结构钢. 第4部分: 高产强度淬火和回火结构钢和宽扁钢的技术交货条件

[中文适用范围]： 本文件规定了高屈服强度淬火和回火结构钢的质量。 它适用于在可逆式轧机上轧制的钢板和宽扁钢，这些钢板和宽扁钢在淬火和回火条件下使用，通常用于焊接或螺栓结构。 本文件涵盖 10 个等级和 5 个品质。 附录 A 涵盖了 S460Q、S500Q、S550Q、S620Q、S690Q、S890Q 和 S960Q 牌号。 附录 B 涵盖了 SG460Q、SG500Q 和 SG700Q 牌号。 并非所有牌号都提供所有品质，有些品质具有夏比 V 型缺口要求。 本文件规定的钢材适用于 S460Q、S500Q、S550Q、S620Q 和 S690Q 牌号的最小公称厚度为 3 mm、最大公称厚度为 200 mm 的热轧扁钢产品，S620Q 和 S690Q 牌号的最大公称厚度为 125 mm。 牌号 S890Q 和 S960Q，牌号 SG460Q 和 SG500Q 的最大标称厚度为 100 毫米，牌号 SG700Q 的最大标称厚度为 150 毫米。 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，连续轧机扁轧产品； ——管材产品 — 参见 ISO TC 5/SC 1，钢管。 注 1：ISO/TC 17/SC 12 和 ISO/TC 5/SC 1 涵盖的标准列表可在 ISO 网站上获取。 注 2：在 ISO 630 的所有部分中，术语“厚度”均被视为“标称厚度”，除非另有说明。 [外文原描述]： This document specifies qualities for high-yield-strength quenched and tempered structural steels. It applies to steel plates and wide flats rolled on a reversing mill which are used in the quenched and tempered condition and normally intended for welded or bolted structures. This document covers 10 grades and 5 qualities. Grades S460Q, S500Q, S550Q, S620Q, S690Q, S890Q and S960Q are covered in Annex A. Grades SG460Q, SG500Q, and SG700Q 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 with a minimum nominal thickness of 3 mm and a maximum nominal thickness of 200 mm for grades S460Q, S500Q, S550Q, S620Q and S690Q, a maximum nominal thickness of 125 mm for grades S890Q and S960Q, a maximum nominal thickness of 100 mm for grades SG460Q and SG500Q and a maximum nominal thickness of 150 mm for grade SG700Q. 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.