Weld Star ER4043 Aluminium TIG Wire - 1.6mm Dia. - 2.5kg Pack (AlSi5)
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- ER4043 aluminium TIG wire for welding aluminium alloys with up to 7% Si content
- 1.6mm diameter, 2.5kg pack with 1000mm wire length
- Silicon addition improves fluidity and wetting action during welding
- Not sensitive to weld cracking; produces bright, almost smut-free welds
- Preheat thicker sections to 150°C prior to welding
Which size do you need?
TIG Rod Finder
Aluminium wire for welding aluminium alloys with a maximum 2% alloying elements. Including aluminium alloys containing up to 7% Si.
The silicon addition results in improved fluidity (wetting action), making the alloy the preferred choice for welders.
ER 4043 is not sensitive to weld cracking and produces bright, almost smut-free welds. Not recommended for anodizing.
Thicker sections should be preheated to (150°C) prior to welding.
Typically used on many industrial manufacturing sectors, such as automotive, production of mobile equipment and shipbuilding etc.
Typical Base Materials
AlMgSi 0, AlSiMg (A), AlSi 1 MgMn, AlMg1SiCu, 3.3206, 3.3210, 3.2315, 3.3211, EN AW 6060, EN AW 6005A, EN AW 6082, EN AW 6061, EN AC 45000
Illustrative, not exhaustive list
Shielding Gases
EN ISO 14175 – TIG: I1, I3
Welding Positions
EN ISO 6947 – PA, PB, PC, PD, PE, PF, PG
| EN ISO 18273 – S Al 4043 (AlSi5) |
| AWS A5.10 – ER 4043 |
| Si% | Fe% | Cu% | Mn% | Mg% | Zn% | Ti% | Be% | Al% |
| 5.0198 | 0.1578 | 0.0124 | 0.0035 | 0.0051 | 0.0036 | 0.0177 | <0.0001 | Rem. |
| Tensile Strength | ≥120 MPa |
| Yield Strength | ≥40 MPa |
| Elongation | ≥8 % |
Mechanical properties are approximate and may vary based on the heat, shielding gas, welding parameters and other factors.
| Diameter | Length | Weight |
| 1.60 mm | 1000 mm | 2.5 Kg |
| 2.40 mm | 1000 mm | 2.5 Kg |
| 3.20 mm | 1000 mm | 2.5 Kg |
| Brand | Weld Star |
| Material Type | Aluminium (ER4xxx/5xxx) |
| TIG Rod Diameter | 1.6 mm |
| TIG Rod Weight | 2.5 kg |
| AWS Classification | ER 4043 |
Datasheet
Download PDFA carriage charge is applied to orders, for standard 1-2 day shipments to mainland destinations within the United Kingdom. Other destinations and premium services are available but subject to additional freight charges.
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