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EXCUSIA00000350M00 - Exocor ERCuSi-A Silicon Bronze MIG Wire .035 30lb

Packaging: 30lb spool
$20.84/lb

Package Price:

$625.20/30lb spool

Usually ships within 3-5 business days

OVERVIEW

Premium Exocor ERCuSi-A Silicon Bronze MIG Wire

The Exocor ERCuSi-A Silicon Bronze MIG Wire is a high-performance copper-based consumable designed for specialized industrial welding and brazing applications. Formulated with approximately 3% silicon and small amounts of manganese and tin, this alloy (UNS C65600) provides excellent flow characteristics, mechanical strength, and corrosion resistance. It is manufactured to meet strict AWS A5.7 specifications, ensuring consistent chemistry and performance across every spool. This 30lb spool of 0.035-inch diameter wire is precision layer-wound, which is critical for automated and semi-automated welding processes to prevent tangling and ensure smooth wire feeding through the liner and contact tip.

This wire is primarily utilized for Gas Metal Arc Welding (GMAW) of copper-silicon, copper-zinc, and copper-to-steel base metals. It is widely recognized in the fabrication industry for its utility in surfacing applications where parts are subject to corrosion. The silicon content acts as a deoxidizer, helping to reduce porosity and improve the soundness of the weld metal. When used on steel, it minimizes dilution and provides a ductile, crack-resistant deposit. The wire typically requires 100% Argon shielding gas, though Argon/Helium mixtures can be employed for thicker sections requiring higher heat input.

Industrial maintenance and repair operations frequently rely on Exocor Silicon Bronze for overlaying surfaces that require low magnetic permeability and resistance to saline environments. Its versatility extends to the HVAC and chemical processing industries, where joining dissimilar metals is a common requirement. The 30lb spool size is optimized for industrial wire feeders, reducing downtime associated with frequent spool changes in high-volume production environments. By choosing Exocor, fabricators benefit from a consumable that delivers stable arc transfer, minimal spatter, and high-quality bead aesthetics.

Additional Information
Packaging Description:30lb spool
Weld Process:MIG
Grade:Silicon Bronze
Packaging:25-33lb spool, 30lb spool
Brand:Exocor
Diameter:0.035
Position:n/a
Polarity:DC+, NA
AWS Classification:ERCuSi-A
Material Composition:Copper-Silicon, Silicon Bronze
Wire Diameter:0.035"
Shielding Gas Requirement:100% Argon, Argon/Helium Mixtures
Spool Size:30lb
Applications:Artistic Fabrication, Automotive Body Repair, Joining Copper to Steel, Surfacing
Wire Type:Solid
----- new values below ----
AWS Classification:ERCuSi-A
Material Composition:Silicon Bronze, Copper-Silicon
Wire Diameter:0.035"
Shielding Gas Requirement:100% Argon, Argon/Helium Mixtures
Spool Size:30lb
Applications:Automotive Body Repair, Joining Copper to Steel, Artistic Fabrication, Surfacing
Wire Type:Solid
brand:exocor
diameter:0-035
grade:silicon-bronze
packaging:30lb-spool
packaging-description:30lb-spool
weld-process:mig
polarity:dc

INCLUDED

  • 1 x 30lb Spool of Exocor ERCuSi-A Silicon Bronze MIG Wire (.035")

APPLICATIONS

  • Automotive Body Repair: MIG brazing of galvanized steel panels to prevent warping and preserve zinc coating.
  • Dissimilar Metal Joining: Welding copper or brass to mild or stainless steel.
  • Surfacing & Overlay: Applying corrosion-resistant layers to steel parts or rebuilding worn bearing surfaces.
  • Artistic Fabrication: Sculptural welding requiring color matching to bronze or copper.
  • HVAC & Plumbing: Fabrication of copper tanks, ducts, and piping systems.

FAQ

For most applications, 100% Argon is the recommended shielding gas. It provides a stable arc and clean weld deposit. For thicker materials, an Argon/Helium mix can be used to increase heat input.

Yes, but it is technically a brazing process (MIG Brazing) when used on steel because the base metal is not melted. It is excellent for joining steel to copper or for joining galvanized steel sheets.

This wire meets the AWS A5.7 classification for ERCuSi-A.

This is a 30lb (13.6kg) spool with a wire diameter of 0.035 inches (0.9mm).

Silicon Bronze is generally very fluid. While it can be used out-of-position with pulsed MIG or short-circuit transfer, it is easiest to control in the flat and horizontal positions.

Since Silicon Bronze is softer than steel but harder than aluminum, a standard steel liner often works, but a Teflon or plastic liner is recommended to prevent shaving the wire and ensure smooth feeding, especially over long distances.

Settings vary by machine and material thickness, but typically you would run slightly lower voltage than you would for mild steel of the same diameter. Start around 18-22V and adjust wire speed to achieve a smooth spray or short-circuit transfer.

No, this is a solid wire requiring external gas shielding.