Welders Choice 59803288 Mig Wire Ercusi-a Silicon Bronze

Product Description

The WELDERS CHOICE 59803288 is a silicon bronze MIG welding wire classified to the ERCuSi-A industry specification. It measures 0.030 inches in diameter and comes on a 2-pound roll. This wire is designed for gas metal arc welding (GMAW) of copper-based alloys, dissimilar metals, and thin-gauge steel where low heat input and minimal distortion are priorities. It is commonly used by welders, fabricators, and maintenance technicians who require a copper-silicon filler metal for brazing-style MIG processes or automotive sheet metal repair.

ERCuSi-A silicon bronze wire is well suited for joining copper, brass, bronze, and galvanized or coated sheet steel. Its low melting point relative to steel filler wires reduces burn-through risk on thin materials. Typical applications include automotive bodywork, HVAC copper tubing repairs, ornamental metalwork, and general fabrication where a copper-toned weld appearance is acceptable or required. The 2-pound roll fits standard MIG spool hubs used in most shop and portable wire-feed welders.

Key Features

• ERCuSi-A industry specification for silicon bronze copper-silicon filler metal
• 0.030 inches diameter suits thin-gauge and light-to-medium fabrication work
• 2-pound roll weight compatible with standard MIG welder spool mounts
• Low heat input process reduces warping and burn-through on coated or thin metals
• Copper-silicon alloy provides good flow characteristics and a clean weld bead appearance

Compatibility

Designed as an OEM-style replacement-compatible ERCuSi-A silicon bronze MIG wire for use in standard GMAW wire-feed welders equipped with a 0.030-inch drive roll and contact tip setup.

Installation Notes

Installation and use should be performed by a qualified welder familiar with GMAW processes and applicable AWS safety guidelines. Before loading the spool, verify the drive roll groove size and contact tip diameter both match the 0.030-inch wire. Use appropriate shielding gas, typically 100 percent argon, as specified for ERCuSi-A wire. Always wear proper PPE including an auto-darkening welding helmet, gloves, and flame-resistant clothing during all welding operations.