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
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.