Tungsten Carbide Flux Cored Wire: The spherical particles feature uniform stress distribution and chipping resistance with less WC burn loss. It is designed primarily for severe abrasive wear under light impact conditions, widely used for surface hardening of new components and remanufacturing repair of worn parts. Generally nickel-based matrix, it is applicable to GMAW gas shielded surfacing, laser cladding and PTA plasma transferred arc surfacing. Milestone Metal – Manufacturer of Tungsten Carbide Flux Cored Wires.