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Overview ISO 4997:2015 specifies requirements for cold‑reduced carbon steel sheet of structural quality - commonly supplied in grades CR220, CR250, CR320, and CH550. The standard covers chemical comp…
Overview ISO 4997:2025 - Cold-reduced carbon steel sheet of structural quality - specifies requirements for cold‑reduced carbon steel sheet intended for structural applications. It covers grades CR22…
1 Scope This International Standard applies to cold-reduced carbon steel sheet of structural quality in grades CR220, CR250, CR320, and CH550, usually without the use of microalloying elements . The…