Home > SAW & Flux > AWS Class ERNiCu-7 SAW & Flux
Ragnar Welding Supplies is a trusted manufacturer and supplier based in Jakarta, Indonesia, specializing in high-quality welding consumables. With a strong commitment to innovation and industry standards, we offer a comprehensive range of products, including AWS Class ERNiCu-7 SAW wire and compatible flux, designed to deliver superior performance in demanding welding applications. Our solutions cater to diverse industries such as shipbuilding, petrochemical, power generation, and heavy engineering. Backed by advanced manufacturing facilities and strict quality control, Ragnar Welding Supplies ensures reliability, durability, and efficiency, making us a preferred partner for customers seeking excellence in welding technology.
| Classification | AWS A5.14, ERNiCu-7 |
| Form | Welding Fluxes and Wires |
| Type Of Welding | Submerged Arc Welding |
| Thickness available | Upto 4 mm |
| AWS ERNiCu-7 SAW & Flux Application & uses |
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AWS Class ERNiCu-7 SAW & Flux is a nickel-copper alloy welding consumable designed for excellent corrosion resistance, especially in seawater and marine environments. Its typical composition includes nickel (65–70%), copper (29–33%), with small additions of iron, manganese, and titanium for enhanced weldability. The alloy exhibits tensile strength of approximately 480–620 MPa, yield strength around 170–345 MPa, and elongation of 30–45%. When paired with suitable flux, ERNiCu-7 provides smooth weld beads, low spatter, and outstanding resistance to stress-corrosion cracking.
| C | Mn | Fe | P | S | Si | Cu | Ni | Al | Ti | Other |
| 0.15 | 4.0 | 2.5 | 0.02 | 0.015 | 1.25 | Rem | 62.0-69.0 | 1.25 | 1.5-3.00 | 0.50 |
| Tensile Strength, kpsi: | 77 |
| Yield Strength, kpsi: | *NS |
| Elongation %: | *NS |
| Diameter | Process | Volt | Amps (flat) | Amps (V/OH) | |
| in | (mm) | ||||
| .035 | (0.9) | GMAW | 26-29 | 150-190 | Spray Transfer 100% Argon |
| .045 | (1.2) | GMAW | 28-32 | 180-220 | Spray Transfer 100% Argon |
| 1/16 | (1.6) | GMAW | 29-33 | 200-250 | Spray Transfer 100% Argon |
| 1/16 | (1.6) | GTAW | 14-18 | 90-130 | 100% Argon |
| 3/32 | (2.4) | GTAW | 15-20 | 120-175 | 100% Argon |
| 1/8 | (3.2) | GTAW | 15-20 | 150-220 | 100% Argon |
At Ragnar Welding Supplies, we take pride in being one of Indonesia’s trusted suppliers of high-quality welding consumables. Our expertise lies in AWS Class ERNiCu-7 SAW & Flux, engineered for precision, durability, and resistance to corrosion. With a strong commitment to quality and customer satisfaction, we provide welding solutions that support industries across construction, energy, shipbuilding, and manufacturing.
AWS Class ERNiCu-7 SAW & Flux is widely used for welding nickel-copper alloys, particularly Monel® alloys, and for joining these alloys to steel or other nickel-based materials. Its excellent corrosion resistance in seawater, brine, and chemical environments makes it ideal for marine engineering, desalination plants, offshore platforms, and shipbuilding. It is also applied in heat exchangers, pumps, valves, and piping systems in petrochemical and power generation industries. With high mechanical strength and resistance to stress-corrosion cracking, ERNiCu-7 SAW & Flux ensures durability and reliability in critical applications requiring long-term service performance.
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