Aluminium MIG Welding Wire GYS AlSi5 1.0mm 2kg Spool ER4043
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- Solid wire for gas-shielded MIG welding of aluminium-silicon alloys
- Excellent weld-bead aesthetics with smooth free-flowing weld pool
- Suitable for cast aluminium alloy repairs and automotive applications
Which size do you need?
MIG Wire Finder

AlSi5 solid wire for MIG welding of aluminium-silicon alloys with up to 7% silicon concentration. Commonly used for cast aluminium alloy repairs, this filler metal delivers excellent weld-bead aesthetics and a smooth free-flowing weld pool.
Features
- Excellent weld-bead aesthetics
- Good thermal conductivity of the filler metal
- Very smooth free-flowing weld pool
- Suitable for cast aluminium alloy repairs and automotive applications
| Specification | Value |
|---|---|
| Classification AWS 5.10 | ER 4043 |
| Classification EN ISO 18273 | S Al 4043 (AlSi5) |
| Classification DIN 1732 | SG-AlSi5 |
| Wire diameter | 1.0 mm |
| Weight | 2 kg |
| Polarity | DC + |
| Aluminium content | Base |
| Silicon content | 5.00% |
| Yield strength (Re) | 100 MPa |
| Tensile strength (Rm) | 160 MPa |
| Elongation (A5) | 15% |
| Impact energy (KV 20°C) | 20 J |
| Recommended shielding gas | 100% Argon at 14-24 l/min |
| Brand | GYS |
| Material Type | Aluminium (ER4xxx/5xxx) |
| AWS Classification | ER4043 |
| Diameter | 1.0mm |
| Weight | 2kg |
| Spool Size | Mini (<2kg) |
Technical Data Sheet
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