IACUNI00000930TL00 - ERCuNi Copper-Nickel TIG Welding Rod - 3/32" Diameter

Premium Copper-Nickel TIG Filler Metal

The Josef Gas Monel 67 (ERCuNi) TIG Rod is a high-performance filler metal designed specifically for the welding of copper-nickel alloys. Composed primarily of copper (approximately 70%) and nickel (approximately 30%), this rod is engineered to match the mechanical and chemical properties of wrought or cast copper-nickel base metals. It is manufactured to meet strict AWS A5.7 classifications, ensuring consistent quality and reliability in critical industrial applications.

This alloy is renowned for its outstanding resistance to corrosion, particularly in saline environments. This makes it an essential consumable for industries involved in marine engineering, offshore oil and gas, and desalination. The addition of specific alloying elements helps to refine the grain structure of the weld deposit, reducing the risk of porosity and cracking which can be common in non-ferrous welding. Whether used for joining 70/30, 80/20, or 90/10 copper-nickel alloys, or for surfacing steel to provide a corrosion-resistant overlay, this filler metal delivers superior performance.

Available in a standard 3/32" (2.4mm) diameter and 36" lengths, these rods are packaged to prevent contamination and moisture absorption. They are compatible with standard TIG welding setups utilizing DCEN polarity and 100% Argon shielding gas. For specialized applications requiring higher heat input, an Argon/Helium mix may also be employed.

Key Industrial Applications

• Marine Fabrication: Piping systems, seawater intake lines, and ship hulls.
• Desalination Plants: Heat exchangers, evaporators, and brine piping.
• Chemical Processing: Tanks and vessels requiring resistance to aqueous corrosion.
• Power Generation: Condenser tubes and cooling water systems.