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.

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Applications

High temperature, high strength gas turbine components.

Machinability

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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