ERNiCr-3
Class: ERNiCr-3
AWS: A5.14
Conforms to Certification: AWS A5.14 | ASME SFA A5.14
Weld Process: GMAW & ASAW Welding Processes
| AWS Chemical Composition Requirements | |
| C = 0.10 max | Cu = 0.50 max |
| Mn = 2.5 – 3.5 | Ni = 67.0 min |
| Fe = 3.0 max | Co = 0.12 max |
| P = 0.03 max | Ti = 0.75 max |
| S = 0.015 max | Cr = 18.0 – 22.0 |
| Si = 0.50 max | Cb/Ta = 2.0 – 3.0 |
| Other 0.50 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
ERNiCr-3 (NA82) is used for welding Inconel alloy 600 and Incoloy 800, overlaying on steel and various dissimilar metal welding applications. Weld processes which can be used include GTAW, GMAW and ASAW.
| Deposited Chemical Composition % (Typical) | ||
| C = 0.03 | P = 0.003 | Ni = 72.9 |
| Mn = 2.85 | S = 0.001 | Cr = 20.4 |
| Fe = 1.1 | Si = 0.22 | Cb/Ta = 2.5 |
| Deposited All Weld Metal Properties % (AW) | |
| Tensile Strength | 85,500 psi |
| Yield Strength | 52,500 psi |
| Elongation | 38% |
Deposited Charpy-V-Notch Impact Properties %
Not applicable
| Recommended Welding Parameters for MIG and SAW Welding of Nickel Alloys | ||||
| 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.