Class: ERNiCrMo-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 = 0.50 max	Ni = 58.0 min
Fe = 5.0 max	Al = 0.40 max
P = 0.02 max	Ti = 0.40 max
S = 0.015 max	Cr = 20.0 – 23.0
Si = 0.50 max	Nb + Ta = 3.15 – 4.15
Mo = 8.0 – 10.0	Other = 0.50 max

Available Sizes
.035 x 36
.045 x 36
1/16 x 36
3/32 x 36
1/8 x 36

Application
ERNiCrMo-3 (NA625) is used primarily for gas tungsten and gas metal arc and matching composition base metals. It is also used for welding Inconel 601 and Incoloy 800. It can be used to weld dissimilar metal combinations such as steel, stainless steel, Inconel and Incoloy alloys.

Deposited Chemical Composition % (Typical)
C = 0.09	Si = 0.12	Ni = Balance
Mn = 0.05	Cr = 21.9	Nb/Ta = 3.65
Fe = 0.62	Mo = 8.70

 

Deposited All Weld Metal Properties % (AW)
Tensile Strength	114,000 psi
Yield Strength	66,000 psi
Elongation	35%

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.