Cavitation erosion resistent steel
AssigneeStoody Deloro Stellite, Inc.
InventorsRavi Menon, William C. Mosier, James B. C. Wu
Life of this patent
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Abstract
A cavitation erosion resistant alloy comprising about 10 to 40 percent by weight of one or more carbide formers including some chromium, 5 to 15 percent by weight cobalt, 5 to 15 percent by weight manganese, 3.5 to 7.0 percent by weight silicon, 1.8 to 4.8 percent by weight nickel, 0.15 to 3.5 percent by weight carbon plus boron, up to 0.3 percent weight nitrogen and the balance being iron plus impurities.
Claims7
A cavitation erosion resistant alloy comprising about 10 to 40 percent by weight of one or more carbide formers including some chromium, 5 to 15 percent by weight cobalt, 5 to 15 percent by weight manganese, 3.5 to 7.0 percent by weight silicon, 1.8 to 4.8 percent by weight nickel, 0.15 to 3.5 percent by weight carbon plus boron, up to 0.3 percent weight nitrogen and the balance being iron plus impurities.
A cavitation erosion resistant alloy comprising about 14 to 24 percent by weight chromium, 6 to 10 percent by weight cobalt, 6 to 12 percent by weight manganese, 4.0 to 5.0 percent by weight silicon, 1.8 to 2.8 percent by weight nickel, 0.15 to 3.0 percent by weight carbon plus boron, up to 0.3 percent weight nitrogen and the balance being iron plus impurities.
A cavitation erosion resistant alloy comprising about 17 percent by weight chromium, 10 percent by weight cobalt, 10 percent by weight manganese, 4.6 percent by weight silicon, 2.0 percent by weight nickel, 0.22 percent by weight carbon plus boron, up to 0.3 percent weight nitrogen and the balance being iron plus impurities.
Dependencies are inferred from the claim text.