ERNiCr-3 (also known as AWS A5.14 ERNiCr-3 or Alloy 82) is a nickel-chromium alloy welding filler metal primarily used for welding nickel-based alloys, stainless steel, and carbon steel. Its main applications can be summarized as follows:
Dissimilar Metal Welding: Widely used for joining different types of metals, such as welding between nickel-based alloys and stainless steel or carbon steel, for example, Inconel 600, 601, 690, and Incoloy 800 series alloys.
High-Temperature and Corrosive Environment Applications: Due to its excellent corrosion resistance (including resistance to oxidation, pitting corrosion, and stress corrosion cracking) and high-temperature performance, it is commonly used in industries such as petrochemicals, power generation, and chemical processing. Typical applications include welding or repairing ethylene cracking furnace tubes, heat exchangers, reactors, boiler heat-resistant components, and high-temperature structures in nuclear power equipment.
Seawater Desalination and Marine Engineering: Its composition makes it particularly suitable for welding in chloride-containing environments, especially in seawater desalination plants.
Compatibility with Multiple Welding Processes: Suitable for various welding methods, including TIG (GTAW), MIG (GMAW), and submerged arc welding (SAW), meeting different welding needs from thin to thick plates.
Aerospace and Industrial Furnace Manufacturing: Used in the aerospace industry for the manufacture and repair of high-temperature components such as engine parts; in industrial furnace manufacturing for welding radiant tubes, muffles, and other components.
In summary, ERNiCr-3 is a versatile nickel-based welding filler metal whose core value lies in its ability to reliably join dissimilar metals and provide durable weld performance in harsh environments such as high temperatures and corrosive conditions.
