ER4043
Alloy Type: A5.10, ALUMINUM AND ALUMINUM ALLOY Electrodes and Rods
ER4043 is a general purpose type aluminum welding wire. It is one of the oldest and most widely used welding and brazing alloys. This aluminum alloy contains silicon additives, which result in improved fluidity (wetting action) of the weld pool and also produces a weld less sensitive to cracking. Its bright weld finish makes it a popular choice of welders. ER4043 can be used to weld various grades of aluminum.
Typical Applications: welding filler wire; spray and flame metalizing wire
| AWS Class: ER4043 | Certification: AWS A5.10/ A5.10M:1999 |
| Alloy: ER4043 | AWS/ASME SFA A5.10 |
| Welding Position:
F, V, OH, H |
Current:
DCEP-GMAW AC-GTAW |
Typical Properties (as welded)
| Conductivity: | 42% IACS (-12) |
| Tensile Strength, kpsi: | 29 |
| Color: | Gray |
| Melting Point | 1170⁰F | Solidification | 1065⁰F | Density | 0.097 lbs/cu In. |
Typical Wire Chemistry as per AWS A5.10 (single values are maximum)
| Si | Fe | Cu | Mn | Mg | Zn | Ti | Other | Al | ||||||
| 4.5-6.0 | 0.8 | 0.30 | 0.05 | 0.05 | 0.10 | 0.20 | 0.15 | Remainder | ||||||
| Typical Welding Parameters | ||||||||||||||
| Diameter | Process | Volt |
Amps |
GAS | ||||||||||
| in | (mm) | |||||||||||||
| .030 | (.8) | GMAW | 15-24 | 60-175 | Argon (cfh) | |||||||||
| .035 | (.9) | GMAW | 15-27 | 70-185 | Argon (cfh) | |||||||||
| 3/64” | (1.2 ) | GMAW | 20-29 | 125-260 | Argon (cfh) | |||||||||
| 1/16” | (1.6) | GMAW | 24-30 | 170-300 | Argon (cfh) | |||||||||
| 3/32” | (2.4) | GMAW | 26-31 | 275-400 | Argon (cfh) | |||||||||
| Diameter | Process | Volt |
Amps |
GAS | ||||||||||
| in | (mm) | |||||||||||||
| 1/16” | (1.6) | GTAW | 15 | 60-80 | Argon (cfh) | |||||||||
| 3/32” | (2.4) | GTAW | 15 | 125-160 | Argon (cfh) | |||||||||
| 1/8” | (3.2) | GTAW | 15 | 190-220 | Argon (cfh) | |||||||||
| 5/32” | (4.0 ) | GTAW | 15 | 200-300 | Argon (cfh) | |||||||||
| 3/16” | (4.8) | GTAW | 15-20 | 330-380 | Argon (cfh) | |||||||||