冷轧用改进可成形性和特厚较高屈服强度的热轧薄钢板卷材

[中文适用范围]： 本文件适用于具有较高屈服强度、改善成型性和冷成型厚厚度的连续热轧钢板卷。 可以对钢进行处理以实现夹杂物控制。 通常在交付状态下使用。 由于更高的强度和改进的可成形性相结合，可以节省质量并获得更好的可焊性。 该产品适用于需要比普通高屈服强度钢板具有更好成形性的零件制造应用。 该钢板有多种牌号，旨在满足不同的应用要求。 本文件不适用于 — 用于锅炉或压力容器的钢材， — 指定为商业质量、拉拔质量或结构质量的钢材， — 轧制成冷轧产品的钢材， — 指定为耐候钢的钢材，具有增强的耐大气腐蚀性能，或者——那些在板材轧机上轧制的产品。 [外文原描述]： ISO 20805:2017 is applicable to continuous hot-rolled steel sheet in coils of higher yield strength with improved formability and heavy thickness for cold forming. The steel can be treated to achieve inclusion control. It is generally used in the as-delivered condition. As a result of the combination of higher strength and improved formability, it is possible to obtain savings in mass along with better weldability. The product is intended for applications where parts are to be fabricated requiring better formability than is provided by normal high-yield-strength steel sheet. The steel sheet is produced in a number of grade designations designed to be compatible with differing application requirements. ISO 20805:2017 does not apply to - steels intended for boilers or pressure vessels, - steels designated as commercial quality, drawing quality or structural quality, - steels rolled to cold-reduced products, - steels designated as weathering steels, having increased atmospheric corrosion resistance, or - those products rolled on a plate mill.