对178 mmEH690钢的拉伸性能进行检测分析。结果表明,该钢的屈服强度由782 MPa降至750 MPa,抗拉强度由852 MPa降至830 MPa。t/2的强度最低,延伸率最低为18.0%,断面收缩率最低为70%。
The tensile properties of 178mm EH690 steel were tested and analyzed. The results show that the yield strength of the steel is reduced from 782 MPa to 750 MPa, and the tensile strength is reduced from 852 MPa to 830 MPa. T/2 has the lowest strength, the lowest elongation is 18.0%, and the lowest section shrinkage is 70%.