Product Description

SCu7158 is a copper-nickel alloy welding wire containing approximately 30% nickel, with controlled additions of manganese and iron.
It is specifically designed for welding Cu-Ni alloys and dissimilar joints between copper alloys and steel, where high corrosion resistance and long service life are required.

The weld metal exhibits excellent resistance to seawater corrosion, stable mechanical properties, and reliable weldability.

Main Applications

SCu7158 welding wire is widely used for:

Marine and shipbuilding structures

Seawater pipelines and fittings

Heat exchangers, condensers, and evaporators

Desalination and offshore equipment

Chemical and petrochemical processing equipment

Copper-to-steel dissimilar metal welding

Welding Processes

TIG (GTAW)

MIG (GMAW)

Commonly Supplied Sizes

SCu7158 welding wire is commonly supplied in the following diameters:

1.0 mm

1.2 mm

1.6 mm

2.0 mm

Custom diameters and supply forms (spool or straight rods) are available upon request.

Typical Chemical Composition (wt.%)

Cu: Balance

Ni: 29–32%

Mn, Fe: Minor additions