Special Alloys Nimonic 90

Principal Design Features

An austenitic high temperature use alloy of nickel-chromium-cobalt, strengthened (by heat treatment) with titanium and aluminum additions.


High temperature, high strength gas turbine components.


Conventional machining techniques used for iron based alloys may be used. This alloy does work-harden during machining and has higher strength and “gumminess” not typical of steels. Heavy duty machining equipment and tooling should be used to minimize chatter or work-hardening of the alloy ahead of the cutting.


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