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
Typical Properties (as welded)
Typical Wire Chemistry as per AWS A5.10 (single values are maximum)
| 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 |
| Conductivity: | 42% IACS (-12) |
| Tensile Strength, kpsi: | 29 |
| Color: | Gray |
| Melting Point | 1170⁰F | Solidification | 1065⁰F | Density | 0.097 lbs/cu In. |
| 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) | |||||||||
Wenzhou Tianyu Electronic Co., Ltd. was established in 2000. We have been engaged in the manufacturing of welding electrodes, welding rods, and welding consumables for more than 20 years. Our main products include stainless steel welding electrodes, carbon steel welding electrodes, low alloy welding electrodes, surfacing welding electrodes, nickel & cobalt alloy welding electrodes, mild steel & low alloy welding wires, stainless steel welding wires, gas-shielded flux cored wires, aluminum welding wires, submerged arc welding. wires, nickel & cobalt alloy welding wires, brass welding wires, TIG & MIG welding wires, tungsten electrodes, carbon gouging electrodes, and other welding accessories & consumables.