Boron Carbide Grit

Manufacture and form

Boron carbide is manufactured from the raw materials boron oxide and carbon in an arc furnace at temperatures above 2,400 °C.Concurrently, the following reaction takes place:
2 B2O3 + 7 C → B4C + 6 CO
The resultant shiny black crystals are separated from unreacted material, ground and classified in further preparation steps.Depending on its further use, the material is ground until in the sub-micron range.
Boron carbide can be used as a powder with various grain sizes or as a ceramic component.To manufacture ceramic components with high relative density, fine boron carbide powder with sinter additives is moved, processed with conventional ceramic-shaping methods and sintered or hot press-molded at temperatures above 2,000 °C in an inert gas atmosphere.
 
Chemical properties
Formula B4C
Molecular weight 55.25 g/mole
Crystalline structure rhombohedric
Chemically inert (completely resistant to hydrogen fluoride and hot nitric acid)

Physical properties
Specification Weight 2.51 g/cm³
Extreme hardness 9.6 mohs

High resistance to wear at low working temperatures
High rigidity and very high E-modulus
Electrically conducting
Thermal properties
Melting point 2,350 °C

Good thermal conductivity

Packing Details  : Packing, solid bicycle saddle, 50pcs/carton

Delivery Details : 3-30 days after order of Solid bicycle tire tubes