牌号
|
C
|
Si
|
Mn
|
Cr
|
Mo
|
Ni
|
Nb
|
P
|
S
|
1Cr5Mo
|
≤0.15
|
≤0.50
|
≤0.60
|
4.00~6.00
|
0.45~0.60
|
≤0.60
|
----
|
≤0.030
|
≤0.020
|