HILCO ALUMINIL Si5 - Stick Electrodes - AWS: A5.3: E 4043
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Product description
Aluminil Si5 is our special coated aluminium electrode for welding, repairing and surfacing forged and cast aluminium-silicon alloys and joining dissimilar aluminium alloys with max. 7% Si content. The easy flowing characteristics make the electrode suitable for welding all aluminium castings (except AlMg castings). The electrode has a pure white coating specifically designed to reduce moisture pick-up. For thicker plate materials (≥15 mm) it is recommended to preheat at 150°C to 250°C before welding.
Best features
- Universal Compatibility: Aluminil Si5 welds, repairs, and joins various aluminum alloys, with ease. (Except AlMg castings)
- Moisture-Resistant: Its pure white coating is specifically designed to reduce moisture pick-up
- Versatile Use: Ideal for both cast and forged aluminum-silicon alloys, plus dissimilar aluminum alloy combinations with up to 7% Si content.
- Efficient Welding: Preheat for thicker materials (≥15 mm) for superior results and efficiency
Base materials to be welded:
- Aluminium-MgSi alloys
- Aluminium-Mg alloys up to 2,5% Mg
- Aluminium-MnCu alloys
- Aluminium-Si cast alloys
- Joining dissimilar aluminium alloys
Applications:
- General fabrication & construction (aluminium base metals)
- Shipbuilding & Offshore
- Repair & Maintenance
Base materials to be welded:
- Aluminium-MgSi alloys
- Aluminium-Mg alloys up to 2,5% Mg
- Aluminium-MnCu alloys
- Aluminium-Si cast alloys
- Joining dissimilar aluminium alloys
Applications:
- General fabrication & construction (aluminium base metals)
- Shipbuilding & Offshore
- Repair & Maintenance
Product specifications
| Product | Testmethode | ||
|---|---|---|---|
| Material number | 32.245 | ||
| AWS Classification | A5.3: E 4043 | ||
| EN ISO | 18273: E Al 4043 (AlSi5) | ||
| Current type | ![]() | ||
| Welding position | ![]() | ||
Product variants
| Article number | Size mm Size mm | Packaging Packaging | Weight kg Weight kg | Price/kg (£) Price/kg (£) | |
|---|---|---|---|---|---|
| 66677C | 2.5 x 350 | 1 aluminium can x 2 kg | 2 | 58.63 | |
| 66677 | 2.5 x 350 | 1 carton = 6 aluminium cans x 2 kg | 12 | 53.30 | |
| 66517C | 3.2 x 350 | 1 aluminium can x 2 kg | 2 | 55.53 | |
| 66517 | 3.2 x 350 | 1 carton = 6 aluminium cans x 2 kg | 12 | 50.48 | |
| 67383C | 4.0 x 350 | 1 aluminium can x 2 kg | 2 | 55.36 | |
| 67383 | 4.0 x 350 | 1 carton = 6 aluminium cans x 2 kg | 12 | 50.33 |
For more information, download the documents below

































