ESAB Welding & Cutting Products (www.esabna.com) developed a copper-coated, low alloy wire for submerged arc welding. The OK Autrod 13.20SC wire is designed to weld creep-resistant steel, such as steels with 2.5 percent Cr and 1 percent Mo. The company says the wire produces a clean weld deposit with an X-factor less than 15 and a J-factor less than 120 when used in the company's OK Flux 10.63. The wire is designed for welding process pipes, heat exchangers and pressure vessels. This combination, the company says, fulfills the requirements for impact toughness after step-cooling treatment of the weld metal. The wire can be used with other fluxes for applications that do not require step cooling treatment.