Mild Steel Flux Cored Wire - E71T-1
E71T-1 gas-shielded flux-cored wire is a high-deposition, all-position FCAW wire (AWS A5.20) with a rutile flux that gives a smooth, spray-like arc and easy slag removal. Run under CO² or a 75–80% Ar/CO² blend on DC+, it deposits 70,000 psi welds fast — a production favorite for structural and general steel fabrication. Common sizes .035", .045".
| AWS Classification | AWS A5.20 E71T-1 |
| Tensile Strength | 70,000 psi (480 MPa) minimum |
| Shielding Gas | 100% CO² or 75–80% Ar/CO² |
| Polarity | DC+ (DCEP) |
| Position | All positions, single- and multi-pass |
Frequently Asked Questions
Does E71T-1 need shielding gas?
Yes. E71T-1 is gas-shielded — run it under 100% CO² or a 75–80% argon / CO² blend on DC+ (DCEP). For gasless welding, use E71T-GS or E71T-11 instead.
Is E71T-1 good for all-position welding?
Yes — its fast-freezing rutile slag supports flat, horizontal, vertical, and overhead welds, with high deposition rates that beat solid MIG wire on thicker steel.
