GB/T 20887.5-2022 Translated English of Chinese Standard (GB/T20887.5-2022, GBT 20887.5-2022): Continuously hot rolled high strength steel sheet and strip for automobile -- Part 5: Martensitic steelhttps://www.chinesestandard.net, 2022 M08 21 - 16 páginas This document specifies the terms and definitions, classification and designation representation method, order content, dimension, shape, weight, technical requirements, test methods, inspection rules, package, mark and certification of hot rolled high strength martensitic steel sheet and strip for automobile. This document applies to continuously hot rolled martensitic steel strips with a thickness of not more than 6.0 mm, steel sheets cross-cut from them, and longitudinally-cut steel strips. |
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Add the provisions analysis of iron chemical analysis chemical composition classification and designation content GB/T continuously hot rolled Designation and chemical designation representation method determine the technical Dual phase steel flame atomic absorption High hole expansion high strength steel High yield strength hot rolled high hot rolled martensitic hot rolled pickled Hot Rolled Steel Hot rolled surface induced plasticity steel induction furnace Infrared absorption method Inspection items inspection rules longitudinally-cut steel strips Low-Alloy Steel mark and certification method after combustion Methods for chemical methods of steel order content package provisions of GB/T requirements for continuously rolled high strength rolled martensitic steel rolled pickled surface sheet and strip similar designations spectrophotometric method GB/T steel and alloy Steel and iron steel sheets cross-cut strength steel sheet strip for automobile strips shall comply supplier Surface quality level technical requirements tensile strength Tensile test term and definition test methods Transformation induced plasticity yield strength steel