牌号
|
化学成分(%)
|
|||||||||
C
|
Si
|
Mn
|
S
|
P
|
Cr
|
Ni
|
Co
|
Cu
|
Mo
|
|
≤0.03
|
≤0.30
|
≤0.5
|
≤0.020
|
≤0.020
|
≤0.20
|
28.5-29.5
|
16.8-17.8
|
≤0.20
|
≤0.20
|