COBALT 21
Chemical Composition of Weld Metal % (Typical)
| C | Mo | Co | Cr | Ni |
|---|---|---|---|---|
| 0.3 | 5.6 | Rest | 26.0 | 3.0 |
Mechanical Properties
| Hardness (as welded) (HRC) | Hardness (after working) (HRC) |
|---|---|
| 30 - 32 | 45 |
Features and Applications
- It is used for hardfacing of materials subject to impact, pressure, abrasion, corrosion and high temperature or combination of these
- Die molds, extruder screws, hot cutting and working boil steels, shafts, pumps, valves and seats
- Depending on the friction and impact, the hardness is increased in the weld metal.
- It has high resistance against cavitation.
- For this reason, it is used as a hard filling electrode against wear caused by fluids such as turbine blades and pump fans.
- Buffer filling can be done with electrodes such as ELOX 307 and ELOX 309 before application.
Current Type
- DC(+)
- AC
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) | Package Weight (Kg) | Welding Current (A) | Weight g / 100 pcs |
|---|---|---|---|---|---|
| 3030100070 | Ø3.2 x 350 | Ø1/8 x 14 | 5 | 90 - 120 | 3650 |
