Abratig AlSi12
AlSi12% filler metal
Product description
TIG wire for gas-shielded welding of aluminum-silicon alloys up to 12% silicon. Its eutectic-like properties (570 – 585°C) give it maximum castability, making it ideal for use as a brazing alloy.
Repair of foundry parts.
Wear resistance
Corrosion
Classification
| AWS A5.10 | EN ISO 18273 (2004) | DIN 1732 | Werkstoff Nr. |
|---|---|---|---|
| ER 4047 | AlSi12 | SG-AlSi12 | 3.2585 |
Chemical analysis (%)
| If | Mn | Cu | Fe | Zn | Mg | Al |
|---|---|---|---|---|---|---|
| 12.0 | 0.01 | 0.007 | 0.2 | 0.03 | 0.02 | Rest |
Mechanical characteristics
| Rm (MPa) | Rp0.2 MPa | A5 (%) |
|---|---|---|
| 180 | 80 | 5 |
Why choose ABRATIG AlSi12 filler metal?
Choosing ABRATIG AlSi12 as a filler metal is an excellent choice for certain aluminum welds, especially when you’re looking to optimize crack resistance, bath fluidity, or compatibility with castings. Here’s why:
- Ideal for cast aluminum alloys
AlSi12 contains around 12% silicon, making it ideal for :
-cast aluminum alloys (4xx.x, 5xx.x series, etc.),
-welds between cast and extruded alloys,
-repair of cracked or worn castings.
–>Reduces the risk of heat cracking, which is common with castings.
- Excellent bath fluidity
High silicon content improves :
-wettability,
-penetration,
-cleanliness of the weld seam.
- Better corrosion resistance
Compared with a filler metal like ABRATIG AlSi5, ABRATIG AlSi12 offers slightly better corrosion resistance, particularly in marine or damp atmospheres, thanks to its high silicon content.
- Reducing internal tensions
ABRATIG AlSi12 helps reduce residual stresses after welding, which is crucial for :
-avoid deformations on thin parts,
-maintain dimensional tolerances.
