ISO 20805-2011 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

标准号：ISO 20805-2011
中文标准名称：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
英文标准名称：Hot-rolled steel sheet in coils of higher yield strength with improved formability and heavy thickness for cold forming
标准类型：H46
发布日期：2011/5/1 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：H46
国际标准分类号：77.140.50
引用标准：ISO 148-1;ISO 6892-1
适用范围：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.