Chemical Composition Base Element Fe (Iron) C (Carbon) 0.27 to 0.35 % Cr (Chromium) 0.5 to 0.8 % Fe (Iron) 94.2 to 96 % (estimate) Mn (Manganese) 0.4 to 0.7 % Mo (Molybdenum) 0.4 to 0.7 % Ni (Nickel) 2.3 to 2.8 % P (Phosphorus) 0.04 % (maximum) S (Sulfur) 0.04 % (maximum) Si (Silicon) 0.1 to 0.35 % 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 88.5 ksi (minimum) Ultimate Tensile Strength 113 ksi (minimum) Elongation 15 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Miscellaneous or unclassified Alloy Sub-Group Miscellaneous high-alloy steel Country India Standards Body BIS (India) Description Seamless Ni-Cr-Mo steel tubes for high pressure gas cylinders; hardened and tempered Designation Type 3 Specification Type Standard Specification IS 12620 Specification Year 2002 Specification Status Active Specification Status Notes active 2002 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 Bureau of Indian Standards (BIS)
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Chemical Composition