Extreme Wear & Impact resistant- RBSiC

CUMI manufactures CUMICARB_R©, Reaction Bonded Silicon carbide (RBSiC : 89% SiC+ 11% free Si) products, which exhibit excellent wear and corrosion resistant characteristics and are lightweight & cost effective compared to their peers .

At CUMI , we manufacture a great variety of wear resistant solutions with silicon carbide ceramics, which are build to withstand extremely harsh environments with outstanding performance. Currently, we serve Automotive, Defence, Fluid handling, Pulp & Paper and Chemical processing industries. Some of the typical applications follow:


  • Seals for chemical pumps
  • Furnace heaters
  • Pump shaft sleeves
  • Pump plungers
  • Pump cylinder liners
  • Shaft & Bush bearings
  • Piston for metering and dosing pump
  • Magnetic driven pumps
  • Canned motor pumps
  • Heater plates
  • Bushes/Washers
  • Spray Nozzles
  • O-rings
  • Ballistic tiles


Material And Properties


Excellent wear & corrosion resistance


  • Fluid handling
  • Ballistic protection
  • Extreme wear resistance


  • Longer service life, can be exposed to molten metal without pre-heating
  • Extended casting sequencesControlled and consistent casting speeds
  • High resistance to oxygen lancingMore consistent re-stranding
  • Does not contaminate the melt & hence enhances product quality & plant efficiency


  • Extremely fine grained microstructure
  • High density
  • Low porosity
  • Very smooth surface finish
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47,48(Part),Sipcot Industrial Complex, Hosur – 635126, Tamilnadu, India

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