Patent ID: 8734561
Filing Date: 2014-05-27
Classification: B22F,C22C

Abstract:
1. A bonded metallurgical powder composition comprising: an iron-based powder having a weight average particle size in a range of 20-60 μm, in an amount of at least 80 percent by weight of the composition, graphite powder in an amount between 0.15-1.0 percent by weight of the composition, a binding agent in an amount between 0.05-2.0 percent by weight of the composition, a flow agent in an amount between 0.001-0.2 percent by weight of the composition; wherein the graphite powder is bound to the iron-based powder particles by means of the binding agent, wherein the powder composition has an apparent density of at least 3.10 g/cm wherein the difference between the weight average particle size of said iron-based powder and the weight average particle size of said bonded metallurgical powder composition is at most 20%.