Nickel-based welding wire is a high-end welding material that connects nickel-based alloys and is used for welding dissimilar materials. Its core value lies in the ability to form welding joints with stable performance in extreme environments.This kind of welding wire is based on nickel, and by adding chromium, molybdenum, tungsten, niobium and other alloying elements, the molten metal has excellent resistance to high temperature oxidation, thermal corrosion resistance and good high temperature strength.It is mainly used in those ultra-high temperature, high pressure or harsh working conditions that stainless steel cannot be competent for a long time. It is the last material line of defense to ensure the long-term safe operation of key equipment.

This product is of strategic significance in the fields of energy, chemical industry and marine engineering.In the superheater pipe walls of supercritical and ultra-supercritical boilers in power stations, in the high-temperature cracking furnace pipes of petroleum refining plants, in the high-temperature and high-pressure pipelines of the ammonia synthesis industry, and in the seawater-resistant components of marine platforms, nickel-based welding wires are the core materials for manufacturing, assembly and in-service repair.It is not only used for welding of the same kind of nickel-based alloys, but also more commonly used for welding dissimilar steels between stainless steel and nickel-based alloys, stainless steel and carbon steel. It uses its high alloying degree and good plasticity to relieve the stress caused by differences in the thermophysical properties of the material and prevent the embrittlement caused by carbon migration.

In view of the importance of its application scenarios, the development of this category has always placed reliability and consistency in the first place.The chemical composition of the welding wire is extremely strictly controlled, and the content of the main elements and trace elements must be ensured to fluctuate within a very narrow range to avoid mutations in performance.At the same time, the purity of its smelting is extremely demanding, and the content of harmful impurities and gases such as sulfur and phosphorus needs to be strictly controlled to ensure the high temperature crack resistance and long-term tissue stability of the weld metal.This ultimate pursuit of internal quality is the basis for nickel-based welding wire to serve high-end industries.