Range attributes C (Carbon) 0.37 to 0.49 % Cr (Chromium) 0.75 to 1.2 % Fe (Iron) 96.5 to 97.9 % (estimate) Mn (Manganese) 0.65 to 1.1 % Mo (Molybdenum) 0.15 to 0.25 % P (Phosphorus) 0.035 % S (Sulfur) 0.04 % Si (Silicon) 0.15 to 0.35 % Yield Strength 235 to 360 MPa Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family Alloy Steel Alloy Group Chromium molybdenum steel Alloy Sub-Group 4140/ 4142 Available forms Wrought Base Element Fe (Iron) Country India Material Class Ferrous Alloy Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Specification Status Active Specification Type Standard Standards Body BIS (India) Short text attributes Composition Note_old 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. Country* India Description_old Steels for fasteners for use 300 degrees C to 650 degrees C; hot tensile properties; <=100 mm ruling section Designation 43Cr4Mo2 Specification IS 14331 Specification Status Notes active 2001 Long text attributes 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. Description Steels for fasteners for use 300 degrees C to 650 degrees C; hot tensile properties; <=100 mm ruling section Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 2001 Further Information Organizations Bureau of Indian Standards (BIS)
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Range attributes

C (Carbon)

0.37 to 0.49