ERCuNi

ERCUNI Tig Rod, ERCUNI Welding Wire, Alloy 67 Welding MIG & TIG Filler Metal Supplier in India.

Shanti Metals supplies and exports AWS Class ERCuNi MIG & TIG welding wires from Mumbai, India. We offer nickel alloy TIG welding filler materials in different sizes and lengths to meet industrial needs. Our filler rods are also known as Alloy 67, Monel Filler Metal 67, UTP A 387, and OK AUTROD 19.49.

ERCuNi is a copper nickel-base filler metal classified under AWS A5.7. It’s used in MIG, TIG, oxyacetylene, and submerged arc welding for marine and corrosive environments. Its excellent seawater corrosion resistance makes it ideal for shipbuilding, offshore platforms and desalination plants. This alloy is also used for gas metal and gas tungsten arc welding. It can also be used by oxy-fuel welding of 70/30, 80/20, and 90/10 copper-nickel alloys.

Composition & Key Features

• Base Metals: A blend of copper (Cu) and nickel (Ni) in various ratios (e.g., 70/30, 80/20, and 90/10).
• Application: Designed for welding copper-nickel alloys to themselves or to MONEL® alloys (such as 400, R-405, K-500) and Nickel 200. The UTP A 387 Welded Wires are used for gas-metal-arc-welding (MIG) of Monel alloy 450 and other copper-nickel alloys. It is used for surfacing steel if a barrier layer of Nickel Filler Metal 61 is first applied. OK AUTROD 19.49 Welded Wires can be utilized for the barrier layer, If functional by the submerged-arc procedure. These Welded Wires have good resistance to corrosion in seawater and are widely used for marine and desalination applications

Why Use ERCuNi?

Corrosion Resistance

• Seawater: Outstanding resistance to pitting and stress corrosion.
• Biofouling: High copper content prevents marine organisms from adhering to surfaces—a key benefit in shipbuilding and offshore applications.

Versatile Welding Compatibility: Works with different welding processes MIG, TIG, oxy-fuel, and submerged arc welding.

Enhanced Welding Considerations

• Nickel-Based Barrier Layer Requirement: When welding ERCuNi to carbon steel, you need to use a nickel-based barrier layer (e.g., ERNi-1 or MONEL 60).
• Why It's Necessary: Prevents iron contamination from the carbon steel which can reduce the corrosion resistance of the weld by introducing sites for galvanic corrosion.
• Benefit: Ensures the inherent corrosion resistant properties of ERCuNi are maintained.

Submerged-Arc Welding: ERCuNi performs best when paired with specialized fluxes like INCOFLUX 8, ensuring strong, high-quality weld deposits.

AWS A5 7 ERCUNI | Monel Filler Metal 67 | Alloy 67 ERCuNi | Monel 67 | ERCuNi MIG & TIG Welded Wire

Available Sizes

Chemical Composition (%)

Deposited Chemical Composition % (Typical)

Mechanical Properties

Deposited All Weld Metal Properties % (AW)

Deposited Charpy-V-Notch Impact Properties %

Not applicable

Recommended Welding Parameters for TIG Nickel Alloys

Note: Other shielding Gases may be used for Tig welding. Shielding gases are chosen taking Quality, cost, and Operability into consideration.

Note: Both agglomerated and fused fluxes can be used for submerged arc welding.

Note: The chemical composition of the flux mainly affects the chemistry of the weld metal and consequently its corrosion resistance and mechanical properties.

We source from the following Manufacturer Brands & their Trade Names

Disclaimer : All third party trademarks (including logos, names and icons) referenced by 'Shanti Metal Supply Corporation' remain the property of their respective owners.

Supply Cities of AWS Class ERCuNi MIG & TIG Filler Metal

Export Countries of AWS Class ERCuNi MIG & TIG Filler Metal

Norway, Germany, Brazil, Tibet, Gambia, Iran, France, Hong Kong, Qatar, Czech Republic, Finland, Kuwait, South Korea, Croatia, Greece, Israel, Taiwan, Namibia, Switzerland, Trinidad and Tobago, Gabon, Denmark, Chile, Russia, Mongolia, Saudi Arabia, Vietnam, Netherlands, United Kingdom, Angola, Ireland, Philippines, Macau, Algeria, Belgium, Thailand, Mexico, Tunisia, Sri Lanka, Poland, Oman, Colombia, Mexico, Lithuania, Bhutan, Morocco, Spain, Bulgaria, Libya, Bolivia, Ukraine, Lebanon, Jordan, Bahrain, Portugal, Hungary, Yemen, Italy, South Africa, Zimbabwe, Puerto Rico, Austria, Canada, Slovakia, Bangladesh, United Arab Emirates, New Zealand, Serbia, Nigeria, Azerbaijan, Singapore, Japan, Ecuador, Kenya, Poland, Iran, Malaysia, Sweden, Kazakhstan, Turkey, Belarus, Peru, Afghanistan, Nigeria, Chile, Australia, Iraq, United States, Romania, China, Costa Rica, Ghana, Nepal, Egypt, Argentina, India, Indonesia, Venezuela, Estonia,