摘要

选用Cu、Cr、Ni微合金化成分体系,采用热连轧控轧控冷工艺,精轧终轧温度845~875℃,卷取温度585~615℃生产的8 mm耐候结构钢Q355NHC (/%:0.068C,0.18Si,1.17Mn,0.010P,0.006S,0.35Cu,0.21Ni,0.49Cr)带材力学性能为:屈服强度463.6 MPa,抗拉强度552.3 MPa,延伸率28.7%,-20℃V-型缺口冲击功251~256 J,各项质量指标均满足标准要求。

  • 单位
    内蒙古包钢钢联股份有限公司