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Boron Carbide Micropowder

It is smelted from boric acid and powdered carbon in electric furnace at high temperature. With the high hardness at 4950kg/cm2, it is suitable for a variety of refractory application.
Physical Properties
Color Shape True Specific Gravity Hardness Melting Temperture
Black Blocky, angular and edge sharp 2.52 g/cm3 Knoop 3000, Mohs 9.5 2450 oC
Typical Specification(-25 micron)
Chemical Total B B2O3 Free B Compound B Total C Free C Compound C Fe2O3 B4C
76.39% 0.24% 0.45% 75.94% 22.70% 1.93% 20.77% 0.20% 96.71%
Size
-100mesh -200mesh -325mesh -25 micron