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Discover our Copper Nickel Welding Electrodes range, built to deliver strength and flexibility across a range of industrial applications. Our products are highly valued for their quality and enduring durability, satisfying industry benchmarks for demanding environments. We put customer satisfaction first by delivering customized solutions, competitive pricing, and prompt delivery. Elevate your business with our dependable products, supported by a firm dedication to excellence.
| Welding Process | Form | Type | AWS Spec | BS Spec |
| MMA | Flux-coated | Cu-30% Ni | A5.6 ECuNi | In draft |
| (SMAW) | electrodes | |||
| 65% Ni-Cu | A5.11 ENiCu-7 | BS EN ISO 14172 | ||
| E Ni4060 | ||||
| TIG (GTAW) | Wire in | Cu-30% Ni | A5.7 ERCuNi | BS EN ISO 24373 |
| MIG (GMAW) | straight | S Cu 7158 | ||
| lengths or spools | 65% Ni-Cu | A5.14 ERNiCu-7 | BS EN ISO 18274S Ni 4060 |
| Alloy | UNS No | CuMin. | Ni | Fe | MnMax. | ZnMax. | CMax. | PbMax. | SMax. | PMax. | OtherMax. |
| 90-10 | C70620 | >86.5 | 9-11 | 1-1.8 | 1.0 | 0.5 | 0.05 | 0.02 | 0.02 | 0.02 | 0.5 |
| 70-30 | C71520 | >65.0 | 29-33 | 0.4-1 | 1.0 | 0.5 | 0.05 | 0.02 | 0.02 | 0.02 | 0.5 |
| Alloy | 0.2% Proof Strength Min. | Tensile Strength Min. | Elongation Min. | Hardness |
| N/mm2* | N/mm2* | % | HV | |
| 90-10 | 100 | 300 | 30 | 90 |
| 70-30 | 120 | 350 | 35 | 100 |
| * 1N/mm2 | is equivalent to 145 psi |
| Y.P. N/mm2 (Ksi) | 327(47) |
| T.S. N/mm2 (Ksi) | 425(62) |
| EI. (%) | 38 |
| I.V. oC,J (oF,Ft-LBs.) | – |
At Koasteel, we’re proud to be the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for every one of your piping requirements. With cutting-edge production facilities strategically situated in the New Zealand, we maintain an extensive inventory of more than 25,000 tons of top-quality materials kept ready in stock.
Reach out to us for a fast quote tailored to your requirement.
We supply these Copper Nickel Welding Electrodes in accordance with DIN, ISO, JIS or ANSI Standard.
Copper Nickel Welding Electrodes serve applications as varied as the industries that use them, led chiefly by the aerospace, railway, construction and automotive sectors along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Yes, copper-nickel welding electrodes can experience galvanic corrosion when combined with dissimilar metals in environments rich in electrolytes. This type of corrosion arises from the potential difference between the metals, which results in faster degradation. Choosing the right materials and applying protective coatings can help reduce this risk in welding applications.
Mail: sales@koasteel.nz