C
|
Si
|
Μn
|
Cr
|
W
|
V
|
P
|
S
|
0.32~0.42
|
0.80~1.20
|
≤0.04
|
4.50~5.50
|
1.60~2.40
|
0.60~1.00
|
≤0.30
|
≤0.30
|
项目
|
加热温度/℃
|
开锻温度/℃
|
终锻温度/℃
|
冷却方式
|
钢坯
|
1140~1180
1100~1150
|
1100~1150
1080~1120
|
925~900
900~850
|
缓冷(砂冷或坑冷)
缓冷(砂冷或坑冷)
|
临界点
|
Ac1
|
Ac3
|
Ar1
|
Ar3
|
Ms
|
Mf
|
温度(近似值)/℃
|
800
|
875
|
730
|
840
|
275
|
90
|
温度/℃
|
22~100
|
22~200
|
22~500
|
22~600
|
线(膨)胀系数/℃
|
7.6×10
|
8.7×10
|
11.6×10
|
12×10
|
温度/℃
|
20
|
100
|
200
|
300
|
400
|
500
|
600
|
弹性模量E/MPa
|
230000
|
226000
|
210000
|
210000
|
203000
|
192000
|
178000
|
Tel: