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Boron Carbide , Double Classifed, Various Grades

Boron Carbide , Double Classifed, Various Grades
SKU B4C Double Classifed
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FEPA Gradation, Abrasive Grade. This media is double classified (graded) to achieve a tight particle distribution specifically for polishing sapphires, or other substrates which cannot tolerate any surface scratching.

You will need to specify exact particle distribution parameters, as well as quantity, in order for us to work up a price quotation.  Triple Classification is also available if required.  We specialize in very fine particle sizes and can custom grade material to your exact specifications.

Please use our Quote Request page to obtain a bid.

Specifications of General Use Boron Carbide:

  • Typical Packaging: Depends on quantity ordered
  • Odor: Odorless
  • Safety: Avoid breathing dust; wear protective gear
  • Purity: 98% B + C minimum
  • Melting Point: 2723 ??F
  • Custom Gradation Available? Yes
  • Nickname: B4C, Black Diamond
  • Hardness: 3000 Knoop < 9.5 Mohs
  • Grain Shape: Blocky, Angular
  • Type: Granular or powdery depending on grade
  • Specific Gravity: 2.51
  • Pricing Based Per: Pound
  • NMF Classification: Class 55
  • Color: Black
  • Instability: Stable
  • Hazardous? Not listed as hazardous; see other cautions
  • Disposal: According to Federal, State, Local regulations
  • Fire & Explosion: Fines can cause explosion and smolder
  • Keep away from all sources of ignition
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