Hardfacing
FERVEO HRF 400
covered electrode · stick electrodeCatalogue only
AWS class
E 1-UM-400
EN ISO class
E Fe 1
Hardness
400–430 HB
Classification
| AWS class | E 1-UM-400 |
|---|---|
| EN ISO class | E Fe 1 |
| DIN 8555 / EN 14700 | E1-UM-400 |
Purpose
- High-hardness (400-430 HB) surfacing electrode for buckets, guide rollers and excavator/bulldozer components in mining.
- Built for direct field repair of this equipment.
Why it works
A harder alloy than HRF 350, aimed at the highest-wear parts of earth-moving machinery — buckets and rollers that work in direct contact with rock and abrasive ore.
Fields of application
- Repairing and surfacing excavator buckets.
- Guide rollers and bulldozer components in mining.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.14 |
| Cr | 2 |
| Mn | 1.5 |
| Si | 0.6 |
Mechanical properties
| Hardness | 400–430 HB |
|---|
Process
| Polarity | DC+ |
|---|---|
| Re-drying | 300°C / 2h |
Sizes and part numbers
| Ø | Length | Current | Request |
|---|---|---|---|
| 4 mm | 450 mm | 140–180 A | |
| 5 mm | 450 mm | 180–230 A |
Cross-reference
| Replaces EH 340 (Magmaweld) | Direct replacement |
| Replaces Stoody Rail End 932 (Stoody) | Direct replacement |
Equivalence refers to the classification (AWS / EN ISO), not to product identity. In applications with a qualified procedure (WPS), validate the substitution before use.
Advantages
- High hardness (400-430 HB) for the most demanding mining wear.
- Purpose-built for field repair of this kind of equipment.