HF 31S
Hardfacing electrode high Cr-carbides
Description & applications
Basic coated, slag free, hardfacing electrode with high recovery ( 190% ). Highly resistant to abrasion due to its high content of Cr and C. The service life of surfaced pieces is up to 50 times longer than for conventional electrodes of similar hardness. Austenitic matrix containing Cr carbides. Deposit 1 or 2 layers maximum. Resists to heavy mineral abrasion and moderate impact. Only machinable by grinding.
No slag and smooth beads. The formation of cracks in the weld deposit is normal for this type of composition. For all pieces subject to low or moderate impact where an important resistance to abrasion is searched.
General applications: For endless screws, mixer paddles, pump bodies for abrasive materials, excavator teeth, crashing of mineral materials, concrete pumps, screws for brick presses, wear plates.
Classification
| DIN 8555 |
|---|
| E10-UM-60-GRPZ |
Typical weld metal composition (%)
| C | Si | Mn | Cr | Fe |
|---|---|---|---|---|
| 5.0 | 1.0 | 0.5 | 35.0 | Rest |
All weld metal mechanical properties
| Hardness (in the 2nd layer) |
|---|
| 60-63 HRC |
Packaging data
| Dimension | 2.5x350 | 3.2x350 | 4.0x450 | 5.0x450 | 6.0x450 |
|---|---|---|---|---|---|
| Electr. / packet | 152 | 90 | 55 | 35 | 25 |
| Electr. / carton | 608 | 359 | 221 | 142 | 98 |
| Kg 1000 electr. | 32.9 | 55.7 | 108.4 | 169.4 | 243.9 |
| Packets / carton | 4 | 4 | 4 | 4 | 4 |
| Kg / packet | 5 | 5 | 6 | 6 | 6 |
| Kg / carton | 20 | 20 | 24 | 24 | 24 |
Amperes
| A | 70-110 | 100-130 | 140-180 | 180-230 | 200-270 |
|---|
