Prealloyed iron powder

Details Prealloyed iron powder Prealloyed iron powder

C - Chemistry, Metallurgy

22

C

75/6

C22C 1/04 (2006.01)

Patent

CA 1112080

PREALLOYED IRON POWDER ABSTRACT OF THE DISCLOSURE A prealloyed powder is described which is useful for promoting optimum hardenability when exposed to copper and graphite during sintering. A powder metal preform including such prealloyed powder, copper powder and graphite. The prealloyed powder has a mesh size of -80 mesh, an oxygen content no greater than 0.25% and a carbon content less than 0.04%. Each particle of the powder has an irregular spherical configuration and consists of a steel alloy having 0.4 to 0.65% by weight of molybdenum, optionally along with 0.4 to 0.65% by weight of nickel, with the remainder being substantially iron.

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