WELDING & CUTTING
India
 
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COBALARC 4
 
Preformed Tungsten Carbides for High Pressure Abrasion
Cobalarc 4 is the ultimate in welding technology.
 
It has autogenous fume shielding over preformed carbides in a tubular form, which gives the user genuine low heat input and infinite shelf life by dint of its nonhygroscopic coating.
 
The electrode deposits fine tungsten carbide embedded in a hard and tough martensitic-austenitic matrix, which is suitable for extreme abrasion with low to moderate impact. It resists all forms of abrasion and wear. Deposition efficiency is very high when compared with coated electrode.
 
SPOT COLOUR: PINK
 
ALLOY BASE
Fe, W, C, Co
 
SPECIAL FEATURES
  • Exceptional resistance to severe abrasion and moderate to heavy impact at low to medium temperatures
  • Low spatter level
  • Unmatched deposition rates - high integrity deposits.
  • Compared to solid cored electrodes, the current requirement is low so the dilution by parent metal is contained to a minimum
  • Non-hygroscopic coating needs no storage precaution – infinite shelf life
APPLICATIONS
Rock drill bits, oil well drills, churn drills, sand gravel chutes, coal cutter bits and picks, bulldozer end plates, grader end bits, feed screens, scraper for sand and refractory materials, fan and pump impellers, pug mill augers and knives, choppers, post hole auger teeth, feed screws, mixer blades / paddles etc.
 
PROPERTIES
Hardness : 57-63 HRC
 
CURRENT RANGE : (AC 70, DC+/-)
 
Size (mm) Length (mm) Current Range (Amp)
5.0 400 90-120
6.3 400 120-140
 
 
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