Iron- based pre-alloyed powder

Details Iron- based pre-alloyed powder Iron- based pre-alloyed powder

C - Chemistry, Metallurgy

22

C

C22C 33/02 (2006.01) B22F 1/00 (2006.01) B22F 3/16 (2006.01) B22F 3/24 (2006.01)

Patent

CA 2725652

The present invention concerns a pre-alloyed iron based powder. Particularly the invention concerns a pre-alloyed iron-based powder including small amounts of alloying elements which permits a cost efficient manufacture of sintered parts. A pre-alloyed iron-based powder according to the invention compress or consisting of 0.2-1 % by weight of Cr 0.05-0.3 % by weight of Mo 0.1-1 % by weight of Ni 0.09-0.3 % by weight of Mn, 0.01 % by weight or less of C, less than 0.25 % by weight of 0, less than 1% by weight of inevitable impurities, the balance being iron.

La présente invention concerne une poudre pré-alliée à base de fer. En particulier, linvention concerne une poudre pré-alliée à base de fer comprenant des petites quantités déléments dalliage qui permet une fabrication économique de pièces frittées. Une poudre pré-alliée à base de fer selon linvention comprime ou est constituée de 0,2 à 1% en poids de Cr, 0,05 à 0,3% en poids de Mo, 0,1 à 1% en poids de Ni, 0,09 à 0,3% en poids de Mn, une quantité égale ou inférieure à 0,01% en poids de C, moins de 0,25% en poids de O, moins de 1% en poids dimpuretés inévitables, le reste étant du fer.

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