Chemical Composition Base Element Cr (Chromium) C (Carbon) 1.5 to 2 % Cr (Chromium) 23 to 27 % Fe (Iron) 6 % (maximum) Mn (Manganese) 1 % (maximum) Mo (Molybdenum) 1 % (maximum) Ni (Nickel) 20.5 to 23.5 % P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.8 to 1.5 % W (Tungsten) 10.5 to 13.5 % Other Information Material Class Ferrous Alloy Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Nickel steel and nickel low-alloy steel Alloy Sub-Group Nickel chromium alloy Country USA Standards Body SAE (USA) Description Engine poppet valve, facing alloy. Alternate Name formerly VF 5, commercially Stellite F Designation R30002 Specification Type Standard Specification SAE J775 Specification Year 1993 Specification Status Active Specification Status Notes active 1993 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 SAE, International (SAE) (SAE J)
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Chemical Composition