GB/T 20887.1-2017E 汽车用高强度热连轧钢板及钢带 第1部分:冷成形用高屈服强度钢(英文版) Continuously hot rolled high strength steel sheet and strip for automobile -Part 1: High yield strength steel for cold forming
General Administration of Quality Supervision,Inspection and Quarantine of the Peoples Republic of China and Standardization Administration of the Peoples Republic of China
This part specifies the classification and designation, dimensions, shape, mass, technical requirements,test methods, inspection rules, packing, marking and inspection certificate of the continuously hot rolled high yield strength steel sheet and strip for cold forming.
This part is applicable to the products of continuously hot rolled high yield strength steel for cold forming, delivered in sheet, strip or slit strip type, hereinafter referred to as sheet and strip.