PURPOSE AND FIELD OF APPLICATION
12% silicon flux coated aluminum electrodes. Multi-purpose electrodes for welding cast, rolled and stamped aluminum and aluminum alloys. For welding aluminum and aluminum-based alloys such as: Al-Si, Al-Mg-Si, Al-Cu-Mg, Al-Zn-Mg. Typical application: loading docks and loading racks, window and door frames, gearbox housings, engine cylinder blocks, electric buses, electrical switch boxes and mounting supports.
| EN ISO 18273: Al 4047 (AlSi12) |
AWS/ASME A5.3: E4047 |
COATING TYPE - Special
APPLICATION CONDITIONS
Clean the welding area from dirt and oxide film. Preheat the heavy parts. When connecting a thick metal with a thin piece, preheat a heavier piece. Welding is performed by using the upper portion of the amperage range. Feed the electrode quickly and move fast maintaining a very close arc gap. Reduce the current while the welding is performed and as the base metal absorbs heat.
SPECIAL PROPERTIES
Pure white long shelf life extruded flux coating outlasts conventional products in moisture resistance.
REDRYING BEFORE WELDING
Redrying for 1 h at 120 °C is recommended.
CHEMICAL COMPOSITION OF DEPOSITED METAL, %
| Si |
Cu |
Fe |
Mg |
Mn |
Zn |
Be |
Al |
| 11.8 |
≤0.30 |
≤0.80 |
≤0.10 |
≤0.15 |
≤0.20 |
≤0.0003 |
Основа |
MECHANICAL PROPERTIES OF WELD METAL
| Tensile strength, MPa |
Elongation, % |
Yield strength, MPa |
| ≥ 200 |
≥ 5 |
≥100 |
WELDING CURRENT
| Diameter, mm |
Current, А |
| 2,5 |
40-70 |
| 3,25 |
60-90 |
| 4,0 |
80-120 |
Recommended Current: DC Reverse (+).
PACKAGING DATA
| Diameter, mm |
Length, m, |
Number of electrodes in package, pcs. |
Weight of packing, kg |
Packaging in a mini tube, pcs |
| 2.5 |
350 |
55; 222 |
0,5; 2 |
3 |
| 3.25 |
350 |
38; 150 |
0,5; 2 |
3 |
| 4.0 |
350 |
100 |
2 |
3 |
WELDING POSITIONS
ISO 6947
