
ER4043 Aluminum Welding Wire | High Fluidity, Low Crack Sensitivity
Application
- Shipbuilding
- Energy Industry
- Pressure Vessel
- Heavy Machinery
Applications:
Used for welding aluminum alloys in industries such as shipbuilding, chemicals, molds, metallurgy, and locomotives.
Features:
THS-Al4043 is an aluminum-silicon alloy welding wire with low sensitivity to thermal cracking, making it suitable for welding heat-treatable base materials. This welding wire offers excellent welding process performance, producing aesthetically pleasing welds with stable arcs and minimal spatter.
Chemical Composition of Wire: (Wt. %)
|
Items |
Si |
Fe |
Cu |
Mn |
Mg |
|
Requirements |
4.5-6.0 |
≤0.8 |
≤0.30 |
≤0.05 |
≤0.05 |
|
Items |
Zn |
Ti |
Al |
Be |
other |
|
Requirements |
≤0.10 |
≤0.2 |
- |
≤0.0003 |
≤0.15 |
Precautions:
- The oxide, oil, moisture, and other impurities on the welding joint and wire must be removed before welding.
- For thick plate welding, preheat the material to 100°C - 200°C before welding.
| Element | C | Si | Mn | Cr | Ni |
|---|---|---|---|---|---|
| Value | ≤0.03 | ≤0.90 | 1.0-2.5 | 19.0-21.0 | 9.0-11.0 |
| Unit | % | % | % | % | % |