Crown Alloy 1/8 x 36" CROWN 21 Chrome-Moly (ER 90S-B3) TIG 5 lb BOX (MTCR21/TO)

Crown Alloy CROWN 21 Chrome-Moly TIG welding rods deliver superior performance for high-temperature applications requiring chrome-molybdenum alloy properties. These 1/8" x 36" ER 90S-B3 classification rods are engineered for welding chrome-moly steels in power generation, petrochemical, and pressure vessel fabrication. The 5-pound box provides consistent arc characteristics and excellent mechanical properties. Ideal for professional welders working on boiler tubes, steam lines, and high-temperature structural applications demanding reliable joint integrity.