结构用铌钒低合金高强度热轧型钢标准浅析  

Analysis of standards for high-strength low-alloy niobium-vanadium hot rolled structural steel section

作　　者：徐昊驰 Xu Haochi(China Metallurgical Information and Standardization Institute,Beijing 100730,China)

机构地区：[1]冶金工业信息标准研究院,北京100730

出　　处：《冶金标准化与质量》2024年第5期1-3,共3页Metallurgical Standardization & Quality

摘　　要：本文针对结构用铌钒低合金高强度热轧型钢的技术条件和尺寸标准进行了全面解析。文章首先介绍了钢结构建筑在国内的发展现状以及面临的挑战,进而阐述了《结构用铌钒低合金高强度热轧型钢》标准的制定背景和重要性。在技术条件解析部分,本文详细分析了该型钢的化学成分、力学性能指标、尺寸规格及其允许偏差,并对不同钢级和质量等级的要求进行了明确。此外,本文还重点探讨了铌、钒、钛等微合金化元素在提高型钢性能方面的作用,以及这些元素在焊接热影响区性能提升中的重要性。This comprehensive study delves into the technical specifications and dimensional criteria of niobium-vanadium low-alloy,high-strength hot-rolled section steel used in structural applications.The paper initially outlines the status quo and challenges of steel structure construction in China,underlining the importance and background of the standardization for such advanced steel materials.It meticulously analyzes the chemical composition,mechanical attributes,and dimensional accuracy of the steel,including permissible deviations,and addresses the distinct requirements for different steel grades and quality classifications.The research also underscores the importance of microalloying elements,particularly niobium and vanadium,in boosting the steel's performance and their influence on enhancing the properties of the welding heat-affected zone.

关 键 词：铌钒低合金 高强度 热轧型钢 标准解析 

分 类 号：TG335.4[金属学及工艺—金属压力加工]