ELHARD 250
Standards
| TS EN 14700 | E Fe1 |
|---|---|
| EN 14700 | E Fe1 |
| DIN 8555 | E 1-UM-250 |
Chemical Composition of Weld Metal % (Typical)
| C | Si | Mn | Cr |
|---|---|---|---|
| 0,15 | 0,8 | 1,0 | 1,0 |
Typical Base Material Grades
- For tough builds up on rails, gearwheels, shafts, gear parts and couplings,
- For buffer layers on carbon steels and low-alloyed steels with concurrent extreme compressive stress on anti -wear surfaces.
- Preheat heavy parts and higher carbon steel qualities. Re-drying : 300°C / 2h
Features and Applications
- Suitable for impact resistance.
- Suitability of alloy types for different kind of requirements; 1) Mechanical friction is acceptable and non accetable. Mechanical impact is excellent and good. 2) thermal high temperature and thermal termo shock and corrosive are not acceptable. 3) crack resistance and machining are excellent. 4) Ferritic alloyed and martensitic microstructured. 5) Hardness ranges are 150 to 450 HB
- Examples of applications; 1) System structures are solid to solid and boundry friction.
- a) Type of wear is frictional. i) Examples of components are Guiding way, sliding rail.
- b) Type of wear is impact wear. ii) Examples of components are valve rocker, cam.
- c) Type of wears are rolling and friction. iii) Examples of components are Bogie wheel and track rails.
Mechanical Properties
| Weld Metal Hardness (HB) |
|---|
| 225 - 275 |
Current Type
- AC
- DC(+)
Features and Applications Table
| System Structure | Type of Wear | Examples of Components |
|---|---|---|
| Solid Body - Solid Body | Solid - Body Friction | Boundry Friction | Mixed Friction | Frictional | Guiding way, sliding rail |
| Solid Body - Solid Body | Solid - Body Friction | Boundry Friction | Mixed Friction | Impact | Valve Rocker, Cam |
| Solid Body - Solid Body | Solid - Body Friction | Boundry Friction | Mixed Friction | Rolling, Friction | Bogie Whell, Track Rails |
Suitability of Alloy Types
| Mechanical Friction | Mechanical Impact | Thermal High Temperature | Thermal Shock | Corrosive | Crack Resistance | Machining | Alloy / Microstructure |
|---|---|---|---|---|---|---|---|
| 3 and 4 | 2 and 3 | 4 | 4 | 4 | 1 | 1 | Ferritic / Martensitic |
| 1 Excelient | 2 Good | 3 Acceptable | 4 Not Acceptable | a) artifical ageing 3h to 4 h at 480 °C b) work hardened | |||||||
Resistance Type and Level
Friction
Impact Resistance
High Temp.
Thermo Shock
Corrosive
Machining
Crack Resistance
Operating Data
| Product Code | Diametré x Length (mm) | Diameter x Length (inch) | Welding Current (A) | Weight g / 100 pcs |
|---|---|---|---|---|
| 3010101744 | Ø3,2 x 350 | Ø1/8 x 14 | 100 - 140 | 3670 |
| 3010101747 | Ø4,0 x 450 | Ø5/32 x 18 | 140 - 180 | 6820 |
| 3010101750 | Ø5,0 x 450 | Ø3/16 x 18 | 180 - 230 | 10570 |
