Hardfacing
FERVEO HRF 650
covered electrode · stick electrodeCatalogue only
AWS class
E 6-UM-60
EN ISO class
E Fe 6
Hardness
56–59 HRC
Classification
| AWS class | E 6-UM-60 |
|---|---|
| EN ISO class | E Fe 6 |
| DIN 8555 / EN 14700 | E6-UM-60 |
Purpose
- Cr-Mo-Nb hardfacing electrode (EN ISO E Fe6, DIN 8555 E6-UM-60), 56–59 HRC — for earth-moving equipment and crusher wear parts.
Why it works
Niobium added to the Cr-Mo base gives an abrasion-resistant deposit intended for direct application on the first passes — from the third pass onward, the manufacturer requires a buffer layer suited to the base material grade.
Fields of application
- Earth-moving equipment and crusher wear parts.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.55 |
| Cr | 6.8 |
| Mn | 1.35 |
| Mo | 1.2 |
| Nb | 0.6 |
| Si | 0.75 |
Mechanical properties
| Hardness | 56–59 HRC |
|---|
Process
| Polarity | DC+ |
|---|---|
| Re-drying | 300°C / 2h |
Sizes and part numbers
| Ø | Length | Current | Request |
|---|---|---|---|
| 3.2 mm | 350 mm | 100–140 A | |
| 4 mm | 450 mm | 140–180 A | |
| 5 mm | 450 mm | 180–230 A |
Cross-reference
| Replaces EH 360R (Magmaweld) | Direct replacement |
| Replaces EH 360B (Magmaweld) | Direct replacement |
| Replaces AS SD-60 (Askaynak) | Direct replacement |
| Replaces UTP DUR 600 (UTP) | 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
- Can be applied directly onto the base metal for the first two passes, without a prior buffer layer.
- Good abrasion resistance for general earth-moving use.
Limitations
- From the third pass onward, requires a buffer layer matched to the base material grade (e.g. FERVEO HRF 63, HRF 250, INX 307, or HRF 14 Mn) — don't keep applying FERVEO HRF 650 directly in thick layers.
- On hardenable steels, requires preheating to 100–300°C.