结构钢 第6部分：建筑用抗震改进结构钢交货技术条件

[中文适用范围]： 本文件规定了抗震改进结构用途的钢材质量。它适用于在可逆式轧机上轧制的钢板、宽扁钢、热轧型材，这些钢材在轧制状态下使用，但 SA440 级除外，该级通常采用淬火回火或热机械控制工艺生产，通常用于焊接或螺栓结构。本文件涵盖 5 个钢种和 7 个质量。涵盖 SA235、SA325、SA345、SA390 和 SA440 级。并非所有等级都具有所有质量，并且某些质量具有夏比 V 型缺口要求。本文件中规定的钢材适用于热轧板、宽扁钢和型材，钢板的最小公称厚度为 6 毫米，最大公称厚度为 150 毫米，宽扁钢和热轧型材的最大公称厚度为 140 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，例如 ISO 4995 或 ISO 4996； — 管材产品。例如 ISO 12633-1、ISO 12633-2。 注：除非另有说明，否则术语“厚度”被视为“公称厚度”。 [外文原描述]： This document specifies qualities for steels for seismic-proof improved structural use. It is applicable to steel plates rolled on a reversing mill, wide flats, hot-rolled sections, which are used in the as-rolled condition, with the exception of grade SA440, which is normally produced using quenched and tempered or thermomechanical controlled process and normally intended for welded or bolted structures. This document covers 5 steel grades and 7 qualities. Grades SA235, SA325, SA345, SA390 and SA440 are covered. 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 plates, wide flats, and sections with a minimum nominal thickness of 6 mm and a maximum nominal thickness of 150 mm for steel plates, and a maximum nominal thickness of 140 mm for wide flats and hot-rolled sections. This document does not include the following structural steels, some of which are covered by other International Standards: — sheet and strip, e.g. ISO 4995 or ISO 4996; — tubular products. e.g. ISO 12633-1, ISO 12633-2. NOTE The term "thickness" is considered as "nominal thickness", unless otherwise stated.