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B4C Boron Carbide Abrasive Grain

High hardness Boron carbide powder, also known as B4C is produced from high-temperature smelting boric acid and carbon materials in electric furnaces.
Boron carbide is with high hardness up to Mohs’ 9.3, which is the third hard material besides Diamond and CBN.

$16,800.00$17,500.00 / MT

B4C Boron Carbide Abrasive Grain

High hardness Boron carbide powder, also known as B4C is produced from high-temperature smelting boric acid and carbon materials in electric furnaces.
Boron carbide is with high hardness up to Mohs’ 9.3. It is the third hard material rank after Diamond and CBN.

Product Features:

1.      High-temperature resistance, acid-alkali resistance

2.      Boron carbide can get a bigger Neutron interception area with high Neutron absorbability.

3.      High strength, high chemical stability

4.      Low specific gravity

TYPICAL PHYSICAL PROPERTIES:

AppearanceBlack powder
Molecular   Weight(g/mol.)55.25515
Specific   Heat(cal-mol-c)12.5
Knoop hardness2750
Mohs hardness9.6
Micro Hardness4950kgf/mm2
Density&phase2.52g/cm(Solid)
Melting point2350℃(2623.15K)
Boiling point>3500℃(>3773.15K)
Solubility in   waterInsoluble
Crystal   structureRhombohedral

Chemical composition:

Grit SizeMean Diameter in   umB%C%Fe2O3B4C%
36#600-50078-8117-220.2-0.497-99
40#500-42578-8117-220.2-0.497-99
46#425-35578-8117-220.2-0.497-99
54#355-30078-8117-220.2-0.497-99
60#315-21578-8117-220.2-0.497-99
80#200-16078-8117-220.2-0.497-99
100#160-12578-8117-220.2-0.497-99
120#125-10078-8017-220.2-0.496-98
150#100-8078-8017-220.2-0.496-98
180#80-6378-8017-220.2-0.496-98
240#60-5077-8017-220.3-0.596-97
280#50-4077-8017-220.3-0.596-97
320#40-2877-8017-220.3-0.596-97

1. Neutron absorber for nuclear facilities, as reactor control rods and neutron-absorbing shielding

2. Anti-radiation coating for protection walls

3. Polishing sapphire substrate

4. Coating of Wear-resistant electrode

5. Polishing hard alloy such as tungsten carbide as lapping abrasive material

6. wear resistance liner such as bulletproof board and Armor

7. Anti-oxidant in carbon-bonded refractory mixes

8. Wear parts such as blasting nozzles, wire-drawing dies, powdered metal and ceramic forming dies, thread guides.

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