A reputable producer and supplier of Nickel Alloy ERNiCu-7 Welding Wire, Conra Welding Supplies is based in Houston, USA, and is well-known for its exceptional corrosion resistance and ability to be welded in challenging conditions. With its exceptional strength, thermal stability, and resistance to acidic and seawater conditions, ERNiCu-7 is specifically made for welding nickel-copper alloys such as Monel 400 and 404. Conra uses strict quality control to guarantee that every wire satisfies performance requirements and international standards. Conra Welding Supplies has been providing reliable solutions for the power, chemical, and marine industries for decades. It has established a reputation for quality and customer satisfaction in crucial welding operations.
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Welding Wire diameter : 0.5 – 2.0mm.
MIG Welding Wire Diameter : commonly 0.6mm, 0.8mm, 1.0mm.
MIG Welding Wire SIZE RANGE : 0.60 mm to 1.60 mm (0.025” to 0.062”)
Flux Cored Wire diameter : 1.0 – 1.6mm.
TIG Welding Wire SIZE RANGE : 0.80 mm To 5.00 mm (0.030” To 0.196”)
Form : MIG / MAG Welding Wire, Tig Welding Wire, Flux-Cored Arc Welding Wire (FCAW)
| Grade | C | Mn | Si | P | S | Cr | Ni |
| Nickel ERNiCu-7 | .03 max | .35 max | .34 max | .009 max | .005 max | 21.5 | Bal |
| Yield Strength, N/mm2 | Tensile Strength, N/mm2 | Elongation, % |
| 89,500 PSI / 620 MPA | 114,500 PSI / 790 MPA | 34% |
Nickel (about 65%) and copper (about 30%) make up the majority of ERNiCu-7 welding wire, with trace amounts of iron, manganese, and titanium. This well-balanced composition improves corrosion resistance in reducing, saltwater, and hydrofluoric acid environments. In terms of mechanical properties, the wire offers good ductility and toughness with a tensile strength of roughly 480–620 MPa, yield strength of roughly 170–380 MPa, and elongation of 30–40%. For welding comparable nickel-copper alloys, ERNiCu-7 offers exceptional weldability with low porosity and cracking, preserving strength and resistance to corrosion under harsh circumstances.
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Conrad Welding Supplies, based in Houston , USA, is a trusted manufacturer and distributor of Nickel Alloy ERNiCu-7 Welding Wire, renowned for its excellent weldability, corrosion resistance, and durability. Designed for MIG, TIG, and arc welding, this high-performance wire is ideal for marine, chemical processing, and power generation industries. With a precise composition of nickel, copper, and trace elements, it provides superior resistance to seawater corrosion and acidic environments. We are committed to delivering premium welding solutions, ensuring outstanding product quality and exceptional customer service for professional welders and industries worldwide.
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Industries that demand dependable weld joints and high corrosion resistance frequently use nickel alloy ERNiCu-7 welding wire. It is perfect for welding Monel 400 and 404 alloys in chemical processing equipment, heat exchangers, desalination systems, and marine engineering. The wire’s exceptional resistance to stress corrosion, cracking, and pitting makes it ideal for piping systems that handle saline or acidic fluids. It also does well in power plants, offshore oil platforms, and shipbuilding. Because of its exceptional weld integrity and durability in demanding service environments, ERNiCu-7 is the material of choice for both fabrication and maintenance.
We provide high-quality electrodes, filler wire, MIG and TIG welding wires to a wide range of industries, including oil and gas, food, marine, petrochemical, power generation, and aerospace.
Conrad Welding Supplies is a leading manufacturer, supplier and exporter of high-quality Coated Electrodes, Flux Core, MIG & TIG wires, SAW & Flux, Welding Wires, and Filler Wires, catering to various industries in Houston , USA
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