TIG Rod ER4043 Aluminium + 5% Silicon, 1.6mm Diameter, 1M Length
Premium ER4043 aluminium TIG filler rod for crack-resistant welding of 6000-1000 series alloys and automotive applications.
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TIG Rod ER4043 Aluminium + 5% Silicon, 1.6mm Diameter
Brief Overview
The ER4043 aluminium TIG filler rod is a proven solution for welding aluminium alloys across automotive, maritime, chemical, and manufacturing industries. This rod combines excellent thermal crack resistance with superior weld quality and finish. Whether you're stocking for high-volume automotive repair shops or specialized fabricators, the ER4043 delivers consistent results on 6000-1000 and 6000-3000 series alloys. For shops working with stainless steel applications, consider complementary stainless TIG rods to maximize your welding consumables portfolio.
Key Features
- 1.6mm diameter – Ideal for precise, controlled welding on thin to medium-gauge aluminium sections
- 1-meter length – Convenient pre-cut rod format, 5kg bundle weight for efficient inventory management
- 4.5–6.0% silicon content – Ensures smooth arc control, reduced hot-cracking susceptibility, and bright, shiny weld appearance
- AWS A5.10 ER4043 / GB/T858-2008 SAI 4043 certified – Meets international welding standards for quality assurance
- Multi-alloy compatibility – Works on cast and wrought aluminium alloys, 6000-1000 and 6000-3000 series
- Thermal crack resistance – High silicon matrix minimizes heat-affected zone cracking in critical assemblies
Technical Specifications
| Parameter | Value |
|---|---|
| Diameter | 1.6 mm |
| Length | 1 M |
| Bundle Weight | 5 kg |
| Silicon Content | 4.5–6.0% |
| Iron Content | ≤0.80% |
| Magnesium Content | ≤0.05% |
| Zinc Content | ≤0.10% |
| Titanium Content | ≤0.20% |
| Carbon Content | ≤0.30% |
| Manganese Content | ≤0.05% |
| Base Material | Aluminium (remainder) |
| AWS Classification | A5.10 ER4043 |
| ISO / GB Standard | GB/T858-2008 SAI 4043 |
| Applicable Alloy Series | 6000-1000, 6000-3000, casting and wrought alloys |
Business Advantages for Resellers
- High-demand consumable – Automotive repair shops and fabrication facilities require steady ER4043 stock; repeat orders are predictable and reliable
- Broad industry application – Single SKU serves automotive, marine, chemical processing, tooling, and metallurgical sectors; reduces inventory complexity
- Consistent margin potential – Standard consumable with strong demand elasticity; ideal for bulk purchasing agreements
- Quality assurance – AWS and GB/T certified ensures customer confidence and reduces warranty claims related to weld defects
- Complementary sell-through – Pair with 316L stainless TIG rods or ER308LSi variants to broaden customer spending per order
Application Summary
This ER4043 rod excels in environments where thermal crack resistance and aesthetic weld finish matter:
- Automotive: Welding aluminium body panels, fuel tanks, and structural brackets on 6000-series alloys
- Marine & Chemical: Hull repairs, tank fabrication, and corrosion-resistant assemblies
- Tooling & Molds: Die-cast mold repair and precision component fabrication
- General Fabrication: Any application requiring bright, crack-free welds on non-critical aluminium structures
The 1.6mm diameter is optimized for operators working with TIG equipment in the 100–150A range, delivering smooth arc action and minimal spatter.
Ready to stock a reliable, high-turnover welding consumable? The ER4043 delivers predictable demand, minimal returns, and strong resale value. Order in bulk to lock in favorable terms and position your shop as a trusted source for quality aluminium welding solutions.