Chemical Composition Base Element Fe (Iron) C (Carbon) 0.35 to 0.45 % Cr (Chromium) 28 to 32 % Fe (Iron) 41.5 to 53.2 % (estimate) Mn (Manganese) 1.5 % (maximum) Mo (Molybdenum) 0.5 % (maximum) Ni (Nickel) 18 to 22 % P (Phosphorus) 0.04 % (maximum) S (Sulfur) 0.04 % (maximum) Si (Silicon) 0.5 to 2 % 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 High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Austenitic stainless steel Alloy Sub-Group HL Country USA Standards Body ACI (USA) Description Heat resistant Designation HL-40 Specification Type Standard Specification ACI (SFSA) Specification Status Active 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 Steel Founders' Society of America (SFSA) (ACI)
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Chemical Composition