50 mm低合金高强度结构钢Q460NC的生产实践  

Development of 50 mm Thick Q460NC with Low Alloy High Strength Structural Steel

作　　者：张仁琳 Zhang Renlin(Fujian Sansteel(Group)Co.,Ltd.,Sanming 365000,Fujian)

机构地区：[1]福建三钢(集团)有限责任公司中板厂,福建三明365000

出　　处：《福建冶金》2024年第5期28-31,共4页Fujian Metallurgy

摘　　要：通过合理的成分设计和严格的加热、TMCP轧制工艺控制,充分利用细晶强化、析出强化等手段,保障了TMCP交货状态的50 mm厚Q460NC钢板的成功研发。钢板晶粒细小、性能稳定,屈服强度达到450 MPa~510 MPa,抗拉强度达到590 MPa~645 MPa,延伸率达到25%以上,板形及表面质量良好。Through reasonable composition design,strict heating,TMCP plate,making full use of fine grain strengthening,precipitation strengthening and other means,to ensure the delivery of TMCP 50 mm Q460NC steel successful development.The steel plate has fine grain,stable performance,yield strength 450 MPa~510 MPa,tensile strength 590 MPa~645 MPa,elongation over 25%,good shape and surface quality.

关 键 词：低合金高强度结构钢 TMCP 板形控制 

分 类 号：TG142.33[一般工业技术—材料科学与工程]