冷镦钢的牌号及化学成分 ( 摘自 GB / T6478 — 1986 )
|
牌号 |
化学成分 ( 质量分数 ), % |
||||||||
|
C ( 碳 ) |
Si ( 硅 ) |
Mn ( 锰 ) |
Cr ( 铬 ) |
B ( 硼 ) |
Mo ( 钼 ) |
P ( 磷 ) |
S ( 硫 ) |
其他 |
|
|
ML08 |
0 . 05 ~ 0 . 12 |
≤ 0 . 03 |
0 . 20 ~ 0 . 50 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML10 |
0 . 07 ~ 0 . 14 |
≤ 0 . 03 |
0 . 20 ~ 0 . 50 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML15 |
0 . 12 ~ 0 . 19 |
≤ 0 . 07 |
0 . 20 ~ 0 . 50 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML20 |
0 . 17 ~ 0 . 24 |
≤ 0 . 07 |
0 . 20 ~ 0 . 50 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML25 |
0 . 22 ~ 0 . 30 |
≤ 0 . 20 |
0 . 30 ~ 0 . 60 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML30 |
0 . 27 ~ 0 . 35 |
≤ 0 . 20 |
0 . 30 ~ 0 . 60 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML35 |
0 . 32 ~ 0 . 40 |
≤ 0 . 20 |
0 . 30 ~ 0 . 60 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML40 |
0 . 37 ~ 0 . 45 |
≤ 0 . 20 |
0 . 30 ~ 0 . 60 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML45 |
0 . 42 ~ 0 . 50 |
≤ 0 . 20 |
0 . 30 ~ 0 . 60 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML25Mn |
0 . 22 ~ 0 . 30 |
≤ 0 . 25 |
0 . 50 ~ 0 . 80 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML30Mn |
0 . 27 ~ 0 . 35 |
≤ 0 . 25 |
0 . 50 ~ 0 . 80 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML35Mn |
0 . 32 ~ 0 . 40 |
≤ 0 . 25 |
0 . 50 ~ 0 . 80 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML40Mn |
0 . 37 ~ 0 . 45 |
≤ 0 . 25 |
0 . 50 ~ 0 . 80 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML45Mn |
0 . 42 ~ 0 . 50 |
≤ 0 . 25 |
0 . 50 ~ 0 . 80 |
— |
— |
— |
≤ 0 . 035 |
— |
|
|
ML15Cr |
0 . 12 ~ 0 . 18 |
≤ 0 . 30 |
0 . 40 ~ 0 . 70 |
0 . 70 ~ 1 . 00 |
— |
— |
≤ 0 . 035 |
— |
|
|
ML20Cr |
0 . 17 ~ 0 . 24 |
≤ 0 . 30 |
0 . 50 ~ 0 . 80 |
0 . 70 ~ 1 . 00 |
— |
— |
≤ 0 . 035 |
— |
|
|
ML40Cr |
0 . 37 ~ 0 . 44 |
≤ 0 . 30 |
0 . 50 ~ 0 . 80 |
0 . 80 ~ 1 . 10 |
— |
— |
≤ 0 . 035 |
— |
|
|
ML15MnB |
0 . 14 ~ 0 . 20 |
≤ 0 . 30 |
1 . 20 ~ 1 . 60 |
— |
0 . 0005 ~ 0 . 0035 |
— |
≤ 0 . 035 |
V : ≤ 0 . 12 |
|
|
ML15MnVB |
0 . 12 ~ 0 . 18 |
≤ 0 . 30 |
1 . 20 ~ 1 . 60 |
— |
0 . 0005 ~ 0 . 0035 |
— |
≤ 0 . 035 |
V : 0 . 07 ~ 0 . 12 |
|
|
ML20MnTiB |
0 . 17 ~ 0 . 24 |
≤ 0 . 30 |
1 . 30 ~ 1 . 60 |
— |
0 . 0005 ~ 0 . 0035 |
— |
≤ 0 . 035 |
Ti : 0 . 04 ~ 0 . 10 |
|
|
ML30CrMo |
0 . 26 ~ 0 . 34 |
≤ 0 . 30 |
0 . 40 ~ 0 . 70 |
0 . 80 ~ 1 . 10 |
— |
0 . 15 ~ 0 . 25 |
≤ 0 . 035 |
— |
|
|
ML35CrMo |
0 . 32 ~ 0 . 40 |
≤ 0 . 30 |
0 . 40 ~ 0 . 70 |
0 . 80 ~ 1 . 10 |
— |
0 . 15 ~ 0 . 25 |
≤ 0 . 035 |
— |
|
|
ML42CrMo |
0 . 38 ~ 0 . 45 |
≤ 0 . 30 |
0 . 50 ~ 0 . 80 |
0 . 90 ~ 1 . 2 |
— |
0 . 15 ~ 0 . 25 |
≤ 0 . 035 |
— |
|
