Hajji Welding Supplies, located in Tunis, Tunisia, has built a solid reputation as a reliable manufacturer and supplier of top-notch aluminum welding consumables for various industrial and fabrication needs. They offer the AWS Class ER4047 welding wire, which is designed to provide excellent fluidity, a smooth weld finish, and dependable joint integrity. Produced under rigorous quality control and in line with international standards, the ER4047 wire is perfect for both MIG and TIG welding processes. Hajji Welding Supplies caters to the automotive, marine, HVAC, and general engineering sectors, delivering consistent products backed by technical know-how and a reliable supply chain.
| Classification | AWS A5.10, ER 4047 |
| Form | MIG spools, TIG cut lengths, Reels and Coils |
| Type Of Welding | Inert Gas Welding |
| Standard TIG straight lengths are available | 36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request. |
| AWS ER 4047 MIG & TIG Filler Metal Application & uses |
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AWS Class ER4047 is an aluminum-silicon alloy welding wire that contains around 12% silicon. This high silicon content enhances fluidity, lowers the melting temperature, and improves crack resistance. The weld metal produced has moderate tensile strength, good ductility, and better wear resistance compared to lower-silicon fillers. ER4047 boasts stable arc characteristics, a smooth bead profile, and minimal shrinkage, making it an excellent choice for precision aluminum welding tasks.
| Si | Fe | Cu | Mn | Mg | Zn | Other |
Al |
| 11.0-13.0 | 0.08 | 0.30 | 0.15 | 1.10 | 0.20 | 0.15 | Remainder |
| Conductivity: | 41% IACS (-0) |
| Tensile Strength, kpsi: | 27 |
| Color: | Gray-Black |
| 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) |
At Hajji Welding Supplies, we take pride in being one of Tunis’s trusted suppliers of high-quality welding consumables. Our expertise lies in AWS Class ER 4047, engineered for precision, durability, and resistance to corrosion. With a strong commitment to quality and customer satisfaction, we provide welding solutions that support industries across construction, energy, shipbuilding, and manufacturing.
The AWS Class ER4047 welding wire is commonly used for MIG and TIG welding of aluminum alloys, especially in situations where enhanced fluidity and crack resistance are essential. Typical applications include automotive parts, aluminum castings, heat exchangers, radiators, HVAC components, and thin-section fabrications. It’s also a go-to choice for repair welding of aluminum castings due to its impressive wetting action and reduced risk of hot cracking. ER4047 is widely utilized in both manufacturing and maintenance operations that demand clean, high-quality welds.
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