GMAW · Low-alloy steel
ER80S-D2
A molybdenum-bearing solid wire for higher strength steels, combining an 80 ksi deposit with better impact toughness than simply pushing a carbon steel wire hotter.
What the designation means
- ER
- Classified as both an electrode and a filler rod.
- 80
- 80,000 psi minimum tensile strength of the deposited weld metal.
- S
- Solid wire.
- -D2
- A chemistry class carrying molybdenum with elevated manganese, giving higher strength together with good notch toughness.
At a glance
| Process | GMAW |
|---|---|
| Family | Low-alloy steel |
| Positions | All positions with short circuit or pulsed transfer; spray is flat and horizontal only |
| Polarity | DCEP |
| Shielding | Argon with 2 to 25 percent carbon dioxide, or 100 percent carbon dioxide where the procedure allows |
| Minimum tensile strength | 80 ksi |
Typical uses
- High strength low alloy structural steel fabrication
- Pressure piping and vessel work requiring 80 ksi weld metal
- Earthmoving and heavy equipment components under fatigue loading
How it runs
- Stiffer arc and slightly less fluid puddle than a plain carbon steel wire
- Molybdenum and manganese give good notch toughness as welded
- Sensitive to excessive heat input, which lowers the impact values
- Cleaner bead face with less silicon glass than a high silicon carbon steel wire
Storage and handling
Keep alloy wire spooled, bagged, and dry; surface contamination has a bigger effect on the deposit chemistry than it does on plain carbon steel wire.
Compare with
GMAWER70S-6The most widely used carbon steel wire feed consumable, with enough silicon and manganese to weld through light rust and scale while wetting out into a flat bead.GTAWER80S-B2The chrome-moly torch rod used for root passes on lower alloy high temperature piping, matched to the same alloy class as the companion covered electrode.FCAWE81T1-Ni1An 80 ksi gas shielded flux cored wire with a nickel addition, used where the finished joint must hold impact toughness at low service temperature.