GB/T 221-2008
ActiveNotations for designation of iron and steel
钢铁产品牌号表示方法
Application Summary AI generated
GB/T 221-2008 specifies the rules for designating iron and steel product grades using letters and numbers, covering chemical composition and intended use. It is applied in the Chinese metallurgical industry for labeling steel types in manufacturing, quality inspection, and trade documentation. This standard ensures consistent identification across production, procurement, and engineering applications.
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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.