Wear-resistant stainless steel
AssigneeCabot Corporation
InventorsPaul Crook, Richard D. Zordan
Life of this patent
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Abstract
A high chromium stainless steel especially suited for use as wear (galling) resisting components, for example, valve parts. A typical alloy generally contains chromium, nickel, silicon, carbon, an effective cobalt content and the balance iron plus normal impurities. The alloy may be produced in the form of castings, P/M products, hardfacing and welding materials and wrought mill products.
Claims8
An alloy consisting essentially of, in weight percent, 10 to 40 chromium, 5 to 15 nickel, 20 maximum nickel plus manganese, 3 to 7 silicon, 0.25 to 3.5 carbon plus boron, 0.2 maximum nitrogen, 10 to 40 one or more of molybdenum, tungsten, vanadium, tantalum, columbium, titanium, chromium, zirconium, and hafnium, 5 to 30 cobalt and the balance iron plus impurities.
Dependencies are inferred from the claim text.