COROLOY CO
CLASSIFICATION
DIN EN 14700 DIN 8555
T Ni2 MF 23-250-CKNPTZ
GENERAL CHARACTERISTICS
COROLOY Co is a high alloyed Cr- Mo- Co- W- flux cored Nickel based wire. This alloy is suitable for steel that encounters aggressive corrosive media as well as those steels that operate at high temperatures. This hardfacing alloy is extraordinarily resistant on impact, pressure loads and high temperature environments, which results in hardening of the deposit up to a hardness of about 420 HB with little deformation. When build-up layers are required, CORODUR 200 K is recommended as a buffer layer. It is also recommended that the base material should be preheated to about 300°C – 400°C before hardfacing. For multi layer welding low interpass temperature and low energy input is recommended.
APPLICATION
Hot forging dies, forging plant parts, hot shear blades, hammer and hammer-saddles, repair of injection moulding castings, piercing mandrels, buffering alloy for forging hammer-saddles and hammers
TYPICAL ALL WELD METAL ANALYSIS ( % ):
| C | Cr | Ni | Mo | Co | V | W | Fe |
| 0,08 | 16,0 | Basis | 16,0 | 2,5 | 0,35 | 4,5 | <5,0 |
TYPICAL ALL WELD METAL MECHANICAL PROPERTIES
| Hardness weld deposit | Work hardening | Precipitation hardening 900°C/Air | Elongation |
| 260-280 HB | approx. 420 HB | approx. 430 HB | approx. 20% |
PARAMETER
| Diameter | Voltage | Amps |
| 1,6 | 22-26 | 180-240 |
| 2,0 | 25-27 | 220-260 |
| 2,4 | 25-27 | 260-300 |
| 2,8 | 26-28 | 280-340 |
FORMS OF DELIVERY
| Coil "BS 300" = 15 kg | Coil "BS 450" = 25 kg | Drums = 300 kg |
Corodur Fülldraht GmbH may change the characteristics of the wire without notice. Statements on composition and application are just for the applier’s information. Statements on mechanical properties always refer to the all-weld-metal according to valid standards. We recommend the applier to check our products for their special application autonomously.