TOKO E71T-1C & E71T-5C Flux-Cored Welding Wire
Precision-engineered CO₂ gas-shielded wires delivering exceptional weldability, mechanical properties, and productivity for mild steel fabrication. Trusted by shipyards and structural workshops worldwide.
Key Advantages
- AWS A5.20 / A5.36 compliant — full traceability and certified mechanicals.
- Optimized for 100% CO₂ (20–25 L/min) — excellent arc stability and penetration.
- All-position capability — flat, horizontal, vertical-up, and overhead.
- High deposition rates — boosts productivity in fabrication and repair.
- Low spatter & easy slag removal — reduces post-weld cleaning time.
- Available diameters: 0.8mm (0.032"), 1.0mm (0.039"), 1.2mm (0.047"), 1.6mm (0.063").
Performance Benefits for Critical Applications
- Arc Stability: Smooth, consistent arc with minimal fumes.
- Weld Appearance: Fine ripple, minimal undercut.
- Slag Release: Self-peeling or light chipping.
- Toughness: E71T-5C delivers excellent CVN at -20°C.
- Versatility: Single or multi-pass on thin to thick plates.
E71T-1C vs E71T-5C: Which One Fits Your Project?
Both exceed AWS requirements, but each has a distinct slag system and mechanical focus.
🔹 E71T-1C (Rutile)
- Slag: Rutile-based, fast freezing
- Transfer: Fine spray, very low spatter
- Operator appeal: Excellent for general fab
- Best for: Structural steel, shipbuilding, bridges
- Impact: 27J @ -20°C (standard)
🔸 E71T-5C (Basic)
- Slag: Basic (fluoride), good toughness
- Transfer: Spray/globular, deeper penetration
- Operator appeal: Demanding low-temp apps
- Best for: Offshore, cryogenic piping, high-impact
- Impact: ≥47J @ -20°C typical
Primary Industrial Applications
Proven in the harshest environments: from North Sea platforms to Asian shipyards.
Offshore & Marine
Jack-up rigs, FPSO topsides, module fabrication — E71T-5C preferred for low-temperature toughness.
Shipbuilding
Hull sections, decks, bulkheads; E71T-1C for fast, high-quality production welding.
Structural Steel
High-rises, stadiums, bridges — excellent X-ray quality and all-position ease.
Heavy Equipment
Excavators, cranes, mining trucks — high deposition for thick sections.
Additional Applications & Industries
- Pipeline field girth welds (with CO₂)
- Storage tank fabrication
- Railcar manufacturing
- Pressure vessel (non-code) assembly
- General repair & maintenance
- Wind turbine tower sections
- Lock gates and flood barriers
Technical Specifications (Typical)
Chemical Composition (%, single values are max)
| Element | E71T-1C | E71T-5C |
|---|---|---|
| Carbon (C) | 0.06–0.12 | 0.04–0.10 |
| Manganese (Mn) | 1.2–1.75 | 1.1–1.6 |
| Silicon (Si) | 0.3–0.8 | 0.2–0.6 |
| Phosphorus (P) | ≤0.020 | ≤0.020 |
| Sulfur (S) | ≤0.015 | ≤0.015 |
Mechanical Properties (as-welded, 100% CO₂)
| Property | E71T-1C | E71T-5C |
|---|---|---|
| Tensile Strength (MPa) | 550–650 | 530–640 |
| Yield Strength (MPa) | ≥430 | ≥410 |
| Elongation (%) | 24–28 | 25–30 |
| Charpy V-notch @ -20°C (J) | ≥35 | ≥50 |
Recommended Welding Parameters (1.2mm / 0.047")
| Position | Current (A) | Voltage (V) | Stick-out (mm) |
|---|---|---|---|
| Flat/Horizontal | 200–280 | 26–30 | 15–20 |
| Vertical Up | 150–200 | 22–25 | 12–18 |
| Overhead | 140–180 | 22–24 | 10–15 |
Certifications & Technical Docs
Download batch-specific material certificates, SDS, and welding procedure guidelines.
All certifications are third-party verified and comply with AWS A5.20 / A5.36.