Copper Alloy

JACKSUN ALLOY CuAl A2

AWS/ASME: A5.7 ERCuAl-A2

JACKSUN ALLOY-CuAl-A2 is a solid copper-aluminium alloy wire designed for MIG/TIG welding of copper-aluminium alloys.

  • Offers excellent corrosion resistance and wear resistance.
  • Suitable for joining copper, bronze, and aluminium bronze alloys.
  • Produces smooth, stable arc with minimal spatter.
  • Ideal for marine, chemical, and industrial equipment applications.
Technical Data

Product Specifications

1. Typical Chemical Composition

ZnAlFeNiMn
≤ 0.028 – 11≤ 1.5≤ 0.5≤ 0.3

2. Typical Mechanical Properties

PropertyUTS (MPa)Yield Strength (MPa)Elongation (%)
Requirement (AWS A5.7 ERCuAl-A2)≥ 415≥ 180≥ 12
Typical Values340 – 480190 – 32014 – 18

3. Recommended Welding Parameters — AWS A5.7 ERCuAl-A2

Welding PositionCurrent (A)Voltage (V)Shielding GasGas Flow (L/min)
Flat / Horizontal180 – 28018 – 24100% Ar12 – 20
Vertical / Overhead150 – 22016 – 22100% Ar10 – 18
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