化学成分
|
C
|
S i
|
Mn
|
P
|
S
|
Mo
|
Cr
|
Nb
|
Ni
|
B
|
|
≦0.12
|
0.15~0.40
|
≤0.18
|
≤0.030
|
≤0.015
|
0.10~0.50
|
≤0.50
|
0.02~0.08
|
|
≤0.005
|
