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Boron carbide powder (B4C) Print E-mail
  • Boron Carbide Synonyms:

Black diamond, B4C, boron carbide.

  • Boron Carbide Designations:

Chemical Name: Boron carbide

Chemical Formula: B4C

  • Boron Carbide Description:

The third hardest material known. A high performance abrasive material with chemical and physical properties similar to diamonds, such as chemical resistance and Hardness. Boron carbide's extra Hardness gives it the nickname "black diamond". Color is black or gray.

  • Typical Boron Carbide Chemical Properties Available:

1) General Industrial Grades Available: B + C= 94% min. (B= 77% min. & C= 17% max.) and B + C= 98% min. (B= 74% min. & C= 24% max.)

2) Standard Grade: B= 74% min., and C= 24% max., B+C= 98% min.

3) Nuclear Grade: B= 76.5% min.

4) High Purity Grade: B= 75-80%

  • Boron Carbide Particle Sizes Available:

FEPA Grit Sizes from F100 to F1500. Also granulations from coarse granules to angstrom size particles.

  • Boron Carbide Physical Constants:

Molecular Weight (g/mol.)

55.25515

Apparent Density (g/cm3)

Theoretical Density (g/cm3)

2.52

Melting Point (°C)

2450-2723

Boiling Point (°C)

3500

Surface Area (m2/g)

Thermal Conductivity (cal/s-cm-°C)

Knoop Hardness

2750

Particle Shape

irregular, platelets, & whiskers

Specific Gravity

2.51

Specific Heat (cal-mol-c)

12.5

Crystallography

monocrystalline

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  • Boron Carbide Typical Applications:

Steel modification component with high boron content, grinding, lapping, polishing, hot pressing and Sintering of hard and abrasion resistant parts with light weight, metallurgical refractories with high corrosion and oxygen resistance, moderators, and nuclear technology (reactor control rods and neutron absorbing materials)

  • Packaging:

Drums or to customer specification

  • TSCA (SARA Title III) Status:

Yes. For further information please call the E.P.A. at 1.202.554.1404

12069-32-8

 
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