WELDING & CUTTING
India
 
Home > Products > Reclamation Consumables > Low Heat Hardfacing Alloys > OK 84.84
 
 
 
 
OK 84.84
 
64 HRC in a Single Layer for Extreme Abrasion
OK Selectrode 84.84 has been developed with unique alloying generating an equally unique microstructure rich in carbides. This system assumes a high packing density leaving virtually no matrix unsheltered.
 
Dilution of carbide in base metal is minimum as expected from the super convex bead shape. This. results in full hardness attainment in one layer itself and uniform hardness throughout the bead.
 
ALLOY BASE
Fe, Si, C, Cr, Ti, V
 
SPECIAL FEATURES
  • Full and uniform hardness in one layer only
  • Distribution of light micro carbides for resistance to abrasion by fine particles
APPLICATIONS
Side ribs of oil drill bit and tri-cone rock roller bit. New line concrete mixer paddles, dredger bucket tooth area. Other typical applications include hammers, scrapers, knives, shovel bucket and shovel teeth.
 
PROPERTIES
Hardness : 62-64.5 HRC
 
WELDING PROCEDURE
  • Use stringer beads. Weaving, if really unavoidable, should be as less as possible
  • If carpet coverage is required the overlap between successive beads should be minimum
  • Do not peen the bead while hot
  • The hardness is not affected by cooling rate, however, for best results employ normal air cooling
CURRENT RANGE : (AC 70, DC+/-)
 
Size (mm) Length (mm) Current Range (Amp)
3.25 350 100-150
4.00 350 110-200
 
 
More Info...