Fluxes
FERVEO FLX BFF
fluxCatalogue only
AWS class
EM 12
EN ISO class
S2
Classification
| AWS class | EM 12 |
|---|---|
| EN ISO class | S2 |
Purpose
- Fluoride-basic submerged-arc (SAW) flux, the highest basicity in the FERVEO FLX range (3.0) — multi-pass welding of high-strength low-alloy steel with the highest toughness requirements.
Why it works
Basicity 3.0 is the ceiling of the FERVEO FLX range — this grade is built specifically for multi-pass joints where toughness matters above all else, and performs best paired with a higher-manganese wire to get the most out of that basicity.
Fields of application
- High-strength low-alloy steel, multi-pass joints with the highest toughness requirements.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.12 |
| Cu | ≤ 0.301 |
| Mn | 1 |
| Si | 0.1 |
Mechanical properties
Process
Base metals
Structural Steels: S355JRPipe Steels: L360Boiler Steels: P295GHP 355 GHShip-Construction Steels: ABDEFine-grained steels: P355NS355N
Advantages
- The basicity and toughness ceiling of the entire FERVEO FLX range.
Limitations
- Performs best with a higher-manganese wire — check wire compatibility before use; like other high-basicity fluxes, less forgiving bead finish than the aluminate-basic grades.