Welders Choice 59803296 Mig Wire Ercusi-a Silicon Bronze

Product Description

The WELDERS CHOICE 59803296 is a silicon bronze MIG welding wire classified to the ERCuSi-A industry specification. This wire is used for gas metal arc welding (GMAW) of copper alloys, silicon bronze base metals, and dissimilar metal joints where a ductile, corrosion-resistant deposit is required. The wire measures 0.030 inches in diameter and comes supplied on an 11-pound roll. It is commonly installed by certified welders and metal fabricators working in HVAC, plumbing, automotive, and marine applications where copper-based filler is specified.

This ERCuSi-A wire suits both light fabrication and repair work. Typical applications include brazing and welding of copper pipe assemblies, sheet metal joining on thin-gauge steel, and galvanized or coated steel work where spatter reduction and weld appearance are priorities. The silicon bronze deposit offers good flow characteristics and a smooth bead profile in flat, horizontal, and out-of-position welds.

Key Features

• ERCuSi-A industry specification for silicon bronze filler wire
• 0.030-inch wire diameter for fine-deposition GMAW work
• 11-pound roll for extended production or service use
• Silicon bronze alloy provides corrosion-resistant weld deposits
• Suitable for dissimilar metal joints and thin-gauge applications

Compatibility

Designed as an ERCuSi-A-specification replacement filler wire for MIG welders set up for copper-alloy GMAW; verify your wire feeder drive roll groove size matches the 0.030-inch wire diameter before installation.

Installation Notes

Installation and use should be performed by a qualified welder following applicable AWS and shop safety standards. Ensure the welding machine, wire feeder, and shielding gas supply are properly configured for copper-alloy wire before loading the spool. Disconnect and lock out power to the welding system before changing wire or drive rolls. Always wear appropriate PPE including welding helmet, gloves, and respiratory protection when welding copper alloys.