1. Scope
This standard specifies the dimension, appearance, weight and allowable deviation, technical requirements, test methods, test rules and mark, package, transportation, reposition as well as the Certification of Quality for the cold-rolled sheets and strips of carbon structural steels.
This standard is applicable to the cold-rolled sheets and strips of carbon structural steels whose thickness is not be greater than 3mm and width is not be less than 600mm. The single cold-rolled sheet may also refer to it and be implemented.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrigenda), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this standard.
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.3 Methods for chemical analysis of iron, steel and alloy; The diantipyrylmethane phosphomolybdate gravimetric method for the determination of phosphorus content
GB/T 223.10 Methods for chemical analysis of iron, steel and alloy－The cupferron separation-chrome azurol S photometric method for the determination of aluminium content
GB/T 223.11 Methods for chemical analysis of iron,steel and alloy The ammonium persulfate oxidation volumetric method for the determination of chromium content
GB/T 223.18 Methods for chemical analysis of iron, steel and alloy The sodium thiosulfate separation iodimetric method for the determination of copper content
GB/T 223.19 Methods for chemical analysis of iron steel and alloy; The neocuproine-chloroform extraction photometric method for the determination of copper content
