ERNiCr-3

Class: ERNiCr-3
AWS: A5.14

Conforms to Certification: AWS A5.14 | ASME SFA A5.14

Weld Process: GTAW Welding Process

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
.035 x 36
.045 x 36
1/16 x 36
3/32 x 36
1/8 x 36
5/32 x 36

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 TIG, MIG, and SAW Welding of Nickel Alloys

Process Diameter of Wire Voltage (V) Amperage (A) Gas
Tig .035 inches x 36 12 – 15 60 – 90 100% Argon
.045 inches x 36 13 – 16 80 – 110 100% Argon
1/16 inches x 36 14 – 18 90 – 130 100% Argon
3/32 inches x 36 15 – 20 120 – 175 100% Argon
1/8 inches x 36 15 – 20 150 – 220 100% Argon

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.