E4043
Alloy Type: A5.3, ALUMINUM AND ALUMINUM ALLOY Covered Arc Welding Electrodes
E4043 is a general purpose aluminum electrode for arc welding aluminum alloys. The arc is stable and operates at low temperatures with a minimum of spatter and fuming. The welds are strong, dense, and free of porosity on both production and maintenance applications. E4043 is a great choice when welding heat-treated aluminum parts. This welding rod may also be used in brazing applications.
Typical Applications: arc welding aluminums alloyed with copper, silicon and manganese, excellent for joining dissimilar grades of aluminum
| AWS Class: E4043 | Certification: AWS A5.3/A5.3M:1999 (R2007) |
| Alloy: E4043 | ASME SFA A5.3 |
| Welding Position: | Current:
DCEP |
| Tensile Strength, kpsi: | 14 min/ 32 max |
| Yield Strength, kpsi: | 20 |
| Elongation in 2” %: | 18 |
Typical Wire Chemistry as per AWS A5.3 (single values are maximum)
| Si | Fe | Cu | Mn | Mg | Zn | Ti | Be | AL | Other |
| 4.5-6.0 | 0.8 | 0.30 | 0.05 | 0.05 | 0.10 | 0.20 | 0.0008 | REM | 0.05 each-0.15 max total |
| Typical Welding Parameters | |||
| Diameter | Process | Amps (Flat) | |
| in | (mm) | ||
| 1/8” | (3.2) | SMAW | 75-130 |
| 3/32” | (2.4) | SMAW | 50-85 |
| 5/32 | (4.0) | SMAW | 100-165 |