$220.03 USD
ER4043 (AlSi5) aluminium TIG rod
Union AlSi 5 (AWS ER4043) by voestalpine Böhler Welding is a 5% silicon aluminium TIG rod for aluminium alloys with up to 2% alloying elements and alloys with up to 7% Si. Its very fluid weld pool makes welding easier. This item is 2.40 mm in diameter.
Key advantages
- AlSi5: the most versatile for aluminium.
- Very fluid weld pool.
- For aluminium-silicon castings.
- Approvals: DB and CE.
Applications
- EN AW-6060, 6005A, 6082 and 6061 alloys.
- EN AC-45000 and similar aluminium castings.
- General aluminium repair (not for decorative anodising).
Technical specifications
| Classification | AWS A5.10: ER4043 · EN ISO 18273: S Al 4043A |
| Diameter | 2.40 mm |
| Packaging | 5 kg box (1000 mm rods) |
| Approvals | DB · CE |
| Process | TIG (GTAW) · AC |
| Shielding gas | I1 (argon) or I3 (argon-helium) |
| Tensile strength | 130 MPa (yield 70 MPa) |
| Elongation | 16% |
📄 Download technical data sheet (PDF)
Technician's tip: thoroughly clean and degrease the bevels before welding and remove the oxide layer with a stainless steel brush. Weld on AC with pure argon or argon-helium mix.
Why buy from Soldaduras?
With over 50 years of experience, we are specialized distributors of welding, abrasive and polishing supplies. Every purchase comes with real technical support.
✔ Nationwide shipping
✔ Local delivery in the AMBA area
✔ Pickup at 338 Gral. Enrique Mosconi Ave., Lomas del Mirador
✔ Open Monday to Friday, 8 AM to 4 PM
Not sure about the right diameter or parameters for your job? Ask us before you buy.
