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AWS A5.10: ER4047
DIN 1372: SG-Al Si 12
EN ISO 18273: S Al 4047 (Al Si 12)
Special welding wire for aluminium alloys containing more than 7% silicon.
Widely used for repairing casting defects and welding unknown aluminium alloys.
Properties similar to eutectic brazing (570–585°C), excellent fluidity and adhesion.
Application: automotive, tractors, agricultural machinery, engine blocks, cylinder heads, tanks, containers, boilers etc.
G-AlSi9Mg
G-AlSi10Mg
G-AlSi12
3.2373
3.2383
3.2581
| Si | Fe | Cu | Mn | Mg | Zn | Al |
| 12 | 0.2 | 0.007 | 0.01 | 0.02 | 0.03 | balance |
| Rp 0.2 (MPa) | Rm (MPa) | A5 (%) |
| 80 | 140 | 20 |
| Process | Wire Ø mm | Spool weight kg | Current (A) | Voltage (V) | Gas |
| MIG = + | 1.0 | 100–150 | 18–22 | Ar/He 18–20 l/min | |
| 1.2 | 130–200 | 18–25 | |||
| 1.6 | 170–280 | 20–27 |
