Chemical Composition Base Element Fe (Iron) Al (Aluminum) 0.1 % (maximum) C (Carbon) 0.08 % (maximum) Co (Cobalt) 0.1 % (maximum) Cr (Chromium) 17 to 19 % Cu (Copper) 0.3 % (maximum) Fe (Iron) 64.1 to 74 % (estimate) Mn (Manganese) 2 % (maximum) Nb (Niobium) 1 % (maximum) Ni (Nickel) 9 to 12 % P (Phosphorus) 0.045 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 1 % (maximum) Ti (Titanium) 0.05 % (maximum) V (Vanadium) 0.1 % (maximum) W (Tungsten) 0.1 % (maximum) 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 5.12e6 lbf/ft^2 Ultimate Tensile Strength 1.07e7 to 1.48e7 lbf/ft^2 Elongation 30 % strain Notes on Mechanical Properties 50 mm gauge 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 321/ 321H Country International Standards Body ISO (International) Description Long. welded tube Designation TW50 Specification Type Standard Specification ISO 2604-5 Specification Year 1978 Specification Status Obsolete Specification Status Notes withdrawn Source Worldwide Guide to Equivalent Irons and Steels, 5th ed.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)