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WC-Co vs WC-CoCr

How binder chemistry affects tungsten-carbide coating selection.

WC-Co

Classic high-wear carbide system where abrasion and erosion dominate.

WC-CoCr

The chromium-containing binder can add corrosion resistance while preserving high wear performance.

Selection

Corrosive medium, wear mode, temperature and final surface requirements must be evaluated together.

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