GB/T 20887.1-2017 Translated English of Chinese Standard. (GBT 20887.1-2017, GB/T20887.1-2017, GBT20887.1-2017): Continuously Hot Rolled High Strength Steel Sheet and Strip for Automobile - Part 1: High Yield Strength Steel for Cold Forminghttps://www.chinesestandard.net, 23 apr. 2018 - 14 sidor This Part of GB/T 20887 specifies the classification and grade expression method, ordering contents, dimension, appearance, weight, technical requirements, test methods, inspection rules, package, mark and quality certificate of hot rolled high yield strength steel sheet and strip for cold forming. |
Innehåll
| 3 | |
Scope | 5 |
Classification and Grade Expression Method | 7 |
Ordering Contents | 8 |
Test Methods | 11 |
Inspection Rules | 12 |
Foreign Grades | 13 |
Forming | 14 |
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Analysis of Iron Approximate Comparison batch Bend Test Blue Spectrophotometric Method Chemical Analysis chemical compositions Cold Forming Comparison between Domestic Composition of Steel Content GB/T Continuously Hot Rolled defects dimension Grade and Chemical Grade Expression Method High Strength Steel High Yield Strength Hot Rolled High hot rolled pickled Impact Test Induction Furnace inspection document Inspection Items Low-Alloy Steel mark and quality Mechanical and Process Metallic Materials Method after Combustion Methods for Chemical methods of steel Package permissible tolerance Phosphomolybdate Blue Spectrophotometric Piece by piece/roll provisions of GB/T provisions of Table quality certificate Rolled High Strength rolled pickled surface Sampling Methods Sampling Quantities sheet and strip Spectrophotometric Method GB/T Steel and Alloy Steel and Iron Steel and Steel Steel for Cold steel strip Strength Steel Sheet Strip for Automobile strip for cold strip shall conform Strips GB/T supplier Surface Quality Levels Tensile Test Test GB/T Test Methods Yield Strength Steel