55SiMnVB 化學(xué)成份
元素
|
C
|
Si
|
Mn
|
S |
P
|
Cr
|
Ni | Cu | V | B |
含量
|
0.52~0.60
|
0.70~1.00
|
1.00~1.30
|
≤0.035 |
≤0.035
|
≤0.35 | ≤0.35 | ≤0.25 | 0.08~0.16 | 0.0005~0.0035 |