Abratig CuNi30
Filler metal CuNi 70/30
Product description
TIG wires for gas-shielded welding of Cupro-Nickels such as 70/30, 80/20 and 90/10…
Product application instructions
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Marine piping, heat exchangers, condensers
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Offshore facilities
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Thermal or nuclear power plant
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Chemical industry, desalination, water treatment
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Military or commercial vessels, critical areas exposed to water
Wear resistance
Corrosion
Temperature
Classification
| AWS A5.7 | ISO 24373 |
|---|---|
| ERCuNi | S Cu 7158 (CuNi30Mn1FeTi) |
Chemical analysis (%)
| Fe | Mn | If | Ni | Ti | P | Pb | Cu |
|---|---|---|---|---|---|---|---|
| 0.6 | 0.7 | <0.2 | 30.0 | 0.4 | <0.2 | <0.2 | Rest |
Mechanical characteristics
| Rm (Mpa) | Rp0.2 (MPa) | A5 (%) |
|---|---|---|
| 400 | 240 | 32 |
Why choose ABRATIG CuNi30 filler metal?
Choosing ABRATIG CuNi30 (also known as CuNi 70/30) means you want to weld a copper-nickel alloy that is highly resistant to marine corrosion and harsh environments, with very specific metallurgical properties. It’s a high-end wire for demanding technical applications.
- Nickel-rich composition (~30%)
Nickel greatly improves :
-Mechanical resistance
-Stress corrosion resistance
-Thermal stability
- Excellent resistance to marine environments
Well superior to CuNi10 (90/10) for :
High-speed seawater
Highly saline or impure environments
Submerged applications or applications in prolonged contact with water
Resists crevice corrosion, pitting and biofouling
- Good TIG weldability
Clean, stable fusion with little spatter
Compatible with:CuNi30, CuNi10 and certain copper alloys
Sometimes dissimilar welding (subject to thermal and chemical compatibility)
Enables tight, strong, highly durable welds over the long term
- Balanced physical properties
Good thermal conductivity, good electrical conductivity
Resists thermal expansion, ideal for complex systems
Good resistance to temperature variations and thermal cycling
