Hardfacing Electrodes
ES 660 / EN 14700: E Zfe 4
Description
ES 660 is a general purpose, rutile coated hard facing electrode especially designed to use with small transformers having a relatively low open circuit voltage. It is resistant to softening up to 500°C. It gives a high abrasion resistant martensitic type weld metal with a medium toughness. Weld metal can not be machined.
Typical Chemical Composition (%)
| Si | Mn | Mo | Cr | C |
|---|---|---|---|---|
| 0.40 | 0.50 | 0.60 | 6.00 | 0.40 |
Typical Mechanical Properties
| Yeild Strength | Tensile Strength | Elongation 5x D | Impact (ISO-V) |
|---|---|---|---|
Applications
It is used for hard facing of alloyed and unalloyed steels. Protective lining of worn surfaces of machines used in mines, bulldozer blades, excavator teeth, crushing jaws, conveyors, agricultural and forest machines that are exposed to wear can be hard faced with this electrode.
Sizes Available & Recomennded Currents
| Diam. (mm) | Length (mm) | Current (Amperes) | Arc Voltage | Wire Feed |
|---|---|---|---|---|
| 2.5 | 350 | 60 - 120 | ||
| 3.25 | 350 | 100 - 160 | ||
| 4.0 | 450 | 160 - 200 | ||
| 5.0 | 450 | 170 - 250 |
Welding Current
AC min. 40 V. / DC { + } ?
Welding Positions
 Flat |
* |  Fillet |
Hardness (HB)
57 - 62 HRC