标准编号：ISO 630-2:2021
中文名称：结构钢 第2部分：通用结构钢交货技术条件
英文名称：Structural steels — Part 2: Technical delivery conditions for structural steels for general purposes
发布日期：2021-04
标准范围
This document specifies qualities for steels for general structural use. This document applies to steel plates rolled on a reversing mill, wide flats, hot-rolled sections and bars, which are used in the as- delivered condition and normally intended for welded or bolted structures.
This document covers 8 steel grades and 4 qualities. Grades S235, S275, S355, and S460 are covered in Annex A. Grades SG205, SG250, SG285 and SG345 are covered in Annex B. Not all grades are available in all qualities, and some qualities have Charpy V-notch requirements.
The steels specified in this document are applicable to hot-rolled flat products and sections with:
— thicknesses ≥ 3 mm and ≤ 150 mm for long products of steel grade S460 all qualities;
— thicknesses ≥ 3 mm and ≤ 250 mm for long products or ≤ 400 mm for flat products of all other grades and qualities;
and no restriction on nominal thickness for grades SG205, SG250, SG285, and SG345 for flat products, sections and long products.
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