常用材料化学成分表

合 金
42CrMo4 0.38～0.45
≤0.40 0.60～ 0.90
≤0.035
≤0.035 0.90～ 1.20
钢
20Mn5 0.17-0.23 ≤0.6 1.0-1.5 ≤0.025 ≤0.025 ≤0.3
0.15～0.30 600 800-950 12
≤0.15
300 500-650 22
牌号
C
Si
Mn
S
QT400-18 3.6-3.9 2.2-2.8 ≤0.5 ≤0.08
QT400-15 3.5-3.9 2.5-2.9 ≤0.5 ≤0.07
QT450-10 3.4-3.9 2.2-2.8 ≤0.5 ≤0.07
球 QT500-7 3.6-3.8 2.5-2.9 ≤0.6
≤0.08
铁 QT600-3 3.6-3.8 2.0-2.4 0.5-0.7 ≤0.08
250
400
18
250
400
15
310
450
10
320
500
7
370
600
3
420
700
2
480
800
2
600
900
2
100
150
200
250
300
350
200
400
230
450
270
500
310
570
340
640
26CrMo4 0.22-0.29 0-0.6 0.5-0.8 <0.03 <0.025 0.8-1.2
<0.3 <0.2 ≤0.15 ≤0.15 ≤0.15 ≤0.15 ≤0.04 ≤0.04 ≤0.04 ≤0.04 ≤0.04
Cr
Ni
Mo
0.04-0.06
0.04-0.06
0.03-0.06
0.03-0.05
0.035-0.05
0.0350.065 0.03-0.05
0.03-0.05
σs
σb δ %
铸 ZG230-450 0.2-0.3 0.2-0.5 0.5-0.9
造 碳
ZG270-500
0.3-0.4
0.2-0.5
钢 ZG310-570 0.4-0.5 0.2-0.6
≤0.04 ≤0.04 ≤0.04
ZG340-640 0.5-0.6 0.2-0.6
≤0.04
P ≤0.025 ≤0.03 ≤0.02 ≤0.025 ≤0.025 ≤0.03 ≤0.02 ≤0.025
0.15-0.3 550 700-850 10
铸
35CrMo
0.32-0.4
0.170.37
0.4-0.7 <0.035
<0.035 0.8-1.1
0.15-0.25 835
985
12
造 39NiCrMo3 0.35-0.43 ≤0.40 0.5-0.8 0.6-1.0 0-0.025 0.6-0.9 1.25-1.65 0.15-0.25 785 980-1180 11
GS 45
≤0.25
≤0.6 0.2-0.5 ≤0.04 ≤0.04
230
450
22
碳 A3 (Q235A) 0.14-0.22
钢
#45
0.42~0.50
0.12-0.3 0.3-0.65
0.17~0.37 0.50~0.80
≤0.050 ≤0.045
≤0.045 ≤0.040
≤0.030 ≤0.25
ቤተ መጻሕፍቲ ባይዱ
铸 铝
A356 ≤0.2
6.5-7.5 ≤0.1 0.25-0.45 ≤0.2
≤0.1
6061
0.15-0.4 0.4-0.8 ≤0.15 0.8～1.2
0.7
0.25
≤0.3
55.2
124
25
A380
3.0-4.0 7.5-9.5 ≤0.5
≤0.1
≤1.3
≤3.0
≤0.5
160
320
3.5
ψ%
HB
HRC
130-180
130-180
160-210
170-230
190-270
225-305
245-335
280-360
45
≤229
58-62
≤217
≤187
40
≤0.030 ≤0.25
235 370～500 26
355
600
17
钢
不 锈
304
0-0.08
0-2.0
0-1.5
≤0.040 ≤0.040 18-21
8.0-11.0
牌号
Cu
Si
Mn
Mg
Fe
Zn
Ni
Sn
σs
σb δ %
ADC12
1.5-3.5 9.6-12 ≤0.5
≤0.3
≤1.3
≤1.0
≤0.5
灰
HT200
3.0-3.6 1.4-2.2 0.8-1.0 ≤0.12
铁
HT250
2.9-3.5 1.4-2.1 0.7-1.1 ≤0.12
HT300 2.8-3.4 1.3-1.8 0.8-1.2 ≤0.12
HT350 2.7-3.2 1.1-1.7 0.9-1.4 ≤0.12
ZG200-400 0.1-0.2 0.2-0.5 0.35-0.8 ≤0.04
QT700-2 3.7-4.0 2.3-2.6 0.5-0.8 ≤0.08
QT800-2 3.7-4.0 2.5
≤0.5 ≤0.17
QT900-2 3.5-3.7 2.7-3.0 ≤0.5 ≤0.08
HT100 3.2-3.8 2.1-2.7 0.5-0.8 ≤0.15
HT150 3.0-3.7 1.8-2.4 0.5-0.8 ≤0.12