Chemical Composition Base Element Fe (Iron) Al (Aluminum) 0.15 to 0.6 % C (Carbon) 0.05 to 0.1 % Cr (Chromium) 19 to 23 % Cu (Copper) 0.7 % (maximum) Fe (Iron) 38.5 to 50.6 % (estimate) Mn (Manganese) 1.5 % (maximum) Ni (Nickel) 30 to 34 % P (Phosphorus) 0.015 % (maximum) S (Sulfur) 0.015 % (maximum) Si (Silicon) 1 % (maximum) Ti (Titanium) 0.15 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. Mechanical Properties Yield Strength 3.55e6 lbf/ft^2 (minimum) Ultimate Tensile Strength 9.4e6 to 1.42e7 lbf/ft^2 Elongation 30 % strain (minimum) Brinell Hardness 192 (maximum) Other Information Material Class Ferrous Alloy 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 Country International Standards Body ISO (International) Description Wrought heat resistant austenitic steel for temps>550 C, long products; solution ann. Alternate Name formerly Type 20 Designation X8NiCrAlTi32-21 Specification Type Standard Specification ISO 4955 Specification Year 2005 Specification Status Active Specification Status Notes active 2005 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 International Organization for Standardization (ISO)
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Chemical Composition

Base Element

Fe (Iron)