The tensile strength,yield strength and notch toughness of Q420 angle steel produced by V-N interalloying method were improved evidently and integration properties were better.
英
美
- 采用加入V-N中间合金方法生产的Q420角钢的抗拉强度、屈服强度和冲击韧性明显提高,具有较好的综合性能。