Hardcarb 62
Iron base hardfacing alloy suitable for applications subject to severe impact, high pressure and cavitation combined with corrosion. Also used for dissimilar joints between manganese steel and construction steels and as a cushion layer before hardfacing in case of heavy reclaiming. The weld deposit is non-magnetic and exhibits excellent work hardening properties.
Weld deposit characteristics:
The weld deposit is austenitic, non-magnetic and has excellent work-hardening properties. The deposit is exceptionally resistant to wear caused due to heavy impact and high pressure. The high amount of Cr increases the resistance against corrosion, abrasion and cavitation. The deposit is excellent for unlimited build-up layers on “Hadfield” manganese steel and also on carbon steel prior to chromium carbide hardfacing deposit.
Recommended uses and applications
Surfacing and building up manganese steel components used in:
» railway applications (rails, switches, crossings, tongues)
» quarries and mines (crusher jaws, excavator and grab teeth, mill hammers, blowbars, gyratory crusher, dredge cutters) Other common uses:
» for dissimilar joints between Mn and construction steels
» as buffer layers prior to hardfacing
Additional info
Anti-wear suitability
| Metal-to-Metal friction Metal surfaces in relative motion forced into contact with or without lubricant. Degradation by the formation of micro-welds between the contacting surfaces. | - |
| High pressure abrasion Wear by relative movement under pressure of mineral particles of suitable hardness, shape and texture to remove material from the metal surface, leaving superficial deformation. | - |
| Cavitation Tearing out of grains from the metal surface by the formation and implosion of bubbles in a liquid in rapid motion. | Suitable |
| Mechanical fatigue Fatigue and formation of cracks in surface regions due to tribological stress cycles that result in the separation of material. | - |
| Thermal fatigue Cyclic exposure to high temperatures leading to permanent deformation by alternate expansion and contraction. Alteration of the structure and properties of the material. | - |
| Hot oxidation Creation of a poorly adhering oxide layer that reforms constantly. Degradation by loss of material thickness. | - |
Workability
| Work hardening Work hardening is the process of making a metal harder and stronger through plastic deformation. When a metal is plastically deformed, dislocations move and additional dislocations are generated. | |
| Edge retention Suitability for creating sharp edges and retaining them during operation. | |
| Machining Machinability is the ease with which a metal can be cut (machined) permitting the removal of the material with a satisfactory finish at low cost. | Suitable using carbide tools. |
