Böhler Welding ER2509 welding wire is specially designed for joining superduplex steels characterized by a two-phase ferritic-austenitic structure. A precisely controlled chemical composition, including increased chromium (Cr), molybdenum (Mo) and nitrogen (N) content, ensures an alloy with a balanced microstructure and exceptional corrosion resistance, including pitting corrosion in chloride-containing environments (PREN index ≥ 40).

Thanks to its properties, ER2509 wire enables the creation of welds with high mechanical strength and good ductility, which is crucial in structures exposed to heavy loads and harsh operating conditions. The use of this material allows to maintain the integrity and functionality of welded components in the most demanding industrial sectors.

Although the welding wire itself does not have electronic functions, the “”Welding Program MIG/MAG Standard – CrNi 25 09 (ER2509)”” from Böhler Welding was developed to work optimally with the brand’s advanced welding equipment equipped with Böhler Arc technology. The Böhler Arc synergy programs, available on the URANOS NX and TERRA NX series power sources, include predefined welding curves and parameters for a wide range of materials, including specialized alloys like superduplex ER2509.

Using dedicated synergy programs for ER2509 wire and the recommended gas mixture (68%Ar-30%He-2%CO2) significantly simplifies parameter settings, ensuring a stable and optimized welding arc. This translates into higher weld quality, less spatter, better fusion and increased productivity, even in difficult welding positions. Professionals can count on repeatable results and full utilization of the potential of both the weld material and the machine.