Metrode Ultramet-HP50WCO description: This electrode matches similar cast alloys originating from the Abex alloy Supertherm, which is itself related to the cobalt free Blaw-Knox alloy 22H (data sheet C-80). The high carbon high alloy matrix provides excellent hot strength and oxidation resistance at typical service temperatures of 950-1250C. Cobalt and tungsten are important for maintaining matrix strength beyond about 1150C when carbides are progressively dissolved. Applications include highly stressed furnace parts, sintering and calcining muffles, cement kiln components resistant to hot abrasion, radiant tubes and pyrolysis coils.