Chemical Composition Base Element Fe (Iron) C (Carbon) 0.2 to 0.3 % Cr (Chromium) 1.5 to 1.8 % Cu (Copper) 0.3 % (maximum) Fe (Iron) 94.5 to 96.7 % (estimate) Mn (Manganese) 0.3 to 0.6 % Mo (Molybdenum) 0.9 to 1.2 % Ni (Nickel) 0.4 % (maximum) P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.025 % (maximum) Si (Silicon) 0.2 to 0.5 % V (Vanadium) 0.2 to 0.3 % 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 420 MPa (minimum) Ultimate Tensile Strength 630 MPa (minimum) Elongation 16 % strain (minimum) Rockwell Hardness B scale 200 Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Chromium molybdenum steel Alloy Sub-Group Chromium molybdenum vanadium steel Country India Standards Body BIS (India) Description Creep resistant; forgings of turbine shafts, <=900 mm; norm and tempered Designation 25Cr2MoVH Specification Type Standard Specification IS 1570/7 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