一般结构钢
1 一般用途碳钢
PN/H 84020 表一
化学成分(质量分数)/% | |||||||||
C<= | Si | Mn<= | P<= | S<= | Cr<= | Ni<= | Al>= | Cu<= | |
MSt5 | 0.26-0.37 | <=0.35 | 0.8 | 0.045 | 0.045 | | | | |
MSt6 | 0.38-0.49 | <=0.35 | 0.8 | 0.045 | 0.045 | | | | |
MSt7 | 0.5-0.62 | <=0.35 | 0.8 | 0.045 | 0.045 | | | | |
St0S | 0.23 | <=0.4 | 1.3 | 0.07 | 0.065 | | | | |
St3S | 0.22 | 0.1-0.35 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | 0.02 | 0.3 |
St3SCu | 0.22 | 0.1-0.35 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | 0.02 | 0.3 |
St3SCuX | 0.22 | <=0.07 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St3SCuY | 0.22 | <=0.15 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St3SX | 0.22 | <=0.07 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St3SY | 0.22 | <=0.15 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St3V | 0.2 | 0.1-0.35 | 1.2 | 0.045 | 0.045 | 0.3 | 0.3 | | 0.3 |
St3VX | 0.2 | <=0.07 | 1.2 | 0.045 | 0.045 | 0.3 | 0.3 | | 0.3 |
St3VY | 0.2 | <=0.15 | 1.2 | 0.045 | 0.045 | 0.3 | 0.3 | | 0.3 |
St3W | 0.17 | 0.1-0.35 | 1.3 | 0.035 | 0.035 | 0.3 | 0.3 | 0.02 | 0.3 |
St4S | 0.24 | 0.1-0.35 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St4SCu | 0.24 | 0.1-0.35 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St4SCuX | 0.24 | <=0.07 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St4SCuY | 0.24 | <=0.15 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St4SX | 0.24 | <=0.07 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St4SY | 0.24 | <=0.15 | 1.1 | 0.05 | 0.05 | 0.3 | 0.3 | | 0.3 |
St4V | 0.22 | 0.1-0.35 | 1.3 | 0.045 | 0.045 | 0.3 | 0.3 | | 0.3 |
St4VX | 0.22 | <=0.07 | 1.3 | 0.045 | 0.045 | 0.3 | 0.3 | | 0.3 |
St4VY | 0.22 | <=0.15 | 1.3 | 0.045 | 0.045 | 0.3 | 0.3 | | 0.3 |
St4W | 0.2 | 0.1-0.35 | 1.5 | 0.035 | 0.035 | 0.3 | 0.3 | 0.02 | 0.3 |
St5 | | | | 0.045 | 0.045 | | | | |
St6 | | | | 0.045 | 0.045 | | | | |
St7 | | | | 0.045 | 0.045 | | | | |
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