1kg 2.4mm ER70S-4 S4 Mild Steel TIG Welding Wire
$29.99
Product Introduction
Premium ER70S-4 mild steel TIG filler welding wire, ideal for low-medium surface contaminants. Features higher manganese/silicon vs S2, superior cleaning ability, fluid weld puddle & flatter bead. High purity ensures crack-free, exceptional welds with industrial quality. Includes batch COC.
Product Specifications
| Grade | ER70S-4 |
| Weight | 1kg |
| Diameter | 2.4mm |
| Length | 1000mm |
| Quantity | Approx. 30 sticks |
1kg – 2.4mm ER70S-4 Mild Steel TIG Filler Welding Wire: Premium Quality for Flawless Welds
Product Description
Engineered for professional welders, our ER70S-4 TIG filler wire delivers exceptional performance in low to medium contaminated environments. With higher manganese and silicon content than S2 grade, it offers superior cleaning action, a fluid weld puddle, and a flatter bead profile¡ªideal for achieving crack-free, high-integrity welds. Each 1kg pack contains approximately 30 industrial-grade rods, individually marked for traceability, ensuring consistent quality for critical applications.
Core Selling Points
| 1. Grade | ER70S-4 |
| 2. Weight | 1kg Pack |
| 3. Diameter | 2.4mm |
| 4. Length | 1000mm Rods |
| 5. Quantity | Approx. 30 Sticks |
| 6. Purity | High Purity for Defect-Free Welds |
| 7. Cleaning Action | Superior Surface Contaminant Removal |
| 8. Weld Pool | Fluid and Controllable |
| 9. Traceability | Batch Number Certificate Included |
| 10. Equivalents | Cigweld #321412, UNIMIG TG4ER70S-4-2.4 |
Applications
Perfect for mild steel welding in industrial, automotive, and fabrication projects. Ideal for surfaces with light rust or mill scale, where reliable penetration and clean bead formation are critical. Suitable for TIG welding processes requiring consistent mechanical properties and minimal post-weld cleanup.
Core Performance
Our ER70S-4 wire ensures exceptional flow characteristics, reducing fusion defects and porosity. The optimized alloy composition promotes strong, ductile welds with excellent impact resistance, meeting rigorous industrial standards for structural integrity.
Quality Assurance
Each batch is manufactured under strict quality control, with a certificate of conformance provided. Laser-engraved grade markings guarantee authenticity, while high-purity raw materials eliminate impurities that cause weld failures.
Differentiation
Unlike inferior wires, our ER70S-4 offers enhanced cleaning power and puddle control, reducing rework. The 1000mm length minimizes rod changes, boosting productivity¡ªbacked by a trusted Chinese manufacturing legacy in welding technology.
FAQ
Q: What contaminants can this wire handle?
A: Effective on light rust, mill scale, and minor surface oxides.
Q: Is this suitable for beginners?
A: Yes, its fluid puddle and stable arc make it user-friendly for all skill levels.
Q: Can it be used with DC TIG welders?
A: Yes, compatible with standard DC TIG equipment.
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