This standard specifies the classification, code, dimension, shape, weight, technical requirements, test, inspection, packaging, marking and quality certificate etc. of cold-rolled spring and tool steel strips.
This standard is applicable to the manufacture of products like spring, tool and measuring tap as well as cold-rolled spring and tool steel strips with rolling width less than 600mm.
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 any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies.
GB/T 222-1984 Method of Sampling Steel for Determination of Chemical Composition and Permissible Variations for Product Analysis
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 223.9 Methods for Chemical Analysis of Iron, Steel and Alloy - The Chrome Azurol S Photometric Method for the Determination of Aluminium 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 223.14 Methods for Chemical Analysis of Iron, Steel and Alloy - The N-Benzoyl-N-Phenylhydroxylamine Extraction Photometric Method for the Determination of Vanadium Content
GB/T 223.16 Methods for Chemical Analysis of Iron, Steel And Alloy - The Chromotropic Acid Photometric Method for the Determination of Titanium 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 223.23 Methods for Chemical Analysis of Iron, Steel and Alloy - The Dimethylglyoxime Spectrophotometric Method for the Determination of Nickel Content
GB/T 223.24 Methods for Chemical Analysis of Iron, Steel and Alloy - The Extraction Separation - The Dimethylglyoxime Spectrophotometric Method for the Determination of Nickel Content
GB/T 223.26 Methods for Chemical Analysis of Iron Steel and Alloy - The Thiocyanate Direct Photometric Method for the Determination of Molybdenum Content
GB/T 223.27 Methods for Chemical Analysis of Iron, Steel and Alloy - The Thiocyanate-butyl Acetate Extraction Spectrophotometric Method for the Determination of Molybdenum Content
GB/T 223.39 Methods for Chemical Analysis Iron, Steel And Alloy - The Sulfochlorophenol S Photometric Method for the Determination of Niobium Content
