GB/T 20564.1-2017 Translated English of Chinese Standard. (GBT 20564.1-2017, GB/T20564.1-2017, GBT20564.1-2017): Continuously Cold Rolled High Strength Steel Sheet and Strip for Automobile - Part 1: Bake Hardening Steel
https://www.chinesestandard.net, 23.04.2018 - 15 Seiten
This Part of GB/T 20564 specifies the terms and definitions, classification and grade expression method, dimension, shape, weight, technical requirements, test methods, inspection rules, package, marking and quality certificate of cold rolled bake hardening high strength steel sheet and strip.
Dimension Appearance Weight
Method of Test
Package Mark and Quality Certificate
Appendix A Informative Chemical Compositions of Steel
7.3.1 Steel sheet Bake Hardening Steel Bake Hardening Value Baoshan become rusty chemical compositions smelting Cold Rolled High completion date compositions smelting analysis Continuously Cold Rolled defects dimension and roughness Edition Handan Hardening Value BH2 Induced Plasticity Steel initial of Bake initial of Cold inspection batch Inspection Items Jinhua less than 2.0mm Li Qian Liu Jun loading/unloading Martensitic methods of steel minimum yield strength negotiated when ordering Piece by piece/roll piece/batch GB/T piece/roll by roll provisions of GB/T provisions of Table purchaser has special refer to Appendix relative-high surface requirements of FB Rolled High Strength roughness accuracy Sampling Methods Sampling Quantities sheet and strip Shougang Shulin specified in GB/T specified minimum yield steel can refer Strain hardening index Strength Steel Sheet stretcher strain mark Strip for Automobile strip shall conform supplier shall guarantee Surface quality levels Surface Structure Code tensile strength Tensile test Test Methods uniform extension Wang Yue