Grades We have one of the broadest ranges of tungsten carbide grades in the industry and the tightest specs you'll find anywhere.   Cobalt. Nickel. Tantalum.  We offer them all.  In fact, we produce more than 50 carbide grades in a wide range of binder concentrations and particle sizes.  We also lead the industry with the tightest overall material specifications. Our tungsten carbide grades use cobalt binders ranging in concentrations from 3% to 30% and offer nominal particles sizes from 0.55 microns to 10 microns.  The superfine carbides are exceptional for applications requiring sharp edges.  In addition, we offer a broad range of tungsten carbide with tantalum to reduce galling in your metal-forming operations. We are a major producer of nickel carbides for environmental conditions where corrosion, oxidation and wear push your tooling to the limit.  We maintain the purity of these carbides through a dedicated nickel room and nickel production processes that eliminate the potential for contamination. Additional Informaton: Grade Specifications Chart (PDF, 2 pages, 32.4k, 21-May-2009) Powder Metal Tooling Grade Information (PDF, 2 pages, 1958k, 26-Aug-2009) Grade Selection Guide