Range attributes Brinell Hardness 285 (maximum) C (Carbon) 1 to 1.1 % Co (Cobalt) 4.7 to 5.2 % Cr (Chromium) 3.8 to 4.4 % Cu (Copper) 0.25 % (maximum) Fe (Iron) 73.9 to 78.8 % (estimate) Mn (Manganese) 0.2 to 0.51 % Mo (Molybdenum) 8 to 9 % N (Nitrogen) 0.05 to 0.1 % Nb (Niobium) 0.1 to 0.3 % Ni (Nickel) 0.6 % (maximum) P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.2 to 0.5 % V (Vanadium) 1.7 to 2.1 % W (Tungsten) 1.5 to 2 % Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family Tool Steel Alloy Group High-speed tool steel Alloy Sub-Group Molybdenum high-speed steel Available forms Wrought Base Element Fe (Iron) Country Russia 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 GOST (Russia) 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* Russia Description_old High speed steel for alloyed steels, stainless, after quenching and high-temp tempering; hardness after annealing Designation R2AM9K5 Specification GOST 19265 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 High speed steel for alloyed steels, stainless, after quenching and high-temp tempering; hardness after annealing Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 1973 Further Information Organizations State Committee of the Russian Federation for Standardization and Metrology Gosstandart of Russia (GOST)
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Range attributes

Brinell Hardness

285

(maximum)