Corodur Corocarb FE description: COROCARB OA is an open arc tubular wire filled with fused tungsten carbide (FTC) for semi-automatic application, where extreme abrasive wear is encountered. For hardfacing of low alloyed steels that have a maximum of 0,45% carbon (a higher carbon content could lead to cracking). Also for hardfacing and repairing tools and machine parts exposed to wear. The area to be hardfaced should be free of rust, scale, grease or other dirt. Depending on the base metal’s alloy and the size of the area to be hardfaced the advisable preheating temperature should be between 350-500C (662-932F). If the voltage and the welding current are kept on the lowest setting possible the tungsten carbide granular will be prevented from melting. During welding, position the arc that the weld metal is deposited in coarse droplets