Q355NE圆钢性能 Q355NE圆钢化学成分 Q355NE圆钢现货
圆钢 | Q355NE | Φ20*6000 |
圆钢 | Q355NE | Φ22*6000 |
圆钢 | Q355NE | Φ25*6000 |
圆钢 | Q355NE | Φ28*6000 |
圆钢 | Q355NE | Φ30*6000 |
圆钢 | Q355NE | Φ30*6000 |
圆钢 | Q355NE | Φ32*6000 |
圆钢 | Q355NE | Φ32*6000 |
圆钢 | Q355NE | Φ35*6000 |
圆钢 | Q355NE | Φ35*6000 |
圆钢 | Q355NE | Φ36*6000 |
圆钢 | Q355NE | Φ38*6000 |
圆钢 | Q355NE | Φ40*6000 |
圆钢 | Q355NE | Φ45*6000 |
圆钢 | Q355NE | Φ48*6000 |
圆钢 | Q355NE | Φ50*3000-4000 |
圆钢 | Q355NE | Φ55*7800 |
圆钢 | Q355NE | Φ90*6000 |
圆钢 | Q355NE | Φ90*6000 |
圆钢 | Q355NE | Φ90*6000 |
圆钢 | Q355NE | Φ90*6000 |
圆钢 | Q355NE | Φ95*6000 |
圆钢 | Q355NE | Φ100*6000 |
圆钢 | Q355NE | Φ100*6000 |
圆钢 | Q355NE | Φ100*6000 |
圆钢 | Q355NE | Φ105*6000 |
圆钢 | Q355NE | Φ105*6000 |
圆钢 | Q355NE | Φ110*6000 |
圆钢 | Q355NE | Φ110*6000 |
圆钢 | Q355NE | Φ110*6000 |
圆钢 | Q355NE | Φ110*6000 |
圆钢 | Q355NE | Φ120*6000 |
圆钢 | Q355NE | Φ120*6000 |
圆钢 | Q355NE | Φ120*6000 |
圆钢 | Q355NE | Φ120*6000 |
圆钢 | Q355NE | Φ130*6000 |
圆钢 | Q355NE | Φ130*6000 |
圆钢 | Q355NE | Φ140*6000 |
圆钢 | Q355NE | Φ140*6000 |
圆钢 | Q355NE | Φ150*6000 |
圆钢 | Q355NE | Φ150*6000 |
圆钢 | Q355NE | Φ150*6000 |
圆钢 | Q355NE | Φ150*6000 |
圆钢 | Q355NE | Φ160*6000 |
圆钢 | Q355NE | Φ170*6000 |
圆钢 | Q355NE | Φ170*6000 |
圆钢 | Q355NE | Φ170*6000 |
圆钢 | Q355NE | Φ180*6000 |
圆钢 | Q355NE | Φ180*6000 |
圆钢 | Q355NE | Φ190*6000 |
圆钢 | Q355NE | Φ190*6000 |
圆钢 | Q355NE | Φ190*6000 |
圆钢 | Q355NE | Φ190*6000 |
圆钢 | Q355NE | Φ200*6000 |
圆钢 | Q355NE | Φ200*6000 |
圆钢 | Q355NE | Φ200*6000 |
圆钢 | Q355NE | Φ200*6000 |
圆钢 | Q355NE | Φ220*6000 |
圆钢 | Q355NE | Φ220*6000 |
圆钢 | Q355NE | Φ220*6000 |
圆钢 | Q355NE | Φ220*6000 |
圆钢 | Q355NE | Φ230*6000 |
圆钢 | Q355NE | Φ250*6000 |
圆钢 | Q355NE-BM | Φ210*6000 |
Q345A 含磷和硫都小于等于0.045%
Q345B 含磷和硫都小于等于0.040%
Q345C 含磷和硫都小于等于0.035%
Q345D 含磷和硫都小于等于0.030%
Q345E 含磷和硫都小于等于0.025%
而磷和硫杂质元素在钢中越多其冲击韧性就越差
Q345A - Q345B 20摄氏度时aKV不小于34
Q345C 0摄氏度时aKV不小于34
Q345D -20摄氏度时aKV不小于34
Q345E -40摄氏度时aKV不小于27
终其原因就是钢中的P和S杂质元素的减少才促使了低温下冲击韧性的提高.一个是Q345化学成分一个是Q345的力学性能.