SAE Standards Works
AMS G Titanium and Refractory Metals Committee
AMS7850E - Columbium (Niobium) Sheet, Strip, Plate, and Foil
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Columbium (Niobium) Sheet, Strip, Plate, and Foil
This specification covers columbium in the form of sheet, strip, plate, and foil. This material has been used typically for parts requiring exposure to ultra-high temperatures, but usage is not limited to such applications. Applications in oxidizing atmospheres necessitate a protective coating. Although produced in the cold rolled condition, this material is intended to be used in the annealed condition.
AMS7850E is a Five Year Review and update of this specification.