Color

Black Powder

Molecular Formula

B4C

Density & phase

2.52g/cm3   Solid

Solubility In Water

Insoluble

Melting Point

2450°C

Boiling point

3500°C

Crystal Structure

Rhombohedra

Mohs Hardness

9.6

Micro Hardness

4950kgf/mm2

Grit Size

Size(μm)

Chemical   Composition

B%

C%

Fe2O3%

BC%

60#

315-215

78-81

17-22

0.2-0.4

97-99

80#

200-160

100#

160-125

120#

125-100

78-80

17-22

0.2-0.4

96-98

150#

100-80

180#

80-63

240#

60-50

77-80

17-22

0.3-0.5

96-97

280#

50-40

320#

40-28

W40(360#)

35-28

76-79

17-21

0.3-0.6

95-97

W28(400#)

28-20

W20(500#)

20-14

75-79

17-21

0.4-0.8

94-96

W14(600#)

14-10

W10(800#)

10-7

74-78

17-21

0.4-0.9

92-94

W7(1000#)

7-5

W5(1200#)

5-3.5

74-78

17-21

0.5-0.9

90-93

W3.5(1500#)

3.5-2.5

-325#

<45

74-79

17-22

<0.4

92-97

0-44μm

<45

-200#

<90

74-80

17-22

<0.3

94-97

-100#

<150

-25μm

<25

74-79

17-21

<0.3

92-96

-10μm

<10

74-78

17-21

<0.3

91-95

60#-150#

250-75

77-81

17-22

<0.3

95-98

40#-120#

315-106

30#-60#

355-250

Boron carbide
block

Low-mid-high
carbon

92-80

17-23

<0.3

90-99