FCAW · Carbon steel
E71T-11
A general purpose gasless wire with a smooth spray-type arc, common on small machines and light fabrication where no impact toughness requirement applies.
What the designation means
- E
- Electrode carrying the welding current.
- 7
- 70,000 psi minimum tensile strength of the deposit.
- 1
- All position capability.
- T
- Tubular flux cored construction.
- -11
- The usability class: a general purpose self-shielded flux run on direct current electrode negative, with no impact toughness requirement and a thickness limit on multipass work.
At a glance
| Process | FCAW |
|---|---|
| Family | Carbon steel |
| Positions | All positions |
| Polarity | DCEN |
| Shielding | None required; the flux core produces its own shielding |
| Minimum tensile strength | 70 ksi |
Typical uses
- Light fabrication and repair on small portable machines
- Farm, fence, and trailer work outdoors
- General purpose welding on thin to medium carbon steel
How it runs
- Smooth spray-type arc that is easy to control at low current
- No shielding gas needed, so it works in wind
- Carries no notch toughness requirement, and multipass use is limited by thickness
- Slag is easy to remove but the process smokes noticeably
Storage and handling
Keep in sealed packaging with desiccant and rebag opened spools; a damp flux core causes porosity and a spitting arc.
Compare with
FCAWE71T-GSThe gasless wire that ships with small hobby machines, made for single-pass welds on thin steel where no code requirement or multipass buildup is involved.FCAWE71T-8A self-shielded flux cored wire that needs no gas bottle, combining all position capability with the low temperature impact toughness structural codes ask for.FCAWE71T-1The dominant gas shielded flux cored wire for structural work, giving high deposition with a fast freezing slag that holds the puddle for vertical up welding.