Chemical Composition Base Element Fe (Iron) C (Carbon) 0.26 to 0.35 % Cr (Chromium) 0.8 to 1.1 % Fe (Iron) 97 to 98.2 % (estimate) Mn (Manganese) 0.4 to 0.6 % Mo (Molybdenum) 0.15 to 0.25 % Ni (Nickel) 0.25 % (maximum) P (Phosphorus) 0.04 % (maximum) S (Sulfur) 0.04 % (maximum) Si (Silicon) 0.2 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 695 MPa (minimum) Ultimate Tensile Strength 849 MPa (minimum) Elongation 16 % strain (minimum) Brinell Hardness 241 (maximum) Rockwell Hardness C scale 23 (maximum) Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Chromium molybdenum steel Alloy Sub-Group Miscellaneous chromium molybdenum steel Country India Standards Body BIS (India) Description Cr-Mo steel bars and rods for aircraft purposes; <=38 mm; ; ann or norm and tempered; cold finished Designation IS 963 Specification Type Standard Specification IS 963 Specification Year 2004 Specification Status Active Specification Status Notes active 2004 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

Base Element

Fe (Iron)