ERNiCu-7
Class: ERNiCu-7
AWS: A5.14
Conforms to Certification: AWS A5.14 | ASME SFA A5.14
Weld Process: GMAW, ASAW Welding Processes
| AWS Chemical Composition Requirements | |
| C = 0.15 max | Cu = Remainder |
| Mn = 4.0 max | Ni = 62.0 – 69.0 |
| Fe = 2.5 max | Al = 1.25 max |
| P = 0.02 max | Ti = 1.5 – 3.0 |
| S = 0.015 max | Other = 0.50 max |
| Si = 1.25 max | |
Available Sizes |
|
| Diameter X Spool Sizes | Diameter X Coil Sizes |
| .035 x 33# | 1/16 x COIL |
| .045 x 33# | 3/32 x COIL |
| 1/16 x 33# | 1/8 x COIL |
| 5/32 x COIL | |
Application
ERNiCu-7 (NA60) is a copper-nickel alloy base wire for GMAW and GTAW welding of Monel alloys 400 and 404. Also used for overlaying steel after first applying Layer of 610 nickel.
| Deposited Chemical Composition % (Typical) | ||
| C = 0.05 | P = 0.008 | Ni = 65.9 |
| Mn = 3.45 | S = 0.002 | Ti = 2.25 |
| Fe = 0.40 | Si = 0.77 | Al = 0.10 |
| Cu = Balance | ||
| Deposited All Weld Metal Properties % (AW) | |
| Tensile Strength | 76,000 psi |
| Yield Strength | 51,000 psi |
| Elongation | 34.5% |
Deposited Charpy-V-Notch Impact Properties %
Not applicable
Recommended Welding Parameters for MIG and SAW Welding of Nickel Alloys |
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| Process | Diameter of Wire | Voltage (V) | Amperage (A) | Gas |
| MIG | .035 inches | 26 – 29 | 150 – 190 | 75 % Argon +25% Helium |
| .045 inches | 28 – 32 | 180 – 220 | 75 % Argon +25% Helium | |
| 1/16 inches | 29 – 33 | 200 – 250 | 75 % Argon +25% Helium | |
| SAW | 3/32 inches | 28 – 30 | 270 – 350 | Suitable Flux May Be Used. |
| 1/8 inches | 29 – 32 | 350 – 450 | Suitable Flux May Be Used. | |
| 5/32 inches | 30 – 33 | 400 – 550 | Suitable Flux May Be Used. | |
Note: Other shielding Gases may be used for Mig 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.