ERCuAl-A1
Class: ERCuAl-A1
AWS: A5.7
Conforms to Certification: AWS – 5.7 | ASME SFA A5.7
Aluminum Bronze-A1 Mig Welding Process (GMAW)
| AWS Chemical Composition Requirements | |
| Cu = Remainder | Zn = 0.20 max |
| Mn = 0.50 max | Si = 0.10 max |
| Al = 6.0 – 8.5 | 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-A1 is an iron free aluminum bronze. Recommended for uses as an overlay material for wear resistant surfaces; it is not recommended for joining applications since the deposit does have a tendency to be hot short.
Deposited Chemical Composition % (Typical)
Dependent on weld process
| (Nominal) All Weld Metal Properties Requirements | |
| Tensile Strength | 68,000 psi |
| Yield Strength | 28,000 psi |
| Elongation | 47% |
| Reduction of Area | 53% |
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.