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SAE AMS5378 Revision F, April 1, 2007
Complete Document
Superseded By:
Alloy Castings, Investment, Corrosion and Heat Resistant 65.5Co - 25Cr - 1.8Ni - 5.0W as Cast
Includes all amendments and changes through Cancellation Notice , April 2007
Additional Comments: CNCL NO S/S
Page Count:11
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AIA/NAS Aerospace Standards
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This specification covers a corrosion and heat resistant cobalt alloy in the form of investment castings.

Application:

Primarily for small parts, such as turbine blades and vanes, requiring high strength up to 1500°F (815°C) and oxidation resistance up to 2000°F (1095°C). Although difficult to machine, this alloy is more machinable than other similar cobalt-chromium-nickel alloys. Exposure to elevated temperatures may cause hardening of this alloy; e.g., exposure to approximately 1475°F (800°C) for 50 hr may result in hardness as high as 32 HRC.