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SAE AMS5383 Revision E, May 1, 2007
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Nickel Alloy, Corrosion and Heat-Resistant, Investment Castings 52.5Ni - 19Cr - 3.0Mo - 5.1Cb(Nb) - 0.90Ti - 0.60Al - 18Fe Vacuum Melted Homogenization and Solution Heat Treated
Includes all amendments and changes through Reaffirmation Notice , October 2012
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AIA/NAS Aerospace Standards

This specification covers a corrosion and heat-resistant nickel alloy in the form of investment castings.


These casting have been used typically for structural parts requiring strength up to 1300 °F (704 °C) and oxidation resistance up to 1800 °F (982 °C ), but usage is not limit to such applications.

Classification Casting conforming to this specification is classified as follows:

Class 1 Trace element limits conforming to AMS 2280-1

Class 2 Trace element limits conforming to AMS 2280-2

Class 3 Trace element limits do not apply

Casting shall conform to Class 3 unless Class 1 or Class 2 is specification by purchaser.