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Boron Carbide (B₄C)

Boron carbide, or “black diamond”, is an extremely hard ceramic material that is a black crystal with a metallic luster. It has physical properties, including hardness, that rank only second to diamond. It is a high-performance abrasive material that is chemically resistant. It has a melting point of 2350ºC high thermal neutron capture capability, is wear-resisting, and has semiconducting properties.
Grades Available

Abrasive Grade: B + C= 98% min. (B= 76% min. & C= 23% max.)
Ceramic: B + C= 99% min. (B= 77% min. & C= 22.5% max.)
Refractory: B + C= 94% min. (B= 75% min. & C= 24% max.)
Nuclear: B + C= 98% min. (B= 76% min. & C= 24% max.)

Detailed Particle Size Information

Particle Size Availability: FEPA Grit Sizes from F100 to F1500.
Other sizes in FEPA and USA Mesh System are available on request: -10, -15, -20 µ
Also granulations from coarse granules to angstrom-size particles.

Typical Applications

Boron carbide is used in personal and vehicle armor plating. It is used in smelting boron steel, boron alloys, and special welding. It has uses as an abrasive for grinding, lapping, and polishing. It is used to make moderators, blast nozzles, and in nuclear technology, as a neutron absorber in reactor control rods. Boron carbide is used to manufacture padlocks, grit blasting nozzles, high-pressure water jet cutter nozzles, scratch, wear-resistant coatings, cutting tools, and dies.

Packaging Options

Standard packaging in 100 lb (30 gal.) fiber drums. Custom packaging is available on request.

Classification

Boron Carbide TSCA (SARA Title III) Status: Unknown
For further information, please call the EPA Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902.
Boron Carbide CAS Number: 12069-32-8
Boron Carbide EINECS Number: 235-111-5

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