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A spool of copper welding wire on a plastic reel

Value Brand

Value Brand WESTWARD 30XP78 MIG Welding Wire Silicon Bronze 0.045 in

SKU CH-V87N-A8GPP

Silicon bronze MIG wire for joining copper, brass, bronze, cast iron and steel with 50 ksi tensile strength

  • TypeWelding Supplies
  • Silicon-bronze wire joins dissimilar metals like brass to steel
  • ERCuSi-A classification confirms AWS-standard composition for reliable MIG welds
  • 045 in diameter suits a wide range of MIG gun tips
  • 50 ksi tensile strength delivers strong joints on copper and cast iron
  • Two-pound plastic spool feeds smoothly and stores without tangling

WESTWARD ERCuSi-A Silicon Bronze Wire

This WESTWARD 30XP78 welding wire is a silicon bronze filler metal classified to AWS ERCuSi-A. It is supplied as a 0.045 in diameter wire on a 2 lb plastic spool for MIG welding processes. The copper-based alloy joins dissimilar metals including brass, bronze, cast iron, copper and steel.

Suited for dissimilar metal joints and brazing

The wire suits fabricators joining brass to cast iron or steel, bronze to cast iron or steel, and copper to steel. It operates on AC or DCEP current polarity. Buyers needing a filler wire for matching alloy repairs on single-base metals or a different wire diameter should look at other options.

0.045 in diameter defines equipment fit

The 0.045 in wire diameter determines compatibility with your MIG gun liner, contact tip and drive rolls. It also sets the deposition rate and amperage range for the job. Verify your machine and consumables accept this specific size before purchasing.

Highlights

  • Silicon-bronze wire joins dissimilar metals like brass to steel
  • ERCuSi-A classification confirms AWS-standard composition for reliable MIG welds
  • 045 in diameter suits a wide range of MIG gun tips
  • 50 ksi tensile strength delivers strong joints on copper and cast iron
  • Two-pound plastic spool feeds smoothly and stores without tangling

Specifications

BrandWESTWARD
TypeWelding Supplies

Questions about this item

How do I know if the 0.045 in diameter is the right wire size for my MIG welder?

Match the 0.045 in wire diameter to your welder's drive rolls and contact tip size; this spool is designed for MIG (GMAW) processes using ERCuSi-A silicon bronze wire.

What does the 50 ksi tensile strength mean for my welds on brass or cast iron?

The 50 ksi as-welded tensile strength indicates the joint's pull-apart resistance when joining materials like brass to steel or bronze to cast iron using DCEP current.

Which welding current setting works with this ERCuSi-A silicon bronze wire?

This wire is designated for AC or DCEP polarity; set your MIG machine to DCEP for most silicon bronze applications on copper, brass, or cast iron.

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