This standard specifies the scope, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of cold-formed steel. This standard applies to cold-rolled or hot-rolled steel sheets and strips that can be deformed by cold working on continuous roll cold-bending units. This standard does not apply to steel sections produced by drawing, stamping, bending, etc.
GB/T 6725-2002 history
2017GB/T 6725-2017 General requirements of cold forming steel sections