Cobalt Alloy Haynes 188 Sheet

Haynes 188™ is a cobalt based alloy with excellent high temperature strength and great oxidation resistance up to 2000° F. Haynes 188’s™ has good resistance to sulfidation and good metallurgical stability, therefore Haynes 188™ can be easily fabricated.

Element Min Max

Carbon 0.05 0.15

Manganese -- 1.25

Silicon 0.20 0.50

Phosphorus -- 0.02

Sulfur -- 0.015

Chromium 21.0 23.0

Nickel 20.0 24.0

Tungsten 13.0 15.0

Lanthanum 0.03 0.12

Boron -- 0.015

Iron -- 3.0

Cobalt Bal.

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