ERNiCr-3 (AWS A5.14) is a high-performance, nickel-based welding filler wire (like Inconel 82) known for excellent corrosion, oxidation, and high-temperature strength, used for joining nickel alloys (Inconel, Incoloy) to themselves or to dissimilar metals like stainless steels and carbon steels, covering applications from cryogenic to furnace temperatures in industries like chemical processing, power, and aerospace.
Key Characteristics
Composition: Primarily Nickel, Chromium, and Iron.
Performance: Offers high strength, toughness (even at low temperatures), and superior resistance to creep, oxidation, and chloride stress corrosion cracking.
Applications: Ideal for welding Inconel 600, 601, 690, Incoloy 800, and for dissimilar joints in demanding environments like petrochemical plants, desalination, and power generation.
Welding Processes: Used with GTAW (TIG), GMAW (MIG), and SAW.
Benefits
Versatility: Bridges gaps between nickel alloys, stainless steels, and carbon steels.
High-Temperature Stability: Maintains strength and resists creep at elevated temperatures.
Corrosion Resistance: Excellent against various corrosive media, including chlorides.