GB/T 20564.3-2017: Translated English of Chinese Standard. (GBT 20564.3-2017, GB/T20564.3-2017, GBT20564.3-2017): Continuously Cold Rolled High Strength Steel Sheet and Strip for Automobile - Part 3: High Strength Interstitial Free Steel
https://www.chinesestandard.net, Apr 23, 2018 - Technology & Engineering - 15 pages
This Part of GB/T 20564 specifies the terms and definitions, classification and grade expression method, ordering contents, dimension, appearance, weight, technical requirements, test methods, inspection rules, package, mark and quality certificate of cold rolled high strength interstitial free steel sheet and strip. This Part is applicable to the steel sheet and strip with thickness of 0.50mm ~ 3.00mm used for manufacturing automobile external and internal plates and partial structures.
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Dimension Appearance Weight
Method of Test
Package Mark and Quality Certificate
Appendix A Informative Chemical Compositions of Steel
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7.3.2 Steel sheet 7.6.2 The surface 8.2 The inspection Baoshan become rusty chemical compositions smelting Cold Rolled High Compositions of Steel compositions smelting analysis Continuously Cold Rolled date of production Edition end of uniform extension is less Handan High Strength Interstitial Huang Induced Plasticity Steel Interstitial Free Steel Jinhua less than 2.0mm Li Qian loading/unloading Mark and Quality Martensitic methods of steel negotiated when ordering Phase Steel Piece by piece/roll piece/batch 8.4 provisions of GB/T provisions of Table purchaser has special rate to measure refer to Appendix reference values relative-high surface requirements of FB Rolled High Strength Sampling Methods Sampling Quantities sheet and strip Shougang Shulin sides of steel specified in GB/T steel can refer Strain hardening index Strength Interstitial Free Strength Steel Sheet stretcher strain mark Strip for Automobile strip shall conform supplier shall guarantee Surface quality tensile strength Tensile test Test Methods uniform extension Xinyu yield strength