Product description
TIG wire for gas-shielded welding of aluminium-silicon alloys up to 7% silicon.
Applicable to a range of grades: 6060 – 6061 – 6070 – 6071 – 6351
Product application instructions
Widely used for foundry repairs.
| ALLOY | DIN | W.-Nr. |
| 3004-3005 | AlMgSi0.5 | 3.3206 |
| 3303 | AlMGgSi1 | 3.3210 |
| 5005 | AlSi7Mg | 3.2371 |
| 6060-6061-6063-6070-6071 | AlSi5Mg | 3.2341 |
| 6351 |
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Welding aluminum-silicon alloys (type 43xx or 61xx).
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Repair or assembly of crankcases, engine blocks, radiators, automotive parts.
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Lightweight aluminium construction (furniture, structures, etc.).
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Can also be used for dissimilar assemblies (e.g. AlSi ↔ AlMg, as appropriate)
Wear resistance
Corrosion
Classification
| AWS A5.10 | ISO 18273 | AMS |
|---|---|---|
| ER4043 | S Al 4043 (AlSi5) | 4190 |
Chemical analysis (%)
| If | Mn | Cu | Ti | Fe | Zn | Al |
|---|---|---|---|---|---|---|
| 5.0 | 0.03 | 0.01 | 0.006 | 0.15 | 0.003 | Rest |
Mechanical characteristics
| Rm (MPa) | Rp0.2 (MPa) | A5 (%) |
|---|---|---|
| 120 | 80 | 20 |
Why choose ABRATIG AlSi5 filler metal?
Choosing ABRATIG AlSi5 (full name: ER4045 or sometimes ER4045/AlSi5) means opting for an aluminum filler wire with 5% silicon. It’s one of the most commonly used wires for TIG welding of aluminum. Here’s why:
- Very good weldability
Silicon greatly improves the fluidity of the molten bath, resulting in smooth, even penetration, ideal for long, homogeneous welds.
Low risk of hot cracking compared to other aluminum alloys.
- Good corrosion resistance
The addition of silicon improves corrosion resistance, particularly in damp or slightly aggressive environments.
- Clean visual appearance
The fluid molten bath produces highly aesthetic welds, with low porosity, if the shielding gas is correctly adjusted (usually pure argon).
Less risk of inclusions or visual defects.
