FW5001 ≥ 60HRC a variety of industrial mixing devices mixed leaves, scraper, broken sand machine butt ends, plate type scraper, mud pump blades. FW-5001 ~ FW-5003 for the WC-type tubular cored welding electrodes. Surfacing layer is made of steel, base metal and tungsten carbide particles in the composite alloy. Tungsten carbide particles in the welding process does not melt, and the base metal to match the cladding layer has a very excellent wear resistance; available manual arc welding, oxyacetylene gas flame surfacing can also be used. Where: FW-5001 (hard cast tungsten carbide particles) WC content of ≥ 50% WC grain size ≤ 60 mesh FW-5002 (hard cast tungsten carbide particles) WC content of ≥ 50% WC FW-mesh size ≤ 20 5003 (Hard sintered tungsten carbide particles) WC ≥ 50% WC content of ≤ 30 mesh particle size