HFT 3S
Hardfacing electrode for cutting tools
Description & applications
Rutile-basic coated electrode destined to surface all kinds of cutting tools such as lathe and plane tools. The sharpness obtained has an exceptional quality. C-Cr-Mo-W martensitic deposit, resistant up to 500°C.
This electrode is also used for surfacing of pieces subject to metal/metal wear. Withstands moderate shock. In the as welded condition only machinable by grinding. For machining by tools, carry out a soft annealing heat treatment at 850°C during 2 hours followed by slow cooling (approx. 3°C/min.) in an oven. In order to re-obtain the hardness, temper the deposit: 1200°C/ 1h, cooling in oil or with compressed air and annealing 2x500°C.
General applications: Hardfacing of machining tools, cutting tools made of steel, punches, drills, shear blades.
Classification
| DIN 8555 | AWS A5.13 |
|---|---|
| E4-UM-60-ST | ~ EFe5-B |
Typical weld metal composition (%)
| C | si | Mn | Cr | W | V | Mo |
|---|---|---|---|---|---|---|
| 0.8 | 0.5 | 0.5 | 5.0 | 1.5 | 1.5 | 10.0 |
All weld metal mechanical properties
| Hardness |
|---|
| 60-63 HRC |
Packaging data
| Dimension | 2.5x350 | 3.2x350 | 4.0x450 |
|---|---|---|---|
| Electr. / packet | 227 | 143 | 90 |
| Electr. / carton | 908 | 572 | 360 |
| Kg 1000 electr. | 22 | 35 | 72 |
| Packets / carton | 4 | 4 | 4 |
| Kg / packet | 5 | 5 | 6.5 |
| Kg / carton | 20 | 20 | 26 |
Amperes
| A | 80 | 110 | 150 |
|---|
