Range attributes C (Carbon) 0.3 to 0.38 % Cr (Chromium) 1.3 to 1.7 % Elongation 10 % strain (minimum) Fe (Iron) 94.7 to 96.5 % (estimate) Mn (Manganese) 0.5 to 0.8 % Mo (Molybdenum) 0.15 to 0.3 % Ni (Nickel) 1.3 to 1.7 % P (Phosphorus) 0.035 % (maximum) S (Sulfur) 0.035 % (maximum) Si (Silicon) 0.4 % (maximum) Ultimate Tensile Strength 1000 to 1300 MPa Yield Strength 800 MPa (minimum) Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family Alloy Steel Alloy Group Nickel chromium molybdenum steel Alloy Sub-Group 4340/ E4340 Available forms Wrought Base Element Fe (Iron) Country United Kingdom 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 BSI (United Kingdom) Short text attributes Alternate Name 1.6582 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* United Kingdom Description_old Bright bars in lengths of alloy special steel; CD, QT, mech props vary with thickness. Designation 34CrNiMo6 Specification BS EN 10277-5 Specification Status Notes active 2005 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 Bright bars in lengths of alloy special steel; CD, QT, mech props vary with thickness. Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 2005 Further Information Organizations British Standards Institution (BSI)
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Range attributes

C (Carbon)

0.3 to 0.38