G-TECH 25.35Nb

These consumables are designed for depositing weld metal that precisely matches the composition of similar castings. Derived from 800-type alloys, this alloy features increased chromium and nickel contents, resulting in enhanced resistance to carburization and oxidation. Operating effectively at temperatures up to 1100°C, it also exhibits remarkable resistance to thermal shock and fatigue. The consumables are particularly suitable for welding applications involving centrifugally cast pyrolysis coils, reformer tubes, return bends, and tees in the petrochemical industry. Typically, there is no need for preheating or post-weld heat treatment (PWHT), and it is advisable to maintain interpass temperatures below 150°C.