.13复试，判别，再加工12标志12.1必要标志 12.2附加标志13防护附录A （参考）蠕变断裂强度值 附录ZA （参考） 参考书目w ww .b zf xw .c o前 言本文件（EN10216-2：2002）由ECISS/TC 29“钢管与管配件”技术委员会制定，其秘书处由UNI 负责运作。
本欧洲标准应视同国家标准，欧盟各成员国应于2002年11月之前通过背书或发行等效文本对其予以承认，与之相冲突的原国家标准应予废止。
本文件由欧盟委员会和欧洲自由贸易协会任命CEN 制定，支持欧盟指令的主要要求。
本文件与欧盟指令的关系，可参考附录ZA ，它也是本文件不可分割的一部分。
EN10216的其他部分是：第一部分：规定室温性能的非合金钢管 第三部分：细化晶粒合金钢管第四部分：规定低温性能的非合金与合金钢管 地五部分：不锈钢管另一个涉及承压钢管的欧洲标准是 EN10217：承压用焊接钢管根据CEN/CENELEC 的内部规章，下列国家的国家标准机构必须实施本欧洲标准，他们是：奥地利，比利时，捷克，丹麦，芬兰，法国，德国，希腊，冰岛，爱尔兰，意大利，卢森堡，马尔他，荷兰，挪威，葡萄牙，西班牙，瑞典，瑞士，英国。
bs en10216标准的中文版 doc
bs en10216标准的中文版 docBS EN10216-2标准7 制造过程 7.1管坯生产管坯的生产过程由制造方完成。
7.2 脱氧过程钢需为完全镇静钢 7.3管生产和交货条件7.3.1所有非破坏性试验需要由具有1，2或3级资质的人员来执行。
质量保证书应该与EN10256相一致，或至少相等。
8 合同要求 8.1 概要8.2 化学分析 8.2.1 熔炼分析 8.2.2 成品分析钢管应提供成品化学分析 8.3 力学性能8.3.1 室温力学性能8.3.2 高温下的保证强度RP0.2 8.3.3 蠕变断裂强度WB36（15NiCuMoNb5-6-5）: 屈服强度〉=440，抗拉强度610~780；断后延伸率：longth:19 t: 17;室温冲击40���Z润��钐瘗�A枥庑赖�U���V碍鳝绢�砍�涛�F��赎巯���u�A从躜鞯烧论�r办罴�u剥�I���q�h馐�A�A绅锾潴苏�m锅苁����头锡�C��传�A块态�h�T硷闵��镄谏争氲�G岛腻�~�`驹�u蛲递坟谐侬��馍���S业郧桢击码�荚�觏廪�E户岿�┭�龌。
最小高温下的保证强度RP0.2：温度强度 100 422 150 412 200 402 250 392 300 382 350 373 400 343 450 304 8.4 表面和内部质量 8.4.1 表面质量8.4.1.1钢管内外表面不能有肉眼可见的缺陷 8.4.1.28.4.1.3允许通过砂轮或加工对表面进行修磨，修磨处壁厚不得小于规定的最小壁厚。
所有修磨区域要圆滑过渡。
����沟�Z�K�U爱氇谴净祸�y�壕怊�鲮���Z陉蛮苎�X�{驳��签���㈨�绑�g�剜苛溥芥鲰��R锇�Y柠�D虬辏�����I��钓�］�诗贻颂�U�f脱睑篮狯��桠馑�K�P榉愠�＾q��叙�饬交��审蓉鏖�蛎鹑呖莴�┠愉�痈�d摇蔼�b��缝�W��蓠齿�饬匝璨蕖� 8.4.1.4 任何深度大于5%壁厚或者3mm（取两者中最小者）的表面不完整，需要进行修磨。
EN 承压用无缝钢管交货技术条件
BS EN10216-2:2002 承压用无缝钢管---交货技术条件第二部分：规定高温性能的合金与非合金与钢管国家前言本英国标准为欧洲标准EN10216-2：2002的官方英文版本。
本标准与BS EN10217-2：2002一起替代BS3059-2，BS3602-1，BS3604-1和已经废止的BS3606：1992标准。
目录 前言 1范围2引用标准 3定义与术语 4符号5命名与分类 5.1分类 5.2命名6订货信息 6.1必要信息 6.2可选项 6.3订单示例7制造过程 7.1炼钢过程 7.2脱氧过程7.3钢管生产与交货状态8要求 8.1总要求 8.2化学成分 8.3力学性能8.4表面与内在质量 8.5直度 8.6端部处理8.7尺寸，重量与容差w ww .b zf xw .c o9检验9.1检验类型 9.2检验文件 9.3检试验大纲10取样10.1试验频次10.2试样与试块的准备11试验方法 11.1化学分析 11.2拉伸试验 11.3压扁试验 11.4管环拉伸试验 11.5扩口试验 11.6扩环试验 11.7冲击试验 11.8密实性试验 11.9尺寸检验 11.10目视检验 11.11无损检测 11.12材料标识11.13复试，判别，再加工12标志12.1必要标志 12.2附加标志13防护附录A （参考）蠕变断裂强度值 附录ZA （参考） 参考书目w ww .b zf xw .c o前 言本文件（EN10216-2：2002）由ECISS/TC 29“钢管与管配件”技术委员会制定，其秘书处由UNI 负责运作。
本欧洲标准应视同国家标准，欧盟各成员国应于2002年11月之前通过背书或发行等效文本对其予以承认，与之相冲突的原国家标准应予废止。
本文件由欧盟委员会和欧洲自由贸易协会任命CEN 制定，支持欧盟指令的主要要求。
本文件与欧盟指令的关系，可参考附录ZA ，它也是本文件不可分割的一部分。
EN10216的其他部分是：第一部分：规定室温性能的非合金钢管 第三部分：细化晶粒合金钢管第四部分：规定低温性能的非合金与合金钢管 地五部分：不锈钢管另一个涉及承压钢管的欧洲标准是 EN10217：承压用焊接钢管根据CEN/CENELEC 的内部规章，下列国家的国家标准机构必须实施本欧洲标准，他们是：奥地利，比利时，捷克，丹麦，芬兰，法国，德国，希腊，冰岛，爱尔兰，意大利，卢森堡，马尔他，荷兰，挪威，葡萄牙，西班牙，瑞典，瑞士，英国。
EN 10216-3(2002)压力管道用无缝钢管 供货状态
NF EN 10216-3décembre 2002Ce document est à usage exclusif et non collectif des clients AFNOR SAGAWEB.Toute mise en réseau, reproduction et rediffusion, sous quelque forme que ce soit,même partielle, sont strictement interdites.This document is intended for the exclusive and non collective use of AFNOR SAGAWEB.(Standards on line) customers. All network exploitation, reproduction and re-dissemination,even partial, whatever the form (hardcopy or other media), is strictly prohibited.SAGAWEBPour : NORDON INDUSTRIES SAle 24/5/2005 - 16:07Diffusé par11992© AFNOR 2002AFNOR 20021st issue 2002-12-P© A F N O R 2002 — A l l r i g h t s r e s e r v e dFE029167ISSN 0335-3931NF EN 10216-3December 2002Classification index:A 49-200-3European standardFrench standardPublished and distributed by Association Française de Normalisation (AFNOR — French standard institute) — 11, avenue Francis de Pressensé —93571 Saint-Denis La Plaine Cedex — Tel.: + 33 (0)1 41 62 80 00 — Fax: + 33 (0)1 49 17 90 00 — www.afnor.frICS: 23.040.10; 77.140.75Seamless steel tubes for pressure purposesTechnical delivery conditionsPart 3: Alloy fine grain steel tubesF :Tubes sans soudure en acier pour service sous pression — Conditionstechniques de livraison — Partie 3: Tubes en acier allié à grain fin D :Nahtlose Stahlrohre für Druckbeanspruchungen — TechnischeLieferbedingungen — Teil 3: Rohre aus legierten FeinkornstählenFrench standard approvedby decision of the Director General of AFNOR on November 20, 2002 taking effect on December 20, 2002.Correspondence The European Standard EN 10216-3:2002 has the status of French standard.AnalysisThis document specifies the technical delivery conditions, according to two test categories, for seamless alloy fine grain steel tubes with a round section.DescriptorsTechnical International Thesaurus: steel tubes, seamless tubes, unalloyed steels,alloy steels, classifications, designation, delivery condition, chemical composition,dimensions, dimensional tolerances, appearance, inspection, tests, mechanical tests, leak tests, marking.ModificationsCorrectionsNF EN 10216-3:2002—2—National forewordReferences to French standardsThe correspondence between the standards figuring in the clause "Normative references" and the identical French standards is as follows:EN 10002-1: NF EN 10002-1 (classification index: A 03-001)EN 10002-5: NF EN 10002-5 (classification index: A 03-005)EN 10020: NF EN 10020 (classification index: A 02-025)EN 10021: NF EN 10021 (classification index: A 00-100)EN 10027-1: NF EN 10027-1 (classification index: A 02-005-1)EN 10027-2: NF EN 10027-2 (classification index: A 02-005-2)EN 10045-1: NF EN 10045-1 (classification index: A 03-011)EN 10052: NF EN 10052 (classification index: A 02-010)EN 10204: NF EN 10204 (classification index: A 00-001)EN 10233: NF EN 10233 (classification index: A 03-092)EN 10234: NF EN 10234 (classification index: A 03-093)EN 10236: NF EN 10236 (classification index: A 03-095)EN 10237: NF EN 10237 (classification index: A 03-096)EN 10246-1: NF EN 10246-1 (classification index: A 49-875-1)EN 10246-5: NF EN 10246-5 (classification index: A 49-875-5)EN 10246-6: NF EN 10246-6 (classification index: A 49-875-6)EN 10246-7: NF EN 10246-7 (classification index: A 49-875-7)EN 10246-14: NF EN 10246-14 (classification index: A 49-875-14)EN 10256: NF EN 10256 (classification index: A 49-876)ENV 10220: A 49-005 (classification index: A 49-005)EN 10168: NF EN 10168 (classification index: A 03-116) 1)EN 10266: NF EN 10266 (classification index: A 49-002) 1)EN ISO 377: NF EN ISO 377 (classification index: A 03-112)EN ISO 2566-1: NF EN ISO 2566-1 (classification index: A 03-174)CR 10260: FD CR 10260 (classification index: A 02-005-3)CR 10261: FD CR 10261 (classification index: A 30-002)EN ISO 14284: NF EN ISO 14284 (classification index: A 06-375) 1)The correspondence between the standards figuring in the clause "Normative references" and French standards having the same scope, but which are not identical, is as follows:EURONORM 103: NF A 04-1021)Currently being prepared.—3—NF EN 10216-3:2002 The replacement of current French standards affected by the set of European standards EN 10216 and EN 10217 will take place as follows:French standards European standardsNF A 49-111 (September 1978)NF EN 10216-1NF A 49-112 (March 1987)NF EN 10216-1NF A 49-117 (September 1985)NF EN 10216-5NF A 49-142 (March 1987)NF EN 10217-1NF A 49-147 (December 1980) (ENR)NF EN 10217-7NF A 49-210 (September 1985)NF EN 10216-2NF A 49-211 (September 1989)NF EN 10216-2NF A 49-213 (March 1990)NF EN 10216-2NF A 49-215 (February 1981) (ENR)NF EN 10216-2NF A 49-217 (October 1987)NF EN 10216-5NF A 49-218 (April 1979) (ENR)NF EN 10216-5NF A 49-219 (March 1990)NF EN 10216-2NF A 49-230 (September 1985)NF EN 10216-4NF A 49-240 (September 1983) (ENR)NF EN 10217-4NF A 49-241 (July 1986)NF EN 10217-2NF A 49-242 (April 1985)NF EN 10217-2NF A 49-243 (April 1985)NF EN 10217-2NF A 49-244 (October 1993)NF EN 10217-7NF A 49-245 (July 1986)NF EN 10217-2NF A 49-247 (February 1981) (ENR)NF EN 10217-7NF A 49-252 (September 1982) (ENR)NF EN 10217-2; NF EN 10217-5NF A 49-253 (September 1982) (ENR)NF EN 10217-2; NF EN 10217-5EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 10216-3 May 2002ICS 23.040.10; 77.140.75English versionSeamless steel tubes for pressure purposes - Technical delivery conditions - Part 3: Alloy fine grain steel tubesTubes sans soudure en acier pour service sous pression -Conditions techniques de livraison - Partie 3: Tubes enacier allié à grain finNahtlose Stahlrohre für Druckbeanspruchungen -Technische Lieferbedingungen - Teil 3: Rohre aus legiertenFeinkornbaustählenThis European Standard was approved by CEN on 25 April 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONC O M I TÉE U R O PÉE NDE N O R M A LI S A T I O NEUR OPÄIS C HES KOM ITEE FÜR NOR M UNGManagement Centre: rue de Stassart, 36 B-1050 Brussels© 2002 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10216-3:2002 EEN 10216-3:2002 (E)Contents Foreword (3)1SCOPE (4)2NORMATIVE REFERENCES (4)3TERMS AND DEFINITIONS (5)4SYMBOLS (6)5CLASSIFICATION AND DESIGNATION (6)5.1Classification (6)5.2Designation (6)6INFORMATION TO BE SUPPLIED BY THE PURCHASER (7)6.1Mandatory information (7)6.2Options (7)6.3Examples of an order (8)7MANUFACTURING PROCESS (8)7.1Steelmaking process (8)7.2Deoxidation process (8)7.3Tube manufacture and delivery conditions (8)8REQUIREMENTS (9)8.1General (9)8.2Chemical composition (9)8.3Mechanical properties (10)8.4Appearance and internal soundness (17)8.5Straightness (17)8.6Preparation of ends (17)8.7Dimensions, masses and tolerances (18)9INSPECTION (22)9.1Types of inspection (22)9.2Inspection documents (22)9.3Summary of inspection and testing (23)10SAMPLING (25)10.1Frequency of tests (25)10.2Preparation of samples and test pieces (26)11TEST METHODS (27)11.1Chemical analysis (27)11.2Tensile test (27)11.3Flattening test (28)11.4Ring tensile test (28)11.5Drift expanding test (28)11.6Ring expanding test (29)11.7Impact test (29)11.8Leak tightness test (29)11.9Dimensional inspection (30)11.10Visual examination (30)11.11Non-destructive testing (30)11.12Material identification (31)11.13Retests , sorting and reprocessing (31)12MARKING (31)12.1Marking to be applied (31)12.2Additional marking (31)13PROTECTION (31)Annex A (normative) (32)Annex ZA (informative) (33)Bibliography (34)2EN 10216-3:2002 (E)ForewordThis document (EN 10216-3:2002) has been prepared by Technical Committee ECISS/TC 29, "Steel tubes and fittings for steel tubes", the secretariat of which is held by UNI.This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2002, and conflicting national standards shall be withdrawn at the latest by November 2002.This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. Other Parts of EN 10216 are:Part 1 :Non-alloy steel tubes with specified room temperature propertiesPart 2 :Non-alloy and alloy steel tubes with specified elevated temperature propertiesPart 4 :Non-alloy and alloy steel tubes with specified low temperature propertiesPart 5 :Stainless steel tubesAnother European Standard series covering tubes for pressure purposes is:EN 10217:Welded steel tubes for pressure purposesAccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.3EN 10216-3:2002 (E)1 SCOPEThis Part of EN 10216 specifies the technical delivery conditions in two test categories for seamless tubes of circular cross section, made of weldable alloyed fine grained steel.2 NORMATIVE REFERENCESThis European Standard incorporates by date or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For date references, subsequent amendments to or revisions of, any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).The requirements of this European Standard rule when they differ from those in the standards and documents referred to below:EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test (at ambient temperature).EN 10002-5, Metallic materials - Tensile testing - Part 5: Method of testing (at elevated temperature).EN 10020, Definitions and classification of grades of steel.EN 10021, General technical delivery requirements for steel and iron products.EN 10045-1, Metallic materials - Charpy impact test - Part 1: Test method.EN 10052, Vocabulary of heat treatment terms for ferrous products.EN 10204, Metallic products - Types of inspection documents.EN 10027-1, Designation systems for steels - Part 1 : Steel names, principle symbols.EN 10027-2, Designation systems for steels Part 2 : Numerical systems.ENV 10220, Seamless and welded steel tubes - Dimensions and masses per unit lengthEN 10233, Metallic materials - Tubes - Flattening test.EN 10234, Metallic materials - Tubes - Drift expanding test.EN 10236, Metallic materials - Tubes - Ring expanding test.EN 10237, Metallic materials - Tubes - Ring tensile test.EN 10246-1, Non-Destructive Testing of steel tubes Part 1 : Automatic electromagnetic testing of seamless and welded (except submerged arc welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness.EN 10246-5,Non-Destructive Testing of steel tubes – Part 5: Automatic full peripheral magnetic transducer/flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal imperfections.EN 10246-6, Non-Destructive Testing of steel tubes - Part 6: Automatic full peripheral ultrasonic testing of seamless steel tubes for the detection of transverse imperfections.EN 10246-7, Non-Destructive Testing of steel tubes - Part 7 : Automatic full peripheral ultrasonic testing of seamless and welded (except submerged arc welded) steel tubes for the detection of longitudinal imperfections.4EN 10216-3:2002 (E)5EN 10246-14, Non-Destructive Testing of steel tubes - Part 14:Automatic ultrasonic testing of seamless and welded (except submerged arc welded) steel tubes for the detection of laminar imperfections.EN 10256, Non-Destructive Testing of steel tubes - Qualification and competence of level 1 and level 2 NDT personnel.EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997)EN ISO 2566-1, Steel - Conversion of elongation values – Part 1: Carbon and low-alloy steels (ISO 2566-1:1984)prEN 101681),Iron and steel products - Inspection documents - List of information and descriptionprEN 102661), Steel tubes, fittings and structural hollow sections - Symbols and definition of terms for use in product standardsEURONORM 1032), Microscopic determination of ferritic grain size of steel.ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical compositionCR 10260, Designation systems for steel - Additional symbolsCR 10261, ECISS Information Circular IC 11 - Iron and steel - Review of available methods of chemical analysis.3 TERMS AND DEFINITIONSFor the purposes of this Part of EN 10216, the terms and definitions given in EN 10020, EN 10021,EN 10052, prEN 10266 and the following apply:3.1test categoryclassification that indicates the extent and level of inspection and testing.3.2employerorganisation for which a person works on a regular basis.NOTE The employer may be either the tube manufacturer or supplier or a third party organisation providing Non-Destructive Testing (NDT) services.3.3fine grain steelsteel having a ferritic grain size equal to or finer than 6 in accordance with EURONORM 1031)In preparation; until this document is published as a European Standard, the corresponding national standard(s)should be agreed at the time of enquiry and order.2)Until this EURONORM is transformed into an a European Standard, it can be implemented or the corresponding national standard may be agreed at the time of enquiry and order.EN 10216-3:2002 (E)64 SYMBOLSFor the purpose of this Part of EN 10216, the symbols given in prEN 10266 and the following apply: d specified inside diameter;d min specified minimum inside diameter; T min specified minimum wall thickness; D c calculated outside diameter; d c calculated inside diameter; T c calculated wall thickness; TCtest category5 CLASSIFICATION AND DESIGNATION5.1 Classification5.1.1This Part of EN 10216 covers steel grades in four qualities (see Tables 2 and 4):the basic quality (P ... N, Q);the elevated temperature quality (P ... NH, QH); the low temperature quality (P ... NL1, QL, QL1); the special low temperature quality (P ... NL2, QL2).5.1.2In accordance with the classification system in EN 10020, the steel grades P275NL1, P355N,P355NH and P355NL1 are classified as alloy quality steels and the other steel grades are classified as alloy special steels.5.2 Designation5.2.1For the tubes covered by this Part of EN 10216 steel the designation consists of:the number of this Part of EN 10216;plus either:the steel name in accordance with EN 10027-1 and CR 10260;or :the steel number allocated in accordance with EN 10027-2.5.2.2The steel name is designated by:the capital letter P for pressure purposes;the indication of the specified minimum yield strength for the lowest applicable wall thickness groupexpressed in megapascals, (Table 4); one of the additional symbols N, NH, NL1, NL2, Q, QH, QL, QL1 or QL2 (see 5.1.1, Tables 2 and 4).EN 10216-3:2002 (E) 6 INFORMATION TO BE SUPPLIED BY THE PURCHASER6.1 Mandatory informationThe following information shall be supplied by the purchaser at the time of enquiry and order :a) the quantity (mass or total length or number);b) the term "tube";c) the dimensions (outside diameter D and wall thickness T or a set of dimensions covered by option 10)(see Table 7);d) the designation of the steel grade in accordance with this Part of EN 10216 (see 5.2);e) the test category, except for P620 and P690 (see 9.3).6.2 OptionsA number of options are specified in this Part of EN 10216 and these are listed below. In the event that the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the tubes shall be supplied in accordance with the basic specification (see 6.1).1) Cold finishing (see 7.3.2).2) Restriction on copper and tin content (see Table 2).3) Product analysis (see 8.2.2).4) Verification of elevated temperature properties of NH-grades (see 8.3.2).5) Verification of elevated temperature properties of NL- and QL-grades (see 8.3.2).6) Selection of leak-tightness test method (see 8.4.2.1).7) Non-Destructive Testing for test category 2 tubes for detection of transverse imperfections (see8.4.2.2)8) Non-Destructive Testing for test category 2 tubes for the detection of laminar imperfections (see8.4.2.2).9) Special ends preparation (see 8.6).10) Set of dimensions other than D and T (see 8.7.1).11) Exact lengths (see 8.7.3).12) The type of inspection document other than the standard document (see 9.2.1).13) Additional impact test at test temperature different from standard test temperature (see Table 16).14) Test pressure for hydrostatic leak-tightness test (see 11.8.1).15) Wall thickness measurement away from the ends (see 11.9)16) Non-Destructive Testing method (see 11.11.1)17) Additional marking (see 12.2).18) Protection (see clause 13).7EN 10216-3:2002 (E)86.3 Examples of an order500 m of seamless tube with an outside diameter of 168,3 mm, a wall thickness of 4,5 mm in accordance with EN 10216-3, made of steel grade P355N, test category 1, with a 3.1.C inspection certificate in accordance with EN 10204:500 m – Tube – 168,3 x 4,5 – EN 10216-3 – P355N – TC1 – Option 12: 3.1.C7 MANUFACTURING PROCESS7.1 Steelmaking processThe steelmaking process is at the discretion of the manufacturer.7.2 Deoxidation processSteels shall be fully killed and be made to a fine grain practice (see 3.3).7.3 Tube manufacture and delivery conditions7.3.1All NDT activities shall be carried out by qualified and competent level 1,2 and/or 3 personnel authorised to operate by the employer.The qualification shall be in accordance with EN 10256 or, at least, an equivalent to it.It is recommended that the level 3 personnel be certified in accordance with EN 473 or, at least, an equivalent to it.The operating authorisation issued by the employer shall be in accordance with a written procedure.NDT operations shall be authorised by level 3 NDT individual approved by the employer.NOTEThe definition of level 1, 2 and 3 can be found in appropriate Standards, e.g. EN 473 and EN 102567.3.2 The tubes shall be manufactured by a seamless process.Unless option 1 is specified, the tubes may be either hot or cold finished at the discretion of the manufacturer. The terms “ hot finished “ and “ cold finished “ apply to the condition of the tube before it is heat treated in accordance with 7.3.3.Option 1: The tubes shall be cold finished before heat treatment.7.3.3The tubes shall be supplied in the relevant heat treatment conditions as specified in Table 1 and Table 4.Table 1 — Forming operation and delivery conditionForming operationHeat treatment conditionSymbolfor the delivery conditionNormalised a b+N Hot finishedQuenched and tempered +QT Normalised b+N Hot rolled + cold finishedQuenched and tempered+QTa See 7.3.4b See 7.3.5EN 10216-3:2002 (E)97.3.4In case of steel grade P355N and P355NH normalising may be replaced by normalising forming.7.3.5For steel grade P460 it may be necessary to apply delayed cooling or additional tempering after normalising. For N-steel grades accelerated cooling after austenitizing may be necessary in order to achieve the intended structure and material properties in case of wall thickness above 25 mm or T/D > 0,15In both cases, the decision shall be left to the discretion of the manufacturer but shall be stated to the customer at the time of enquiry and order. Steel tubes treated with accelerated cooling shall be designated by the steel name supplemented by the symbol “+QT “.8 REQUIREMENTS8.1 GeneralWhen supplied in a delivery condition indicated in clause 7.3 and inspected in accordance with clauses 9, 10and 11, the tubes shall conform to with the requirements of this Part of EN 10216.In addition, the general technical delivery requirements specified in EN 10021 shall apply.Tubes shall be suitable for hot and cold bending provided the bending is carried out in an appropriate manner.When tubes are specified in the order by d, d min or T min the following equations, with all terms in mm, shall apply for the calculation of outside diameter D c , inside diameter d c and wall thickness T c , instead of D, d and T for the relevant requirements in clauses 7.3.5, 8.4.1.4, 10.2.2.2, 11.3, 11.8.1, 11.9, 11.11.4, 12.1 and Table 1, footnote c, Tables 4, 5, 6, 7, 10, 12, 15 and 16:D c = T d 2 (1)D c = Td of tolerance d 22minmin(2)d c = 2minmind of tolerance d (3)T c = 2minmin T of tolerance T(4)For tolerance see Tables 10, 11 and 12.8.2 Chemical composition8.2.1 Cast analysisThe cast analysis reported by the steel producer shall apply and conform to the requirements of Table 2.NOTE When welding tubes produced in accordance with this Part of EN 10216, account should be taken of the fact that the behaviour of the steel during and after welding is dependent not only on the steel, but also on the applied heat treatment and the conditions of preparing for and carrying out the welding.8.2.2 Product analysisOption 3: A product analysis for the tubes shall be supplied.Table 3 specifies the permissible deviations of the product analysis from the specified limits on cast analysis given in Table 2.EN 10216-3:2002 (E)8.3 Mechanical properties8.3.1The mechanical properties of the tubes shall conform to the requirements in Tables 4, 5, 6, 7, Annex A, and in clauses 11.3, 11.4, 11.5 and 11.6.8.3.2The elevated temperature properties given in Tables 5 and 6 shall be verified for steel grade P620QH and P690QH at 300 °C.Option 4: Elevated temperature properties given in Tables 5 and 6 shall be verified for NH-grades at 400°C.The properties at elevated temperature given in Tables 5 and 6 for steel grades P355NH, P460NH, P620QH and P690QH, apply for the corresponding low and special low temperature quality steels if option 5 is specified.The properties at the elevated temperature given in Annex A for steel grades P275NL1 and P275NL2 apply, if option 5 is specifiedOption 5: Elevated temperature properties given in Tables 5, 6 and Annex A shall be verified for NL- and QL-grades at the highest temperature for which a value is given.10EN 10216-3:2002 (E)11Table 2 — Chemical composition (cast analysis) a , in % by massSteel grade CSi Mn P S Cr Mo Ni Al totbCu N Nb Ti V Nb+Ti+V Steel name Steel number max max maxmax max max max min max max max max max max P275NL1 1.04880,160,400,50 to 1,500,0250,0200,30c0,08 c0,500,0200,30 c d0,0200,050,0400,050,05P275NL2 1.11040,015P355N P355NH 1.05621.05650,200,500,90 to 1,700,0250,0200,30 c 0,08 c0,500,0200,30 c d0,0200,050,0400,100,12P355NL1 1.1106P355NL2 1.05660,180,015P460N P460NH P460 NL1 1.89051.89351.89150,200,601,00 to 1,700,0250,0200,300,100,800,0200,70 e0,0200,050,0400,200,22P460NL2 1.89180,015P620Q P620QH 1.88761.88770,200601,00 to1,700,0250,0200,300,100,800,0200,30 d0,0200,050,0400,200,22P620QL 1.88900,015P690Q P690QH P690QL1 1.88791.88801.88810,200,801,20 to 1,700,0250,0151,500,702,500,0200,30 d0,0150,060,050,12P690QL21.88880,0200,010aElements not included in this Table shall not be intentionally added to the steel without the agreement of the purchaser, except for elements which may be added for finishing the cast. All appropriate measures shall be taken to prevent the addition of undesirable elements from scrap or other materials used in the steel making process.b Al/N 2, if nitrogen is fixed by niobium, titanium or vanadium the requirements for Al tot and Al/N do not apply.c The sum of the percentage by mass of the three elements chromium, copper and molybdenum shall not exceed 0,45 %.d Option 2: In order to facilitate subsequent forming operation, an agreed maximum copper content lower than indicated and an agreed specified maximum tin content shall apply.eIf the percentage by mass of copper exceeds 0,30 %, the percentage by mass of nickel shall be at least half the percentage by mass of copper.SAGAWEB pour : NORDON INDUSTRIES SA le 24/5/2005 - 16:07EN 10216-3:2002 (E)12Table 3 — Permissible deviations of the product analysis from specified limits on cast analysis givenin Table 2ElementLimiting value for the cast analysis in accordance withTable 2% by massPermissible deviation of the productanalysis% by massC 0,20+ 0,02 0,40+ 0,05Si0,40 to 0,80+ 0,06Mn 1,70+ 0,10- 0,05P 0,025+ 0,005 0,015+ 0,003S0,015 0,020+ 0,005Al 0,020- 0,005 0,30+ 0,05Cr > 0,30 to 1,50+ 0,10Cu 0,70+ 0,05 0,35+ 0,03Mo > 035 to 0,70+ 0,04N 0,020+ 0,002Nb 0,06+ 0,005Ni 2,50+ 0,05Ti 0,05+ 0,01V0,10+ 0,01 0,10 to 0,20+ 0,02SAGAWEB pour : NORDON INDUSTRIES SA le 24/5/2005 - 16:07EN 10216-3:2002 (E)13Table 4 — Mechanical properties at room temperatureSteel gradeTensile propertiesSteel nameSteel numberHeat Treatment conditionUpper yield strength or proof strengthR eH or R p0,2min.for wall thickness T in mm Tensile strengthR mfor wall thickness T in mmElongation aAmin.1212to 20 20to 4040to 50 50to 65 65to 8080to 100 2020to 4040to 6565to 100l tMPa *MPa *(%)P 275 NL 1P 275 NL 2 1.04881.1104+N 275265255245235390 to 530390 to 510360 to 4802422P 355 N P 355 NH 1.05621.0565+N b 355345335325315305490 to 650490 to 630450 to 5902220P 355 NL 1P 355 NL 2 1.05661.1106+N P 460 N P 460 NH P 460 NL 1P 460 NL 2 1.89051.89351.89151.8918+N c460450440425410400390560 to 730490 to 6901917P 620 Q P 620 QH P 620 QL 1.88761.88771.8890620580540500--740 to 930690 to 860630 to 800-1614P 690 Q P 690 QH P 690 QL 1 1.88791.88801.8881+QT 690650615580540500770 to 960720 to 900670 to 850620 to 800P 690 QL 21.8888690690650615580540770 to 960700 to 880680 to 860a l = longitudinal; t = transverse.b See 7.3.4.c See 7.3.5.* 1 MPa = 1 N/mm2SAGAWEB pour : NORDON INDUSTRIES SA le 24/5/2005 - 16:07。
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BS EN10216-2:2002 承压用无缝钢管---交货技术条件第二部分：规定高温性能的合金与非合金与钢管国家前言本英国标准为欧洲标准EN10216-2：2002的官方英文版本。
本标准与BS EN10217-2：2002一起替代BS3059-2，BS3602-1，BS3604-1和已经废止的BS3606：1992标准。
目录 前言 1范围2引用标准 3定义与术语 4符号5命名与分类 5.1分类 5.2命名6订货信息 6.1必要信息 6.2可选项 6.3订单示例7制造过程 7.1炼钢过程 7.2脱氧过程7.3钢管生产与交货状态8要求 8.1总要求 8.2化学成分 8.3力学性能8.4表面与内在质量 8.5直度 8.6端部处理8.7尺寸，重量与容差w ww .b zf x w.co9检验9.1检验类型 9.2检验文件 9.3检试验大纲10取样10.1试验频次10.2试样与试块的准备11试验方法 11.1化学分析 11.2拉伸试验 11.3压扁试验 11.4管环拉伸试验 11.5扩口试验 11.6扩环试验 11.7冲击试验 11.8密实性试验 11.9尺寸检验 11.10目视检验 11.11无损检测 11.12材料标识11.13复试，判别，再加工12标志12.1必要标志 12.2附加标志13防护附录A （参考）蠕变断裂强度值 附录ZA （参考） 参考书目w ww .b zf xw .c o前 言本文件（EN10216-2：2002）由ECISS/TC 29“钢管与管配件”技术委员会制定，其秘书处由UNI 负责运作。
本欧洲标准应视同国家标准，欧盟各成员国应于2002年11月之前通过背书或发行等效文本对其予以承认，与之相冲突的原国家标准应予废止。
本文件由欧盟委员会和欧洲自由贸易协会任命CEN 制定，支持欧盟指令的主要要求。
本文件与欧盟指令的关系，可参考附录ZA ，它也是本文件不可分割的一部分。
EN10216的其他部分是：第一部分：规定室温性能的非合金钢管 第三部分：细化晶粒合金钢管第四部分：规定低温性能的非合金与合金钢管 地五部分：不锈钢管另一个涉及承压钢管的欧洲标准是 EN10217：承压用焊接钢管根据CEN/CENELEC 的内部规章，下列国家的国家标准机构必须实施本欧洲标准，他们是：奥地利，比利时，捷克，丹麦，芬兰，法国，德国，希腊，冰岛，爱尔兰，意大利，卢森堡，马尔他，荷兰，挪威，葡萄牙，西班牙，瑞典，瑞士，英国。
w ww .b zf xw .c o本部分EN10216标准，对指定高温性能的非合金与合金圆形钢管，在两种试验类别下的交货技术条件作出了规定。
2引用标准本欧洲标准编入了所引用的其他出版物的条款，有的标明了日期，有的未标明日期，全部列在下面。
任何标明日期的引用标准，其后来的修改版本必须经本标准修改编入后才能适用于本标准。
下列标准或文件与本欧洲标准有冲突或差异时，应以本标准为准。
EN10002-1，金属材料-拉伸试验-第一部分：试验方法（室温） EN10002-5，金属材料-拉伸试验-第五部分：试验方法（高温） EN10020，钢级的定义与分类EN10021，钢铁制品的一般交货技术条件EN10027-1，钢的命名系统-第一部分：名称与基本符号 EN10027-2，钢的命名系统-第二部分：编号EN10045-1，金属材料-夏比冲击试验-第一部分：试验方法 EN10052，黑色金属热处理术语词汇表 EN10204，金属制品-检验文件类型EN10220，无缝与焊接钢管-尺寸与米重 EN10233，金属材料-管材-压扁试验 EN10234，金属材料-管材-扩口试验EN10236，金属材料-管材-扩环（卷边？）试验 EN10237，金属材料-管材-管环拉伸试验EN10246-1，钢管无损检测第一部分：无缝与焊接（埋弧焊除外）铁磁性钢管水压密实性的电磁自动检测 EN10246-5，钢管无损检测第五部分：无缝与焊接（埋弧焊除外）铁磁性钢管纵向欠缺的周身磁感应/漏磁自动检测EN10246-6，钢管无损检测第六部分：无缝钢管横向欠缺的周身超声波自动检测EN10246-7，钢管无损检测第七部分：无缝与焊接（埋弧焊除外）钢管纵向欠缺的周身超声波自动检测 EN10246-14，钢管无损检测第十四部分：无缝与焊接（埋弧焊除外）钢管层状欠缺的超声波自动检测 EN10256，钢管无损检测-NTD 1级和2级人员的资质与能力 EN ISO 377，钢及其制品-力学试验取样位置与试块加工 EN10168（制定中），钢铁制品-检验文件-信息与描述 EN10266（制定中），钢管、管件及中空型材-用与产品标准的符号与术语定义EN ISO2566-1，钢-伸长率值转换-第一部分：碳钢与低合金钢（ISO2566-1：1984） ISO 14284，钢铁-化学成分测定用取样及其加工 CR 10260，钢的命名系统-附加符号CR 10261，ECISS Information Circular IC 11-钢铁-现有化学分析方法评论3 术语与定义下面的定义及EN10020 、EN10021 、EN10052和EN10266（制定中）中相关术语的定义适用于本标准。
3.1检验类型检验和试验的程度与等级的分类。
3.2雇主员工按一定的规章制度为其工作的组织。
注：雇主可能是钢管制造商或供应商，也可能是一个可以提供无损检验服务的第三方机构。
w ww .b zf xw .c o下列定义及EN10266（制定中）有关符号的规定适用与本标准。
d —给定的内径；d min —给定的最小内径； T min —给定的最小壁厚； D c —计算的外径； d c —计算的内径； T c —计算的壁厚； TC —检验类型5分类与命名 5.1分类根据EN 10020中的分类方法， P195GH 、P235GH 和P265GH 钢级归类为非合金钢，其他的钢级规定为特殊合金钢。
5.2命名5.2.1 本标准中包括的钢种的命名包括： ——本标准号（EN 10216-2：2002）；加上：——EN 10027-1和CR10260中规定的钢的名称，或EN10027-2中规定的钢的序数。
5.2.2非合金钢的名称构成包括： —表示压力的大写字母P ；—钢管壁厚小于16㎜时，给定的室温最小屈服强度，单位MPa （见表4）： —高温符号GH 。
5.2.3合金钢的名称由元素成分（见表2）和热处理代号（见表1第三列和注脚3）组成。
6 定货信息 6.1必要信息购方应在询价和订货时提供以下信息： a)数量（总重量，总长度或总支数）； b)词汇“钢管”；c)尺寸（外径D 和壁厚S 或选表11中的系列尺寸）（见表6）； d) EN 10216-2中规定的钢号； e)非合金钢的检验类型。
6.2可选信息EN 10216-2中规定了一系列可选信息，现将这些信息列在下面。
如果购方在询单时没有提出要求执行以下的可选信息，则供方按一般要求供应钢管（见6.1）。
1) 冷加工状态交货（见7.3.2）； 2) 铜和锡含量限制（见表2）； 3) 产品分析（见8.2.2）； 4) 冲击试验（见表4）；5) 非合金钢在－10℃下的纵向冲击试验（见表4）； 6) 高温拉伸试验（见8.3.2）；7) 密实性试验方法的选择（见8.4.2.1）；8) TC2类钢管横向缺陷的无损检验（见8.4.2.2）；w ww .b zf xw .c o9) TC2类钢管分层缺陷的无损检验（见8.4.2.2）； 10) 管端的特殊加工（见8.6）；11) 除外径和壁厚以外的其他尺寸（见8.7.1）； 12) 确切长度（见8.7.3）；13) 除标准文件外的检验文件类型（见9.2.1）； 14) 水压试验试验压力（见11.8.1）； 15) 管端以外的壁厚测量（见11.9）； 16) 无损检验（见11.11.1）； 17) 附加标志（见12.2）； 18) 防护（见13）。
6.3订单示例 6.3.1 示例1 EN 10026-2标准, 材质P265GH, 外径为168.3㎜, 壁厚为4.5㎜的无缝钢管100吨, 检验类型1，提供EN 10204 3.1C 证.100吨—钢管—168.3×4.5—EN 10216-2—P265GH —TC1—选择要求13: 3.1C 证 6.3.2 示例2EN 10026标准, 材质10CrMo9-10,最小内径为240㎜,最小壁厚为40㎜的无缝钢管100吨, 检验类型1，提供EN 10204 3.1C 证.100吨—钢管—d min 240×T min 40—EN 10216-2—10CrMo9-10—选择要求13: 3.1C 证7 制造过程 7.1炼钢工艺炼钢工艺由制造厂自行选择.7.2脱氧过程管坯必须是全镇静钢.7.3钢管生产和交货条件7.3.1所有无损检验必须是由雇主授权并具有1、2或3级资格证书的人员操作。
操作人员的资格认证必须符合EN 10256或与其相当的标准的要求。
推荐使用按照EN 473标准取得的3级证书或与其相当的其他3级证书。
雇主授权操作必须形成书面文件程序。
无损检验操作应由得到雇主批准的NDT3级证人员授权。
注：1、2和3级的定义应符合相关标准要求，如EN 473或EN 10256（制定中）。
7.3.2钢管必须是由无缝钢管生产工艺生产。
如果没有规定按可选项1进行生产，则 钢管制造商可自行选择按热状态或冷状态交货。
词汇“热加工”和“冷加工” 系钢管按7.3.3要求进行热处理之前的状态。
选择要求1：钢管在热处理前必须是经过冷加工状态。
7.3.3钢管应按表1规定进行相关的热处理后交货。
w ww .b zf xw .c o注a: +=正火，+NT=正火+回火，+QT=淬火+回火（空冷或水冷），+I=等温退火。
注b:正火包括正火成形。
注c ：对这类钢种，当其管体壁厚大于25㎜或T/D ＞0.15时，为获得预期的结构与材料性能，可能有必要进行淬火加回火处理。
制造厂自行决定进行（N+T ）还是（Q+T ）热处理，但应在询价或订货时予以声明。
这类钢种如进行（Q+T ）热处理，其钢号后应附加“+QT ”符号。
8 要求8.1一般要求若钢管按7.3条要求的状态供货，并按9，10，11条要求进行了检验，即认为钢管符合本标准的要求。
另外，还需满足EN10021规定的一般交货技术条件。
钢管应能进行适当的冷弯或热弯加工。
当订单中规定钢管的内径（d ）,最小内径（d min ）和最小壁厚（T min ）时，可用下列公式计算外径D c ，内径d c 和壁厚T c ，用以代替D, d, T 并满足8.4.1.4，10.2.2.2，11.3，11.8.1，11.9，11.11.4，12.1，表1及其注脚c ，表4，5，8，10，13，14的相关要求：w ww .b zf xw .c oD c = d+2T （1） D c = d min + （d min 容差 / 2）+2 T （2） d c = d min +（d min 容差 / 2） （3） T c = T min +（T min 容差 / 2） （4） 容差规定见表8，9，10。