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SAE AMS5843 Revision G, June 1, 2016
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Cobalt-Nickel Alloy, Corrosion and Heat-Resistant, Bars 19Cr - 36Co - 25Ni - 7.0Mo - 0.50Cb (Nb) - 2.9Ti - 0.20Al - 9.0Fe Vacuum Induction Plus Vacuum Consumable Electrode Melted Solution Heat Treated, Work Strengthened, and Aged
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AIA/NAS Aerospace Standards

This specification covers a high strength, corrosion and heat-resistant cobalt-nickel-chromium alloy in the form of bars (see 8.2).


These bars have been used typically for applications requiring a combination of high strength up to 1100 °F (593 °C), good tension-tension fatigue strength, toughness, and ductility (see 8.2), but usage is not limited to such applications. This alloy exhibits exceptionally good resistance to corrosion, crevice-corrosion, stress-corrosion cracking, and elevated temperature relaxation.