Hardfacing Electrodes
ES 300 / EN 14700: E Fe1
Description
ES 300 is a heavily coated basic electrode particularly used for wear conditions where impact stresses are considered. It gives a weld metal that is resistant to deformations of high rolling forces including metal-to-metal friction. Weld metal is air hardenable and can be machined with carbide cutting tools. Hardness varies with respect to the number of passes and cooling rate. It has about 115 % metal recovery.
Typical Chemical Composition (%)
| Si | Mn | Cr | C |
|---|---|---|---|
| 0,20 | 0,60 | 3,40 | 0,07 |
Typical Mechanical Properties
| Yeild Strength | Tensile Strength | Elongation 5x D | Impact (ISO-V) |
|---|---|---|---|
Applications
It is used for hard facing of rollers, gears, rail crossings, switch points, brake shoes and crane wheels. Joining of heat treatable steels having a tensile strength of 80 - 90 kg / mm˛ is another application areas.
Sizes Available & Recomennded Currents
| Diam. (mm) | Length (mm) | Current (Amperes) | Arc Voltage | Wire Feed |
|---|---|---|---|---|
| 3.25 | 350 | 110 - 140 | ||
| 4.0 | 450 | 150 - 190 | ||
| 5.0 | 450 | 190 - 260 |
Welding Current
DC (+) / AC min. 70V ?
Welding Positions
 Flat |
* |  Fillet |
Hardness (HB)
310 - 350 HB