牌号 |
化学成分(质量分数)/% |
||||||||
C |
Si |
Mn |
Ni |
V |
Nb |
Alt |
P |
S |
|
不大于 |
|||||||||
16MnDR |
≤0.20 |
0.15~0.50 |
1.20~1.60 |
- |
- |
- |
≥0.020 |
0.020 |
0.010 |
15MnNiDR |
≤0.18 |
0.15~0.50 |
1.20~1.60 |
0.20~0.60 |
≤0.06 |
|
≥0.020 |
0.020 |
0.008 |
15MnNiNbDR |
≤0.18 |
0.15~0.50 |
1.20~1.60 |
0.30~0.70 |
- |
0.015~0.040 |
- |
0.020 |
0.008 |
09MnNiDR |
≤0.12 |
0.15~0.50 |
1.20~1.60 |
0.30~0.80 |
- |
≤0.040 |
≥0.020 |
0.020 |
0.008 |
二、表2更改为新表:
表 2 力学性能、工艺性能