Niobium, formerly columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41.
N 9596 (OTTO) Niobium, irregular particles, <50 mm, 99.9% Cas 7440-03-1 - used in various superconducting materials. N 9596 (OTTO) Niobium, irregular particles, <50 mm, 99.9% Cas 7440-03-1 -
used in high temperature and super alloys of Zn and Ti.