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.

1. Typical Chemical Composition of Weld Metal (% by weight)

Zn	Al	Fe	Ni	Mn
≤ 0.02	8 – 11	≤ 1.5	≤ 0.5	≤ 0.3

2. Typical Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)
Typical Values	340 – 480	190 – 320	14 – 18

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

Welding Position	Current (A)	Voltage (V)	Shielding Gas	Gas Flow (L/min)
Flat / Horizontal	180 – 280	18 – 24	100% Ar	12 – 20
Vertical / Overhead	150 – 220	16 – 22	100% Ar	10 – 18

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