TOKO E71T-11 Self-Shielded Flux-Cored Welding Wire
Premium self-shielded electrode delivering exceptional weldability and mechanical properties without gas. Perfect for outdoor fabrication, structural erection, and on-site repairs where wind or logistics prevent gas-shielded welding.
Key Advantages
- AWS A5.20 / A5.36 compliant — full traceability and certified mechanicals.
- No external shielding gas required — ideal for outdoor, windy, or remote sites.
- Excellent wind resistance — stable arc even in gusts up to 35 mph (56 km/h).
- All-position capability — flat, horizontal, vertical-up, and overhead.
- High deposition rates — faster than stick electrodes, boosts field productivity.
- Deep penetration — welds through light rust and mill scale.
- Available diameters: 0.9mm (0.035"), 1.2mm (0.047"), 1.6mm (0.063").
Performance Highlights for Harsh Environments
- Arc Stability: Smooth, consistent arc with self-adjusting slag system.
- Weld Appearance: Uniform bead, easy slag removal (often self-peeling).
- Slag Release: Minimal cleanup, reduces downtime between passes.
- Toughness: Good impact properties at 0°C and -20°C for structural demands.
- Versatility: Single or multi-pass on thin to thick plates.
E71T-11 vs. Gas-Shielded Flux-Cored Wires
Choose the right tool for your job: ultimate portability vs. maximum cosmetic appearance.
🔹 E71T-11 (Self-Shielded)
- Shielding: Self-generated (no gas cylinder)
- Wind tolerance: Excellent (up to 35 mph)
- Best for: Outdoor construction, bridges, field repair
- Deposition: High, similar to gas-shielded
- Slag system: Fast-freezing, all-position
- Impact: ≥27J @ 0°C typical
🔸 E71T-1C / -9C (Gas-Shielded)
- Shielding: Requires CO₂ or mixed gas
- Wind tolerance: Sensitive (need wind screens)
- Best for: Shop fabrication, shipyard, indoor
- Deposition: Very high, spray transfer
- Slag system: Rutile, fine ripple
- Impact: Typically higher low-temp toughness
Primary Industrial Applications
Trusted by contractors and fabricators working in challenging outdoor conditions.
Bridge & Highway
Field erection, repair, and maintenance — no gas cylinders to haul onto structures.
Structural Steel
Beams, columns, and trusses in open-air construction sites.
Marine & Offshore
Ship repairs, docks, and offshore platforms where wind is constant.
Farm & Mining
Heavy equipment repair in remote fields or mines.
Additional Applications & Industries
- Pipeline girth welding (field joints)
- Storage tank erection
- Railcar repair and assembly
- Wind turbine tower field joints
- General maintenance & repair
- Lock gates and flood barriers
- Structural steel in windy regions
Technical Specifications (Typical)
Chemical Composition (%, single values are max)
| C | Mn | Si | S | P | Ni | Al |
|---|---|---|---|---|---|---|
| ≤0.15 | 0.80–1.60 | 0.30–0.80 | ≤0.015 | ≤0.020 | ≤0.50 | 0.5–1.5 |
Mechanical Properties (as-welded, no gas)
| Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | CVN @ 0°C (J) | CVN @ -20°C (J) |
|---|---|---|---|---|
| ≥415 | 480–655 | ≥22 | ≥27 | ≥20 |
Recommended Welding Parameters (1.2mm / 0.047")
| Position | Current (A) | Voltage (V) | Stick-out (mm) |
|---|---|---|---|
| Flat/Horizontal | 170–250 | 22–27 | 20–30 |
| Vertical Up | 140–190 | 21–24 | 15–25 |
| Overhead | 130–180 | 21–23 | 15–20 |
Certifications & Technical Docs
Download batch-specific material certificates, SDS, and welding procedure guidelines for E71T-11.
All certifications are third-party verified and comply with AWS A5.20 / A5.36.
Frequently Asked Questions
E71T-11 requires no external shielding gas, making it ideal for outdoor or remote applications where wind would disrupt gas shielding, and eliminates gas cylinder logistics.
Yes, it is formulated for all-position welding including vertical-up and overhead, with a fast-freezing slag system.
E71T-11 provides deep penetration and is more forgiving on light rust and mill scale compared to solid wires, though best practice is to clean the base metal.
Store in a dry environment (humidity <60%). Reseal opened spools or keep in original packaging to prevent moisture pickup.