Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 25, 2008
Patent Application Number
10918887
Date Filed
August 16, 2004
Patent Primary Examiner
Patent abstract
An alloy steel powder for powder metallurgy includes an iron-based powder containing about 0.5 mass percent or less of Mn as a prealloyed element and 0.2 to about 1.5 mass percent of Mo as a prealloyed element; and a Mo-containing alloy powder bonded on the surface of the iron-based powder by diffusion bonding. In the alloy steel powder for powder metallurgy, a Mo average content [Mo]T (mass percent) satisfies formula 0.8≧[Mo]T−[Mo]P≧0.05, wherein the content [Mo]P is the above prealloyed Mo content (mass percent) in the iron-based powder.
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