GB/T 20564.11-2017 Translated English of Chinese Standard. (GBT 20564.11-2017, GB/T20564.11-2017, GBT20564.11-2017): Continuously Cold Rolled High Strength Steel Sheet and Strip for Automobile - Part 11: Carbon Manganese Steel
https://www.chinesestandard.net, 17. nov. 2017 - 13 sider
This Part of GB/T 20564 specifies the terms and definitions, classification and grade expression method, ordering content, dimension, shape, weight, technical requirements, test methods, inspection rules, package, marking and quality certificate of cold rolled carbon manganese high strength steel sheet and strip.
This Part is applicable to the steel sheet and strip with thickness of 0 50mm 3 00mm
Package Marking and Quality Certificate
Appendix A Informative Chemical Compositions of Steel
7.5 Welding 7.6 Surface quality 7.6.1 The surface 7.6.2 The quality 7.7 Surface structure 8.2 The inspection 9 Inspection Rules absolute value appropriate welding process Characteristics Levels Codes chemical compositions Codes Characteristics Relative Compositions of Steel deliver with defects Elongation after break FB One better FC clearly visible forming high-level performance Grade Upper yield greater than 30t Levels Codes Characteristics Marking and Quality Mass Fraction Method of Steel negotiated when ordering oil painting P6 specimen piece/roll by roll plastic extension strength provisions of GB/T provisions of Table purchaser has special Quality Certificate Relative The surface requirement ofFB 7.6.3 Sampling Quantity sheet and strip slight scratches Smelting specified plastic extension specimen in GB/T standard grades steel sheet steel strip strength of Rp0.2 strip shall conform surface of steel Surface quality 7.6.1 Surface Quality Levels Table 5 Surface Table A.1 Tensile Test Grade Test Grade Upper welding process based Welding The users