Chemical Composition Base Element Fe (Iron) C (Carbon) 0.85 to 1.05 % Cr (Chromium) 0.4 to 0.6 % Fe (Iron) 95.9 to 97.1 % (estimate) Mn (Manganese) 1 to 1.4 % P (Phosphorus) 0.03 % S (Sulfur) 0.03 % Si (Silicon) 0.15 to 0.4 % W (Tungsten) 0.4 to 0.6 % Composition Note Fe is listed as a Base element for this material, but its % value is not listed in the specification. The value shown is a calculated one. Other Information Material Class Ferrous Alloy Alloy Family Tool Steel Alloy Group Cold-work tool steel Alloy Sub-Group Oil-hardening cold-work steel Country Pan America Standards Body COPANT (Pan America) Description Bar, forging Designation O1 Specification Type Standard Specification COPANT 337 Specification Status Obsolete Specification Status Notes Inactive Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Available forms Wrought Similar Alloys Click here to find similar alloys Links Organizations Pan American Standards Commission (COPANT)
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Chemical Composition