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ERCuAl-A2

Class: ERCuAl-A2

AWS: A5.7

Conforms to Certification: AWS – 5.7                ASME SFA A5.7

Aluminum Bronze-A2 Tig Welding Process (GTAW)

AWS Chemical Composition Requirements
Cu + Ag = Remainder Zn = 0.02 max
Fe = 0.5 – 1.5 Si = 0.10 max
Al = 8.5 – 11.0 Pb = 0.02 max
Other = 0.50 max

Available Sizes
.035 x 36
.045 x 36
1/16 x 36
3/32 x 36
1/8 x 36
3/16 x 36
5/32 x 36

Application
ERCuAl-A2 can be used where welds on brass are required to have high tensile strength and must be corrosion resistance. It is an excellent alloy for joining Manganese Bronze castings and other Aluminum Bronze materials, malleable iron, steel and dissimilar metals.

Deposited Chemical Composition % (Typical)
Dependent on weld process

(Nominal) All Weld Metal Properties Requirements
Tensile Strength 79,000 psi
Yield Strength 35,000 psi
Elongation 28%

 

Recommended Welding Parameters
Process Diameter of Wire Voltage (V) Amperage (A) Gas Feed
TIG 1/16 inches x 36 –0– 70-120 100% Helium or 100% Argon 40-55 CFH
GTAW 3/32 inches x 36 –0– 120-160 100% Helium or 100% Argon 40-55 CFH
1/8 inches x 36 –0– 170-230 100% Helium or 100% Argon 40-55 CFH

Preheat / Interpass Recommendations
Preheating copper – base alloys is frequently unnecessary provided section thicknesses are not unusually heavy.
Preheat and Interpass temperatures will vary depending on section thickness, selected weld process and other variables.