Class: ERNiCu-7

AWS: A5.14

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

Weld Process: GTAW Welding Process

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

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%

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.