Chemical Composition Base Element Fe (Iron) C (Carbon) 0.95 to 1.05 % Cr (Chromium) 1.25 to 1.75 % Fe (Iron) 95.8 to 97.1 % (estimate) Mn (Manganese) 0.25 to 0.45 % Mo (Molybdenum) 0.3 to 0.5 % Si (Silicon) 0.2 to 0.4 % 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 Mold steel and special-purpose tool steel Alloy Sub-Group Low-alloy tool steel Country USA Standards Body SAE (USA) Description Special purpose tool steels, low alloy types, Cr. Designation L7 Specification Type Standard Specification SAE J438 Specification Year 1970 Specification Status Active Specification Status Notes active 1970 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 SAE, International (SAE) (SAE J)
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Chemical Composition