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AWS A5.7 /ERCuAl-A1 Aluminum Bronze GMAW/GTAW Copper Alloy Welding Wire
ERCuAl-A1 Aluminum Bronze is an iron-free aluminum bronze filler metal used for MIG and TIG overlaying. It is not recommended to be used for joining. Because of its moderate strength it is predominantly used for weld overlay and metalizing in automotive and other manufacturing operations. It can also be used for build-up and repair of bearing and corrosion resistant surfaces.
Typical Applications: overlaying of wear resistant surfaces subject to corrosive environment, overlaying of tube sheets, refineries, and valve seats in pulp mill
| AWS Class: ERCuAl-A1 | Certification: AWS A5.7/A5.7M:2007 |
| Alloy: ERCuAl-A1 | ASME SFA A5.7 |
| Welding Position:
| Current:
AC-DCEP |
| Tensile Strength, kpsi: | 68 |
| Yield Strength, kpsi | 28 |
| Elongation in 2” (%): | 47 |
Typical Wire Chemistry as per AWS A5.7(single values are maximum)
| Cu including Ag | Zn | Mn | Si | Al | Pb | Other |
| Remainder | 0.20 | 0.50 | 0.10 | 6.0-8.5 | 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 |
