1. Overview
Hyundai E71T-1 is a flux-cored welding wire designed for Gas Metal Arc Welding (GMAW/FCAW) applications. It is widely used in structural steel fabrication, shipbuilding, and heavy industrial welding due to its high deposition rate, low spatter, and excellent slag removal 3913.
2. Key Features
Material:
Mild steel (MS) core with flux-filled tubular design for smooth arc performance 911.
Copper-coated for corrosion resistance and improved conductivity 9.
Performance:
AWS Classification: E71T-1 (conforms to AWS A5.20, AS/NZS ISO 17632-B) 311.
All-position welding (except vertical down) with stable arc and minimal spatter 11.
Low hydrogen (H8) for crack-resistant welds in high-strength applications 3.
Shielding Gas Compatibility:
Works with 100% CO₂ or 75% Ar + 25% CO₂ mix (dual shield) 311.
3. Technical Specifications
| Attribute | Details |
|---|---|
| Diameter | 1.20 mm |
| Spool Size | 15 kg box (parallel spool) 911 |
| Tensile Strength | ≥490 MPa (71 ksi) 3 |
| Elongation | ≥22% |
| Impact Strength | ≥27J at -18°C (Charpy V-notch) 3 |
| Operating Current | 120–300A (DC+) for 1.2mm wire 8 |
4. Applications
Structural Steel: Bridges, buildings, and heavy fabrication 311.
Shipbuilding: Hulls and offshore structures 3.
Mining & Construction: Earthmoving equipment, pressure vessels 11.
Automotive: Chassis and trailer manufacturing 13.
