C
|
Si
|
Mn
|
W
|
Mo
|
Cr
|
V
|
S
|
P
|
0.77~0.85
|
0.20~0.40
|
0.20~0.40
|
8.50~9.50
|
2.70~3.30
|
3.60~4.20
|
1.30~1.60
|
≤0.030
|
≤0.030
|