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655M13 Case Hardening Steel

655M13 is a nickel-chromium-molybdenum based case hardening engineering steel which is specifically designed for carburising. The addition of nickel increases shock resistance and toughness whilst the chromium increases the material’s hardenability giving it a uniformed hardness. Once hardened and carburised, EN36 can achieve a core strength of up to 1230 N/mm². EN36 (655M13) is used specifically in heavy duty and highly stressed applications due to its hardenability, toughness and high core strength. EN36 also offers excellent fatigue resistance.

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