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Product Catalog

ERCuAl-A2 (Alum Bronze A2)


Alloy Type:

ERCuAl-A2 Aluminum Bronze A-2 filler metal is an intermediate-strength aluminum bronze alloy used for welding aluminum bronze plate fabrications and for joining dissimilar metals such as cast iron, carbon steels, copper, bronze and copper-nickel materials.  It is excellent for building up or overlaying metal for wear and corrosion resistant surfaces.  Weld deposits exhibit high mechanical properties, tensile strength, yield strength and hardness.

 

Typical Applications:  marine maintenance and repair; wear surface reconstruction; cast repair; joining aluminum bronze of similar composition

 

AWS Class: ERCuAl-A2 Certification:  AWS A5.7/A5.7M:2007
Alloy:  ERCuAl-A2 ASME SFA A5.7

 

Welding Position:

 

Current:

AC-DCEP

 

Tensile Strength, kpsi: 79
Yield Strength, kpsi 35
Elongation in 2” (%): 28

 

 

 

 

Typical Wire Chemistry as per AWS A5.7(single values are maximum)

Cu including Ag Zn Fe Si Al Pb Other
Remainder 0.02 0.5-1.5 0.10 8.5-11.0 0.02 0.50

 

Typical Welding Parameters
Diameter Process Volt  

Amps

GAS
in (mm)
 1/16  (1.6) GTAW 0 70-120 100% Helium or 100% Argon 40-55 CFH
 3/32  (2.4) GTAW 0 120-160 100% Helium or 100% Argon 40-55 CFH
 1/8  (3.2) GTAW 0 170-230 100% Helium or 100% Argon 40-55 CFH
Typical Welding Parameters
Diameter Process Volt  

Amps

GAS
in (mm)
 .035  (.9) GMAW 20-26 70-120 100% Argon or 75% Argon, 25% Helium 45-55 CFH
 .045  (1.14) GMAW 22-28 120-160 100% Argon or 75% Argon, 25% Helium 45-55 CFH
1/16 (1.6) GMAW 29-32 250-400 100% Argon or 75% Argon, 25% Helium 45-55 CFH
 3/32  (2.4) GMAW 32-34 170-230 100% Argon or 75% Argon, 25% Helium 45-55 CFH

 

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