1 Scope
This Part specifies the terms and definitions, classification and codification, size, shape, weight, technical requirements, inspection and test, packaging, marking and quality certificate, etc. for cold-rolled high strength transformation induced plasticity steel sheets and strips (hereinafter referred to as "steel sheets and strips").
This Part is applicable to steel sheets and strips which are 0.50 mm~2.5 mm in thickness and mainly used for producing the structural and reinforcing parts of automobile.
2 Normative References
The following documents contain provisions which constitute provisions of this Part through reference in this text. For dated reference, subsequent amendments to (excluding the corrections), 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 223.5 Steel and Iron-Determination of Acid-Soluble Silicon and Total Silicon Content-Reduced Molybdosilicate Spectrophotometric Method
GB/T 223.9 Iron Steel and Alloy-Determination of Aluminium Content-Chrom Azurol S Photometric Method
GB/T 223.11 Iron Steel and Alloy-Determination of Chromium Content-Visual Titration or Potentiometric Titration Method
GB/T 223.23 Iron Steel and Alloy-Determination of Nickel Content-The Dimethylglyoxime Spectrophotometric Method
GB/T 20564.6-2010 The following standards are cited：
GB/T 20564.6-2010 Cited by the following standards：
