标准编号：ISO 20805:2011
中文名称：冷成型用改进成型性能和大厚度、高屈服强度的成卷热轧钢板
英文名称：Hot-rolled steel sheet in coils of higher yield strength with improved formability and heavy thickness for cold forming
发布日期：2011-05
标准范围
1.1 This International Standard applies to continuous hot-rolled steel sheet of higher yield strength withimproved formability. The steel is killed, made according to a fine-grain practice and has a suitable chemicalcomposition, which includes microalloying elements, to provide improved formability. The steel can be treatedto achieve inclusion control. The product is intended for applications where parts are to be fabricated requiringbetter formability than is provided by normal high-yield-strength steel sheet. It is generally used in the asdeliveredcondition. This product is commonly produced on a wide strip mill.Because of the combination of higher strength and improved formability, it is possible to obtain savings inmass along with better weldability (see 4.4).1.2 This product is commonly produced in the range of thicknesses greater than 6 mm to 25 mm, andwidths of 600 mm and over, in coils. Hot-rolled sheet less than 600 mm wide can be slit from wide sheet andwill be considered as sheet.1.3 This International Standard does not cover steels intended for boilers or pressure vessels, or steelsdesignated as commercial quality, drawing quality or structural quality, or steels rolled to cold-reducedproducts, or steels designated as weathering steels, having increased atmospheric corrosion resistance, orthose products rolled on a plate mill.
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