Niobium is used as an alloying agent and for jewelry. Other uses include adding small amounts to improve stainless steel, as an alloying agent in carbon and alloy steels and in non-ferrous metals to improve strength.
N 9536 (OTTO) Niobium sputtering target, diam. x thickness 25.4 mm x 1 mm, 99.9% Cas 7440-03-1 - used in pipeline construction.