Tool steels
FERVEO TLS 66
covered electrode · stick electrodeCatalogue only
AWS class
E 5-UM-400
EN ISO class
E Fe7
Hardness
54–57 HRC
Classification
| AWS class | E 5-UM-400 |
|---|---|
| EN ISO class | E Fe7 |
| DIN 8555 / EN 14700 | E 5-UM-400 |
Purpose
- Hardfacing electrode for hot-work tool steel, DIN class E 5-UM-400, 54-57 HRC hardness.
- Specifically formulated for repairing molds and hot-work tooling without deposit cracking.
Why it works
Designed for high deposition efficiency when surfacing hot-work tool steels — the manufacturer documents no cracking in the deposited metal after welding, a critical requirement when repairing molds where a single crack voids the whole part.
Fields of application
- Repair of molds and hot-work tooling.
- Surfacing hot-work tool steels that demand high deposition efficiency.
Mechanical properties
| Hardness | 54–57 HRC |
|---|
Process
| Polarity | DC+/AC |
|---|---|
| Re-drying | 300°C / 2h |
Sizes and part numbers
| Ø | Length | Current | Request |
|---|---|---|---|
| 4 mm | 450 mm | 150–190 A | |
| 5 mm | 450 mm | 180–240 A |
Advantages
- No cracking in the deposited metal after welding, per the manufacturer.
- High deposition efficiency — fewer passes for the same fill volume.