ALFA MAKE ER4043 Aluminium TIG Welding Filler Rod
ALFA MAKE 4043 / ER4043 is a premium-quality aluminium filler rod containing approximately 5% Silicon. Its lower weld deposit strength and excellent crack resistance make it suitable for Gas Welding and Gas Tungsten Arc Welding (GTAW/TIG) of aluminium cast alloys.
It is suitable for welding mainly 4XXX and 6XXX series cast aluminium alloys and selected 1XXX, 5XXX and 6XXX series wrought aluminium alloys, except applications where an accurate colour match is required after anodizing.
Key Features
- ALFA 4043 / ER4043
- Premium-quality aluminium alloy filler rod
- Approximately 5% Silicon alloy
- Excellent crack resistance
- Suitable for Gas Welding
- Suitable for GTAW / TIG welding
- Lower weld deposit strength
- Suitable for cast aluminium alloys
- Suitable for selected wrought aluminium alloys
- AC-HF welding recommended
- Welding-grade Argon shielding gas
Product Specifications
| Specification | Details |
|---|---|
| Brand | ALFA MAKE |
| Product Name | ALFA 4043 |
| Identification | ALFA 4043 / ER4043 |
| Product Type | Aluminium TIG Welding Filler Rod |
| Classification | AWS/SFA 5.10: ER4043 |
| IS Classification | IS: 5897: SNG 21 |
| Alloy Type | Aluminium-Silicon Alloy |
| Silicon (Si) | 4.5–6.0% |
| Aluminium (Al) | Balance |
| Iron (Fe) | 0.80% Max |
| Copper (Cu) | 0.10% Max |
| Manganese (Mn) | 0.50% Max |
| Magnesium (Mg) | 0.05% Max |
| Zinc (Zn) | 0.10% Max |
| Titanium (Ti) | 0.20% Max |
| Welding Process | Gas Welding / GTAW / TIG |
| Current Condition | AC (+) |
| Recommended Electrode | Zirconiated Tungsten |
| Shielding Gas | Welding Grade Argon |
| Standard Length | 1000 mm |
| Available Sizes | 1.6 mm, 2.0 mm, 2.40 mm, 2.50 mm, 3.15 mm, 3.20 mm, 4.0 mm |
| Packing per Packet | 2 kg |
| Packing per Box | 8 kg (2 × 4) |
Chemical Composition
| Element | Range |
|---|---|
| Silicon (Si) | 4.5–6.0% |
| Iron (Fe) | 0.80% Max |
| Copper (Cu) | 0.10% Max |
| Manganese (Mn) | 0.50% Max |
| Magnesium (Mg) | 0.05% Max |
| Zinc (Zn) | 0.10% Max |
| Titanium (Ti) | 0.20% Max |
| Aluminium (Al) | Balance |
Typical Applications
ALFA MAKE 4043 is suitable for:
- Gas welding of aluminium alloys
- GTAW / TIG welding of aluminium alloys
- Cast 4XX series aluminium alloys
- Cast 6XX series aluminium alloys
- Selected wrought 1XXX series aluminium alloys
- Selected wrought 5XXX series aluminium alloys
- Selected wrought 6XXX series aluminium alloys
It is not recommended where an accurate colour match is required after anodizing.
TIG Welding Procedure
For TIG welding, the supplied datasheet recommends thoroughly cleaning the joint area. For butt welding of thick plates, a 65°–75° included-angle bevel is specified. A zirconiated tungsten electrode with a tapered blunt point, AC-HF, and welding-grade Argon are recommended. High sections should be preheated before welding.
Packing Details
| Size | Length | Packing / Packet | Packing / Box |
|---|---|---|---|
| 1.6 mm | 1000 mm | 2 kg | 8 kg |
| 2.0 mm | 1000 mm | 2 kg | 8 kg |
| 2.40 / 2.50 mm | 1000 mm | 2 kg | 8 kg |
| 3.15 / 3.20 mm | 1000 mm | 2 kg | 8 kg |
| 4.0 mm | 1000 mm | 2 kg | 8 kg |
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