结构钢. 第2部分: 结构钢通用目的技术交货条件

[中文适用范围]： 本文件规定了一般结构用钢材的质量。本文件适用于在可逆式轧机上轧制的钢板、宽扁钢、热轧型钢和钢筋，这些钢材在交货状态下使用，通常用于焊接或螺栓结构。本文件涵盖 8 个钢材等级和 4 个质量。S235、S275、S355 和 S460 等级在附录 A 中涵盖。SG205、SG250、SG285 和 SG345 等级在附录 B 中涵盖。并非所有等级的所有质量都可用，某些质量有夏比 V 型缺口要求。本文件中规定的钢材适用于具有以下质量的热轧扁平材和型钢： — 所有质量的 S460 钢材等级的长材厚度 ≥ 3 毫米且 ≤ 150 毫米； — 所有其他等级和质量的长材厚度 ≥ 3 毫米且 ≤ 250 毫米或扁平材厚度 ≤ 400 毫米；对于扁平材、型材和长材，SG205、SG250、SG285 和 SG345 级的公称厚度没有限制。本文件不包括以下结构钢，其中一些由其他国际标准涵盖： — 薄板和带材：参见 ISO TC 17/SC 12“连续轧机扁平轧制产品”； — 管材：参见 ISO TC 5/SC 1“钢管”。注 1 注 2 注明。ISO/TC 17/SC 12 和 ISO/TC 5/SC 1 涵盖的标准清单可在 ISO 网站上找到。在 ISO 630 的所有部分中，“厚度”一词均视为“公称厚度”，除非另有说明 [外文原描述]： 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. This document does not include the following structural steels, some of which are covered by other International Standards: — sheet and strip: refer to ISO TC 17/SC 12 “Continuous mill flat rolled products”; — tubular products: refer to ISO TC 5/SC 1 “Steel tubes”. NOTE 1 Lists of standards covered by ISO/TC 17/SC 12 and ISO/TC 5/SC 1 are available on the ISO website. NOTE 2 In all parts of ISO 630, the term of "thickness" is considered as "nominal thickness", unless otherwise stated.