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31511A73 - UTP A 73 Bronze TIG Welding Rod 3/32" 10lb Tube

Packaging: 4.54kg tube
$114.00/kg

Package Price:

$517.56/4.54kg tube

Usually ships within 3-5 business days

OVERVIEW

Professional Bronze Welding with UTP A 73

Take your copper and bronze projects to the next level with the UTP A 73 TIG Rod. Whether you are repairing a vintage brass fitting, fabricating a custom copper tank, or creating artistic bronze sculptures, this 3/32" rod delivers the smooth, consistent performance professional welders demand. Manufactured by UTP (Voestalpine Böhler Welding), this rod is formulated to flow easily and produce clean, defect-free welds.

One of the standout features of the UTP A 73 is its versatility. It's not just for joining; it's excellent for surfacing worn parts. If you have a shaft or bearing surface that has worn down, you can build it back up with this rod to extend the part's life. The deposit is tough and resists corrosion, making it perfect for marine applications or outdoor sculptures that face the elements.

Why Choose UTP A 73?

Welders love this rod for its stability under the arc. Unlike inferior bronze rods that can pop and spatter, the UTP A 73 runs smoothly with pure Argon gas. The 10lb tube ensures you have plenty of material for large jobs, and the rigid packaging keeps your rods straight and free from contaminants until you're ready to burn them. It works best on DCEN polarity, giving you deep penetration and a flat, aesthetically pleasing bead.

  • Easy to Run: Smooth arc characteristics with minimal spatter.
  • Great Color Match: Blends well with many bronze and brass base metals.
  • Multi-Use: Great for joining, building up, and TIG brazing.
  • Reliable Quality: Consistent diameter and alloy composition in every rod.
Additional Information
Brand:UTP
Diameter:2.5mm (3/32")
Packaging:10 lb Tube
Packaging Description:4.54kg-tube
Weld Process:TIG (GTAW)
Grade:Bare Bronze
Material Composition:Copper-Tin Alloy (Bronze), CuSn6
AWS Classification:ERCuSn-A
Wire Diameter:3/32" (2.4mm)
Shielding Gas Requirement:100% Argon, Argon/Helium Mix
Applications:Joining Copper, Surfacing Bronze, Brass Repair
Position:N/A
Polarity:N/A

INCLUDED

  • 1 x 10lb (4.54kg) Tube of UTP A 73 TIG Rods (3/32" Diameter)
  • Product Information Sheet

APPLICATIONS

  • Joining of Copper-Tin bronzes (CuSn)
  • Welding of Copper-Zinc brasses (CuZn)
  • Surfacing of bearing bushes and slide rails
  • Marine component repair (propellers, fittings)
  • Artistic bronze fabrication and sculpture
  • TIG Brazing of steel and cast iron

FAQ

UTP A 73 typically corresponds to the AWS A5.7 classification ERCuSn-A (Phosphor Bronze).

100% Argon is the standard shielding gas. For thicker sections, an Argon/Helium mixture can be used to increase heat input.

DCEN (Direct Current Electrode Negative) is recommended for TIG welding with this alloy to ensure a stable arc and proper heat concentration.

Yes, UTP A 73 can be used for TIG brazing (braze welding) of steel and cast iron, often used when lower heat input is desired to minimize distortion.

For pure copper or thick bronze sections, preheating (often to 200-300°C) is recommended to counteract the high thermal conductivity of the base material.

These rods are 3/32 inch in diameter, which is approximately 2.4mm.

Yes, the Copper-Tin alloy offers excellent corrosion resistance, making it suitable for marine environments and seawater applications.

This is sold by weight. A 10lb (4.54kg) tube of 3/32" rods typically contains roughly 120-150 rods, depending on the exact length and density.