SB035-30 - ERCuSi-A Silicon Bronze MIG Wire .035 30lb Spool

Premium Silicon Bronze MIG Wire .035" - 30lb Spool

The SB035-30 Silicon Bronze MIG Wire is a premium copper-based filler metal designed for versatility and performance in both industrial fabrication and artistic applications. Packaged in a substantial 30lb spool, this .035" diameter wire is perfect for workshops requiring consistent feedability and strong, corrosion-resistant joints. Silicon Bronze is widely recognized for its ability to join dissimilar metals and its lower melting point compared to standard steel wires, making it an essential inventory item for diverse repair and fabrication needs.

At Josef Gas, we provide welding consumables that meet professional standards. This wire (classified as ERCuSi-A) is primarily composed of copper with silicon and manganese added to improve mechanical properties and deoxidation. It is the go-to choice for welding copper, copper-silicon, and copper-zinc base metals to themselves or to steel. Its excellent wetting action and fluidity make it a favorite for achieving aesthetically pleasing welds with minimal spatter.

One of the standout features of this product is its utility in MIG brazing. Because it melts at a lower temperature than steel, it minimizes heat distortion and burn-through, making it exceptional for thin sheet metal work. It is also frequently used on galvanized steel because it does not disturb the zinc coating as aggressively as standard steel wire, preserving the base metal's corrosion resistance. Whether you are repairing cast iron components, working on automotive body panels, or creating metal art, this 30lb spool ensures you have the supply needed for long-duration projects.