SAE Standards Works
AMS G Titanium and Refractory Metals Committee
AMS7857C - Columbium (Niobium) Alloy Bars, Rods, and Extrusions 10Hf - 1.0Ti, Recrystallization Annealed
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Columbium (Niobium) Alloy Bars, Rods, and Extrusions 10Hf - 1.0Ti, Recrystallization Annealed
This specification covers a columbium (niobium) alloy in the form of bars, rods, and extrusions. This material has been used typically for parts requiring exposure at ultra-high temperatures, but usage is not limited to such applications. Applications in oxidizing atmospheres necessitate a protective coating.
AMS7857C results from a Five Year Review and update of this document.