DURMAT B is a nickel cored flexible rod coated with both Fused Tungsten Carbide and Ni-Cr-Si developed for oxyacetylene welding. The Deposited alloy consists of approximately 65% FTC and 35% Ni-Cr-B-Si-Matrix hardness of 45HRC. The overlay is highly resistant to acid, bases, lye and other corrosive media and excessive wear conditions. The rod has a low melting rate of between 950-1,050 C and features a self fluxing characteristic producing a smooth, clean welded surface.