Copper Bridge E71T-1C Gas-Shielded Flux Cored Wire
DESCRIPTION
Copper Bridge E71T-1C is a CO₂ gas-shielded flux cored wire with a titanium-type slag system for all-position welding. It offers stable arc performance, smooth weld formation, and strong low-temperature impact performance.
▶ AVAILABLE DIAMETERS
1.0, 1.2, 1.4, 1.6 mm (0.040, 0.045, 0.055, 1/16 in)
▶ PACKAGING
11 lb spool, 33 lb spool
▶ APPLICATIONS
Carbon & low-alloy steel. Used in ships, bridges, and machinery manufacturing.
▶ WELDING PROCESS
FCAW / Gas-Shielded (CO₂)
▶ POLARITY
AC or DC+
▶ WELDING POSITIONS
All position
CHEMICAL COMPOSITION OF DEPOSITED METAL (WT.%)
| Element | C | Mn | Si | S | P | Ni | Cr | Mo | V | Nb | Cu |
| AWS | ≤0.12 | ≤1.75 | ≤0.90 | ≤0.030 | ≤0.030 | — | — | — | — | — | — |
| GB/T | ≤0.18 | ≤2.00 | ≤0.90 | ≤0.030 | ≤0.030 | — | — | — | — | — | — |
| Example value | 0.052 | 1.42 | 0.36 | 0.009 | 0.019 | 0.05 | 0.02 | 0.01 | 0.003 | 0.005 | 0.01 |
MECHANICAL PROPERTIES OF DEPOSITED METAL
| Property | Tensile/MPa | Yield/MPa | Elongation/% | Impact J/°C |
| AWS | 490–670 | ≥390 | ≥22 | ≥27 / -20 |
| GB/T | 490–670 | ≥390 | ≥18 | ≥47 / -20 |
| Example value | 565 | 480 | 26 | 115 |
RECOMMENDED WELDING PARAMETERS
| Diameter/mm | Φ1.0 | Φ1.2 | Φ1.4 | Φ1.6 |
| Current/A | 100–200 | 140–300 | 150–360 | 180–400 |
| Voltage/V | 20–32 | 20–32 | 20–34 | 20–38 |
| Gas flow/(L/min) | 20–25 | 20–25 | 20–25 | 20–25 |
NOTES
1. Use CO2 gas shielding with purity above 99.8%.
2. Keep wire stickout at 15–25 mm (5/8–1 in).
3. Remove rust, oil stains, and moisture from welded parts before welding.
4. After unpacking, take moisture-proof measures and use the wire promptly. 5. On-site, use wind protection if winds are strong.
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