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Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile.
N 6851 (OTTO) Nickel powder, -300 mesh, 99.5% Cas 7440-02-0 - used is in nickel steels and nickel cast irons, in which it typically increases the tensile strength, toughness, and elastic limit.