71045045 - Ampco-Trode 46 0.045 MIG Wire 30lb Spool ERCuNiAl

Reliable Bronze MIG Wire for Marine & Heavy Repair

When you are tackling a cracked ship propeller, a worn pump casing, or a heavy-duty valve, you need a wire that flows smoothly and leaves a deposit tougher than the original metal. Ampco-Trode 46 (ERCuNiAl) is that wire. This 30lb spool of 0.045" MIG wire is the go-to solution for welding nickel-aluminum bronze and other copper alloys. It is famous in the industry for its ability to handle the nastiest environments—specifically saltwater and corrosive chemicals—without pitting or failing over time.

As a welder, you know that feeding bronze wire can sometimes be tricky, but this product is designed for consistent feedability. It runs best with 100% Argon shielding gas, producing a stable arc and a clean bead profile. It is not just for matching bronze base metals; you can use Ampco-Trode 46 to join copper-nickels to steel or even for overlay work on cast iron where you need a buffer layer or a wear-resistant face. The weld puddle is controllable, allowing for out-of-position welding when necessary, although flat positioning will always give you the prettiest stack of dimes.

This wire is a lifesaver for maintenance jobs. If you are building up a worn shaft or repairing a bronze casting that has suffered from cavitation (that sponge-like erosion you see on props), this alloy fills the void with dense, high-strength metal. It grinds and machines well after welding, so you can bring the part back to tolerance with a finish that looks factory-new. Don't risk a callback on a marine job by using a standard bronze wire; step up to the nickel-aluminum formulation of Ampco-Trode 46 for repairs that last.