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Functionally Graded Carbide

Conventional Tungsten Carbide / Wear Resistant Tungsten Carbide / Cemented Tungsten Carbide

The HeavyStone Surface™
Here at the JIMS, we have partnered with HeavyStone Lab LLC to manufacture functionally graded carbide compacts, produced using HeavyStone Lab LLC’s patented technology. This process for manufacturing functionally graded cemented tungsten carbide turns conventional tungsten carbide into the HeavyStone Surface™ functionally graded carbide with a wear resistant surface and a tough to break core structure. This surface has been found to offer an outstanding combination of wear resistance and fracture toughness, and thus, a better engineering performance with field tests showing results of a 30% increase in footage drilled. HeavyStone Surface™ carbides produced by the JIMS have been widely used in China, the U.S, Korea, Brazil and Europe.

Technical Parameters
Grade Co (%) Density Hardness TRS(N/mm2) Recommended use
GM06 6 14.95 90.3 2800 DTH hammer, medium to hard rock
KM65 6.5 14.9 90 3000
GM08 8 14.8 88.7 3200
J510 10 14.55 88.1 3300 Roller cone drill bit
J411 11 14.45 88.8 3200
J512 12 14.35 87.3 3200
JCK1 10 14.5 85.7 2400 Road milling, mining
JCK3-S 6.5 14.85 87.5 2200
YH13 13 14.25 88.7 3500 PDC Substrate
YH16 16 13.9 86.6 3200
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