GB/T 20887.2-2010
AbolishedContinuously hot rolled high strength steel sheet and strip for automobile － Part 2: High hole expansion steel
汽车用高强度热连轧钢板及钢带 第2部分：高扩孔钢
Application Summary AI generated
This standard specifies the chemical composition, mechanical properties, and dimensional tolerances for continuously hot-rolled high-strength steel sheets and strips specifically designed for high hole expansion applications in automobile manufacturing. It is applied in the production of automotive structural and safety components, such as chassis parts and suspension arms, where the material must withstand significant deformation during hole flanging or stamping processes without cracking. The standard ensures consistent quality for use in vehicle body and frame assemblies requiring enhanced formability and strength.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.