化学成分
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Mo
|
N
|
标准
|
≤0.03
|
≤1.00
|
≤2.00
|
≤0.04
|
≤0.03
|
21.0~24.0
|
4.5~6.5
|
2.5~3.5
|
0.08~0.2
|
一般
|
0.025
|
0.6
|
1.5
|
0.026
|
0.001
|
22.5
|
5.8
|
3.0
|
0.16
|
区分
|
力学性能
|
备注
|
||
Ys (Mpa)
|
Ts (Mpa)
|
El (%)
|
Hv
|
2.0t/2B
|
≥ 450
|
≥ 620
|
≥ 25%
|
≥ 18
|
≤ 320
|
500
|
670
|
35%
|
27
|
280
|
密度
(g/cm)
|
磁性
|
比热
(J/g.C)
|
热导率
100C(W/m.
|
热膨胀率
20~100C
(10/C)
|
7.8
|
有
|
0.45
|
19.0
|
13.7
|
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