Copper Alloy

JACKSUN ALLOY CuNiAl

AWS/ASME: A5.7 ERCuNiAl EN ISO Equivalent: ISO 24373-A: CuNiAlDescription

JACKSUN ALLOY-CuNiAl is a solid copper-nickel-aluminium alloy wire designed for MIG/TIG welding of copper-nickel and copper-nickel-aluminium alloys. Excellent corrosion resistance in marine and chemical environments. Suitable for joining copper, bronze, nickel-aluminium bronze, and copper-nickel alloys. Provides smooth, stable arc and high-quality welds .Ideal for shipbuilding, marine piping, heat exchangers, and industrial equipment.

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

Zn	Ni	Al	Fe	Mn	Si
≤ 0.10	4 – 5.5	8.50-9.50	3.00-5.00	0.60-3.50	≤ 0.10

2. Typical Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)
Typical Values	480 – 580	380 – 460	14 – 28

3. Recommended Welding Parameters — AWS A5.7 ERCuNiAl

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

Quality Assured

Tested for consistent performance.

Fast Delivery

Reliable and on-time shipping.

Secure Payment

100% secure payment options.

Expert Support

Our team is here to help you.