Patent ID: 7997359
Filing Date: 2011-08-16
Classification: B22F,C22C,E21B

Abstract:
1. An abrasive wear-resistant material comprising the following materials in pre-application ratios: a matrix material forming a portion of a core of a welding rod for use in the application of abrasive wear-resistant material, the matrix material comprising between about 20% and about 75% by weight of the abrasive wear-resistant material; and a plurality of −40/+80 ASTM mesh dense sintered carbide pellets substantially randomly dispersed throughout the matrix material forming a portion of the core of the welding rod, the plurality of dense sintered carbide pellets comprising between about 25% and about 70% by weight of the abrasive wear-resistant material, wherein each pellet of the plurality of dense sintered carbide pellets has a first average hardness in a central region of the pellet and a second average hardness in a peripheral region of the pellet, the second average hardness being greater than about 99% of the first average hardness, the first average hardness and the second average hardness being different.