q390c板材价格
化学成分含量
等级 | c | mn | si | p | s | v | nb | ti | al | cr | ni |
a | ≤0.20 | 1.00~1.60 | ≤0.55 | ≤0.045 | ≤0.045 | 0.02~0.20 | 0.015~0.060 | 0.02~0.20 | - | ≤0.30 | ≤0.70 |
b | ≤0.20 | 1.00~1.60 | ≤0.55 | ≤0.040 | ≤0.040 | 0.02~0.20 | 0.015~0.060 | 0.02~0.20 | - | ≤0.30 | ≤0.70 |
c | ≤0.20 | 1.00~1.60 | ≤0.55 | ≤0.035 | ≤0.035 | 0.02~0.20 | 0.015~0.060 | 0.02~0.20 | ≥0.015 | ≤0.30 | ≤0.70 |
d | ≤0.20 | 1.00~1.60 | ≤0.55 | ≤0.030 | ≤0.030 | 0.02~0.20 | 0.015~0.060 | 0.02~0.20 | ≥0.015 | ≤0.30 | ≤0.70 |
e | ≤0.20 | 1.00~1.60 | ≤0.55 | ≤0.025 | ≤0.025 | 0.02~0.20 | 0.015~0.060 | 0.02~0.20 | ≥0.015 | ≤0.30 | ≤0.70 |