This standard specifies the terms and definitions, classification and code, dimension, dimensional tolerance, shape requirements, dimension and shape measurement, weight and numerical rounding of cold-rolled steel sheets and strips.
This standard is applicable to cold-rolled wide strip with a rolled width of not less than 600 mm, slit wide strip and sheet cut from strip (hereinafter referred to as steel sheets and steel strips). A single cold-rolled steel sheet can also be carried out as above.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
wide strip
steel strip with a rolled width of not less than 600 mm and delivered in rolls
3.2
slit wide strip
formed by slit wide of wide strip and delivered in rolls
3.3
sheet cut from strip
formed by cutting from strip and delivered in shapes
3.4
plate
cold-rolled flat steel with directly rolled and not fixed edge deformation
4 Classification and code
4.1 The classification and code are as follows based on the edge state:
