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Hardness vs. Wear Resistance

More cobalt means it will be harder to break but it will also wear out faster.

Grain size: Smaller grains give better wear and larger grains give better impact resistance.   Very fine grain tungsten carbides give very high hardness while extra coarse grains are best in extremely severe wear and impact applications such as rock drilling and mining applications.

More cobalt generally makes a tungsten carbide harder to break

Tungsten carbide as used here means WC grains in a cobalt binder.  Cobalt is softer than the tungsten carbide grains so the more cobalt you have the softer the overall materials will be.  This may or may not relate to how hard the individual grains are.


Contact: zou

Phone: +8615387332820

Tel: +8615387332820


Add: Zhuzhou, Hunan

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