Items

Unit

Index

Typical

Chemical

composition

B₄C

%

95-98

97

B

%

77-80

79

C

%

17-19

18

Fe₂O₃

%

0.25-0.5

0.3

F. C.

%

0.5-1

0.8

Refractoriness

℃

2450 min

Density

g/cm³

2.52 min

Mohs hardness

----

9.36

Abrasive grade

FEPA

F60, F70, F80

Refractory grade

mesh

-80, -120, -200, -325

Applications: Abrasive and Refractory Industry