WC-CoCr
A strong first candidate for severe wear and erosion across many ambient-to-moderate-temperature applications such as shafts, rolls and hydraulic components.
Cr₃C₂-NiCr
Often preferred as service temperature rises and hot wear/oxidation become more important because chromium-carbide systems retain useful high-temperature stability.
Do not select by hardness alone
Particle size, impact angle, temperature, corrosion, thermal cycling, substrate stiffness and final finish can dominate service performance.
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