This welding wire is perfect for joining or surfacing high-temperature, heat-resistant cast alloys where oxidation, carburization, or significant thermal stress is a concern. You’ll often find it used in welding components of reformer and pyrolysis furnaces, furnace tubes, industrial ovens, boiler and heat-treatment equipment, and other high-temperature process components that operate at temperatures up to about 1,100–1,175 °C. Due to its impressive creep strength and resistance to oxidation and carburization, the 35/45 filler wire is a go-to choice in the petrochemical, chemical processing, power generation, and heat-treating industries, especially in harsh or sulfur-rich environments where standard stainless or alloy materials might not hold up.