Corodur Corocarb NIA description: COROCARB–NIA is a cold rolled, formed, closed seam nickel tube filled with fused tungsten carbide (FTC) and Cr, B and Si for oxyacetylene application. The deposited alloy consists of approximately 65% FTC and 35% Ni-Cr-B-Si-matrix. COROCARB–NIA wets easily and has excellent flow producing a smooth, clean surface. COROCARB–NIA has a low melting point of approx. 900 – 1050C. The overlay is extremely resistant to acids, bases, lyes and other corrosive media and other excessive wear conditions.