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Cobalt Alloy

B1/B2 — cast or powder metal, for wear and corrosion service.

Grade specifications

Ball Specifications

MaterialAlloy #2

Hardness53 – 63 RC

Density.316 lbs/cu.in.

Chemical composition

WC 16.0–19.0% / Cr 31.0–34.0% / C 2.2–2.7% / Mn 1.0% max / Fe 3.0% max / Si 1.0% max / Ni 2.5% max / Co balance

Remarks

Good wear, good corrosion resistance.

Seat Specifications

MaterialAlloy #3

Hardness50 – 57 RC

Density.314 lbs/cu.in.

Chemical composition

WC 11.0–14.0% / Cr 29.0–33.0% / C 2.0–2.6% / Mn 1.0% max / Fe 3.0% max / Si 1.0% max / Ni 3.0% max / Co balance

Remarks

Good wear, good corrosion resistance.

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