1.1 本规范涵盖热轧和冷轧拉拔合金钢板和钢带。这种质量的材料主要用于涉及严重冷塑性变形的应用，如深冲或严重成形零件。这种钢是通过严格控制的炼钢实践生产的，旨在确保内部坚固性、化学成分的相对均匀性和无有害缺陷。 1.2 本规范涵盖的材料可按本文规定的几种条件、热处理、表面光洁度和边缘以卷或切割长度提供。 1.3 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 This specification covers hot-rolled and cold-rolled drawing alloy-steel sheet and strip. Material of this quality is produced principally for applications involving severe cold plastic deformation such as deep drawn or severely formed parts. This steel is produced by a closely controlled steel-making practice designed to assure internal soundness, relative uniformity of chemical composition, and freedom from injurious imperfections. 1.2 The material covered by this specification may be furnished in several conditions, heat treatments, surface finishes, and edges, as specified herein, in coils or cut lengths. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.