Haynes 188

Catalog : Haynes 188

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Haynes 188

HAYNES® 188 alloy (UNS R30188) is a cobalt-nickel-chromium-tungsten alloy that combines excellent high-temperature strength with very good resistance to oxidizing environments up to 2000°F (1095°C) for prolonged exposures, and excellent resistance to sulfate deposit hot corrosion. It is readily fabricated and formed by conventional techniques, and has been used for cast component. Other attractive features include excellent resistance to molten chloride salts, and good resistance to gaseous sulfidation.

%Chemical Composition

B La C Si Mn Fe W Cr Ni Co
(max) 0.015 0.03 0.1 0.35 (max) 1.25 (max) 3 14 22 22 Balance

Density & Melting Point

Melting Point (Celsius) Density
1330 (g/cm) 8.9


Hardness (HRBW) Form
98 Sheet
98 Plate
96 Bar


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