Titanium
FERVEO TIT 7 MIG
solid wireCatalogue only
also as: TIG rod
AWS class
ERTi-7
EN ISO class
~Ti 2401 – TiPd0,2A
Tensile strength (Rm)
400 MPa
Classification
| AWS class | ERTi-7 |
|---|---|
| EN ISO class | ~Ti 2401 – TiPd0,2A |
Purpose
- Palladium-alloyed titanium wire/rod (AWS ERTi-7, ~Ti 2401) — welding titanium grade 7 and equivalents (grades 2, 16, 26) where crevice or under-deposit corrosion is a risk.
Why it works
Palladium (0.18%) improves resistance to crevice and under-deposit corrosion versus pure titanium, without adding mechanical strength — the reference alloy when the chemical risk is the problem, not structural load.
Fields of application
- Titanium grade 7 and equivalents (grades 2, 16, 26) in service with crevice or under-deposit corrosion risk.
Chemical composition
| Element | Typical, % |
|---|---|
| Pd | 0.18 |
| Ti | balance |
Mechanical properties
| Tensile strength (Rm) | 400 MPa |
|---|---|
| Elongation (A5) | 20 % |
Process
| Polarity | DC+ |
|---|---|
| Shielding gas | I1 |
Sizes and part numbers
| Ø | Current | Request |
|---|---|---|
| 1.5 mm | 35–60 A | |
| 2 mm | 70–80 A |
Advantages
- Better crevice and under-deposit corrosion resistance than pure titanium (FERVEO TIT 2) — the choice when that's the dominant risk.
- Compatible with titanium grades 2, 16, and 26, in addition to grade 7.
Limitations
- Titanium reacts with atmospheric oxygen, nitrogen, and hydrogen above ~500°C — beyond the torch shielding gas, it requires additional trailing and backing gas coverage on the root and the hot zone behind the weld pool; a bead that turns yellow, blue, or grey indicates contamination and toughness loss.
- Palladium improves chemical resistance, not mechanical strength (Rm ≈400 MPa, same as pure titanium) — for higher structural strength, see FERVEO TIT 5.