CORODUR® 721
CLASSIFICATION
DIN EN 14700 | DIN 8555
T Z Fe8 | (Sonderlegierung)
GENERAL CHARACTERISTICS
CORODUR 721 is a flux cored wire with alloyed Fe-B-Cr-weld metal with a martensitic carbide structure. It is suitable for highly abrasion resistant hardfacings that are exposed to minor impact and high wear at temperatures of up to 450°C. Due to its high hardness the hardfacing should not exceed 4 mm thickness.
APPLICATION
Feed screws, sand preparation plants, wear plates, ceramic industry, mixer parts
TYPICAL ALL WELD METAL ANALYSIS (%):
| C | Si | Mn | Cr | B | Fe |
| 1,5 | 1,0 | 2,0 | 16,0 | 3,5 | Rest |
TYPICAL ALL WELD METAL MECHANICAL PROPERTIES
Hardness first layer: 64 – 66 HRc
PARAMETER
| Diameter | Voltage | Amps |
| 1,2 | 20-24 | 150-200 |
| 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.