ERNiCu-7

* Specification

AWS/ASME Spec 5.14

AWS Class ERNiCu-7

UNS N04060

* Chemical Composition,%

CMnSiSPNiFeCuAlTi
≤0.15≤4≤1.25≤0.015≤0.0262-69≤2.5Rest≤1.251.5-3.0

* Typical Welding Parameter & Mechanical Property

DiameterProcessVoltAmpsShielding Gas
Inmm
0.0350.9GMAW26-29150-190Spray Transfer 100% Argon
0.0451.2GMAW28-32180-220
1/161.6GMAW29-33200-250
1/161.6GTAW14-1890-130100% Argon
3/322.4GTAW15-20120-175100% Argon
1/83.2GTAW15-20150-220100% Argon
Tensile Strength MPa(ksi)Yield Strength MPa(ksi)Elongation %
AWS requirement480(70)Not specifiedNot specified
Typical results as welded530(77)360(53)34

* Feature

Dissimilar welding applications include joining alloys to Nickel 200 and copper-nickel alloys.

Widely used in marine applications because of its good resistance to the corrosive effects of seawater and brackish waters.

Can be used for MIG overlay on steel after a first layer with nickel 208.

* Application

Marine