Hardfacing Electrodes
ES 25 Ni A 5.11: ENiCrMo-5 / EN 14700: E Ni 2
Description
ES 250 Rutile basic covered, ~ 180% efficiency electrode. The weld metal to thermal shock, corrosion and abrasion resistant and extremely hard red is high. Improperly calm and spatter-free. Before using the electrodes must be dried for 2 hours to 200-250 ° C`T.
Typical Chemical Composition (%)
| Si | Mn | Mo | Cr | C | Ni | W | Fe |
|---|---|---|---|---|---|---|---|
| 0.30 | 0.90 | 15.0 | 16.5 | 0.04 | Balance | 5.0 | 6.0 |
Typical Mechanical Properties
| Yeild Strength | Tensile Strength | Elongation 5x D | Impact (ISO-V) |
|---|---|---|---|
Applications
It is outstand suitable for buildings on hot work tools ( dies and jaws in forging machines, hot punches, forming dies, hot shear blades ) requiring high red hardness and resistance to thermal shock. Particularly suitable for reconditioning to worn hot mandrels in pipe fabrication. Deposit does not require preheating but depends upon base metal.
Sizes Available & Recomennded Currents
| Diam. (mm) | Length (mm) | Current (Amperes) | Arc Voltage | Wire Feed |
|---|---|---|---|---|
| 2.50 | 350 | 60 - 90 | ||
| 3.2 | 350 | 130 - 170 | ||
| 4.0 | 350 | 160 - 200 | ||
| 5.0 | 350 | 170 - 220 |
Welding Current
Welding Positions
 Flat |
 Horizontal |
* |  Fillet |
Hardness (HB)
250 – 350 (Annealed 800ºC/4H h) - < 550 (Work harden ability)