Historical
SAE AMS 7850C-2002 (SAE AMS7850C-2002)
Columbium (Niobium) Sheet, Strip, Plate, and Foil ( Reaffirmed: Jul 2006 )
This specification covers columbium in the form of sheet, strip, plate, and foil. Primarily for parts requiring exposure to ultra-high temperatures. Applications in oxidizing atmospheres necessitate a protective coating.
Society of Automotive Engineers [sae]