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EXCUALA30001250T00 - Executive ERCuAl-A3 Aluminum Bronze TIG Rod 1/8"

Packaging: 10 lb tube
$71.62/lb

Package Price:

$716.20/10 lb tube

Usually ships within 3-5 business days

SKU: EXCUALA30001250T00 Categories: ,

OVERVIEW

High-Performance Aluminum Bronze TIG Filler Metal

The Exocor Executive ERCuAl-A3 Aluminum Bronze TIG Rod is a premium quality filler metal designed for the Gas Tungsten Arc Welding (GTAW) process. Manufactured to meet strict AWS A5.7 specifications, this rod is classified as ERCuAl-A3. It is characterized by a higher aluminum content than the standard A2 grade, typically containing between 10% and 11% aluminum. This specific composition results in a deposit with significantly higher yield strength, tensile strength, and hardness, making it an exceptional choice for applications where mechanical integrity and durability are paramount.

This alloy is specifically engineered for joining and repairing aluminum bronze castings of similar composition. However, its utility extends far beyond simple joining. The Executive ERCuAl-A3 is widely utilized for overlay applications on bearing surfaces, wear plates, and other components subjected to heavy metal-to-metal wear or high compressive loads. Its microstructure provides excellent resistance to galling and scoring, which is critical for moving parts in heavy machinery. Furthermore, the alloy exhibits outstanding corrosion resistance, particularly in marine environments involving salt water and brackish water, as well as resistance to many acids.

Technically, this rod requires clean joint preparation and proper shielding gas management (typically 100% Argon) to prevent oxide inclusion. It can be used to weld dissimilar metals, such as joining aluminum bronzes to steel, cast iron, or copper-nickel alloys, provided proper procedures are followed. The 1/8-inch (3.2mm) diameter offers good deposition rates for medium-to-heavy wall thicknesses. Each rod is 36 inches in length and stamped for identification, ensuring quality control and traceability in industrial environments.

Technical Specifications

  • Classification: AWS A5.7 ERCuAl-A3
  • Diameter: 1/8" (3.2mm)
  • Length: 36"
  • Typical Hardness: 160-200 HB (Brinell)
  • Tensile Strength: 77,000 - 85,000 psi
Additional Information
Weld Process:TIG
Grade:Aluminum Bronze, NA
Diameter:2.5mm, 3.2mm
AWS Classification:ERCuAl-A3
Material Composition:Aluminum Bronze
Diameter (Imperial):1/8"
Tensile Strength:Approx. 77,000 - 85,000 psi
Hardness:160 - 200 HB
----- new values below ----
AWS Classification:ERCuAl-A3
Material Composition:Aluminum Bronze
Rod Length:36 Inches
Diameter Imperial:1/8"
Tensile Strength:Approx. 77,000 - 85,000 psi
Hardness:160 - 200 HB
brand:exocor
diameter:3-2mm
weld-process:tig
grade:Aluminum Bronze

INCLUDED

  • 10 lb Tube of Executive ERCuAl-A3 TIG Rods (1/8" Diameter)
  • Product Label with Heat Number and Certifications

APPLICATIONS

  • Marine Components: Ship propellers, rudders, and pump housings exposed to seawater.
  • Wear Overlays: Bearing surfaces, wear rings, valve seats, and guides.
  • Heavy Machinery: Repairing aluminum bronze castings and dies.
  • Dissimilar Metal Joining: Welding aluminum bronze to steel, cast iron, or copper alloys.
  • Chemical Industry: Components requiring resistance to non-oxidizing acids.

FAQ

ERCuAl-A3 contains a higher percentage of aluminum (approx. 10-11%) compared to A2. This makes the A3 alloy harder and stronger, providing better wear resistance, though it is slightly less ductile.

100% Argon is typically recommended for TIG welding with Aluminum Bronze rods. For thicker sections, an Argon/Helium mix may be used to increase heat input.

Yes, ERCuAl-A3 is often used for overlaying wear-resistant surfaces onto steel or for joining aluminum bronze to steel. However, care must be taken to minimize dilution with the base metal.

This specific product is 0.125 inches (1/8 inch) or approximately 3.2mm in diameter.

Preheating is often required, especially for heavy sections or when welding copper alloys, to ensure proper fusion and prevent cracking. Preheat temperatures typically range from 300°F to 500°F depending on thickness.

Aluminum Bronze TIG welding is generally performed using Direct Current Electrode Negative (DCEN). AC is typically used for Aluminum alloys, not Aluminum Bronze.

It is widely used for bearing overlays, ship propellers, pump parts, and anywhere high strength and corrosion resistance are needed.

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