ERCuAl-A2
Class: ERCuAl-A2
AWS: A5.7
Conforms to Certification: AWS – 5.7 | ASME SFA A5.7
Aluminum Bronze-A2 Mig Welding Process (GMAW)
| 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 |
|
| Diameter X Spool Sizes | Diameter X Coil Sizes |
| .035 x 30# | 1/16 x 60# |
| .045 x 30# | 3/32 x 60# |
| 1/16 x 30# | 1/8 x 60# |
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 |
| MIG | .035 inches | 20-26 | 100-200 | 100% Argon or 75% Argon, 25% Helium | 45-55 CFH |
| GMAW (DCEP) | .045 inches | 22-28 | 100-200 | 100% Argon or 75% Argon, 25% Helium | 45-55 CFH |
| 1/16 inches | 29-32 | 250-400 | 100% Argon or 75% Argon, 25% Helium | 45-55 CFH | |
| 3/32 inches | 32-34 | 350-500 | 100% Argon or 75% Argon, 25% Helium | 45-55 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.