Range attributes C (Carbon) 0.25 to 0.35 % Cr (Chromium) 13 to 17 % Fe (Iron) 40.6 to 53.8 % (estimate) Mn (Manganese) 2 % (maximum) Mo (Molybdenum) 0.5 % (maximum) Ni (Nickel) 33 to 37 % P (Phosphorus) 0.04 % (maximum) S (Sulfur) 0.04 % (maximum) Si (Silicon) 2.5 % (maximum) Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Nickel steel and nickel low-alloy steel Alloy Sub-Group Nickel-base alloy Available forms Wrought Base Element Fe (Iron) Country USA Material Class Ferrous Alloy Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Specification Status Active Specification Type Standard Standards Body ACI (USA) Short text attributes Composition Note_old 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. Country* USA Description_old Heat resistant Designation HT-30 Specification ACI (SFSA) Long text attributes 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. Description Heat resistant Hyperlink attributes Similar Alloys Click here to find similar alloys Further Information Organizations Steel Founders' Society of America (SFSA) (ACI)
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Range attributes

C (Carbon)

0.25 to 0.35