Range attributes C (Carbon) 0.15 to 0.25 % Cr (Chromium) 20 to 22 % Elongation 26.2 % strain Fe (Iron) 62.2 to 67.5 % (estimate) Mn (Manganese) 1 to 1.5 % N (Nitrogen) 0.15 to 0.25 % Ni (Nickel) 10.5 to 12.5 % P (Phosphorus) 0.045 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.7 to 1.25 % Ultimate Tensile Strength 820 MPa Yield Strength 430 MPa Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 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 Available forms Wrought Base Element Fe (Iron) Country USA Material Class Ferrous Alloy Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Specification Status Former designation Specification Type Standard Standards Body SAE (USA) 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* USA Description_old Engine poppet valve Designation EV4 Specification SAE J775 Specification Status Notes active 1993 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 Engine poppet valve Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 1993 Further Information Organizations SAE, International (SAE) (SAE J)
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Range attributes

C (Carbon)

0.15 to 0.25