Hardfacing composition for earth-boring bits

Details Hardfacing composition for earth-boring bits Hardfacing composition for earth-boring bits

C - Chemistry, Metallurgy

22

C

C22C 29/02 (2006.01) B22F 1/00 (2006.01) B23K 35/32 (2006.01) C04B 35/56 (2006.01) C22C 1/05 (2006.01) C23C 4/10 (2006.01) C23C 30/00 (2006.01) E21B 10/00 (2006.01) E21B 10/50 (2006.01)

Patent

CA 2161464

A hardfacing composition comprises at least 60% by weight of hard metal granules including a quantity of sintered carbide pellets and a quantity of cast carbide pellets. The cast and sintered carbides are selected from the group of carbides consisting of chromium, molybdenum, niobium, tantalum, titanium, tungsten, and vanadium carbides and alloys and mixtures thereof. The balance of the hardfacing composition is matrix metal with traces of flux or deoxidizer, and alloying elements. All percentages given are pre-application ratios. - 21 -

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