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Dragon Abrasives Group Limited

Add: 265# Anshanxi Street, Core Mall Times International Department, Nankai District, Tianjin, 300192 China

Fax: +86-22-87899537

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Tel: +86-22-87899539

E-mail: info@abrasives.asia

Web: http://www.abrasivesasia.com

Boron Carbide

Abrasive Boron Carbide for Grinding and Blasting

Abrasive Boron Carbide for Grinding and Blasting

Boron Carbide is a high performance abrasive material with chemical and physical properties similar to diamond (chemical resistance and hardness). It is so hard that is has been nicknamed "Black Diamond", and has become one of the leading grinding materials. Ceramic grades as well as...


Boron Carbide is a high performance abrasive material with chemical and physical properties similar to diamond (chemical resistance and hardness). It is so hard that is has been nicknamed "Black Diamond", and has become one of the leading grinding materials. Ceramic grades as well as nuclear grades for neutron absorption are available. 


Physical Properties

Appearance

Black, Solid, Odourless, Power

Oxidation Temperatur

500 oC

Melting Point

2450oC

Hardness Moh

9.6

Hardness Knoop

2800

Specific Gravity

2.52g/cc


Boron Carbide Powder Chemical Composition (% by weight)

Grain No.

Basic Grain
μm

T.B%

T.C%

Fe2O3%

Si%

BC%

F60

250

77-80

19-21

 0.25
     -0.45

0.2
     -0.4

96-98

F70

212

F80

180

F90

150

F100

125

F120

106

F150

75

F180

75-63

76-79

17-19

0.25
     -0.45

0.2
     -0.4

95-97

F220

63-53

F230

53+/_3.0

F240

44.5+/_2.0

F280

36.5+/_1.5

75-79

17-20

0.3
     -0.6

0.3
     -0.8

93-97

F320

29.2+/_1.5

F360

22.8+/_1.5

F400

17.3+/_1.0

F500

12.8+/_1.0

74-78

17-20

 0.4
     -0.8

 0.4
     -1.0

90-94

F600

9.3+/_1.0

F800

6.5+/_1.0

F1000

4.5+/_0.8

73-77

17-20

0.5
     -1.0

0.4
     -1.2

89-92

F1200

3.0+/_0.5

F1500

3+/_0.8

60#-150#

250-75

76-80

18-21

<0.3

<0.5

95-98

-100mesh

<150

75-79

17-22

<0.3

<0.5

94-97

-200mesh

<90

74-79

17-22

<0.3

<0.5

94-97

-325mesh

<45

73-78

19-22

<0.5

<0.5

93-97

-25μm

<25

73-78

19-22

<0.5

<0.5

91-95

-10μm

<10

72-76

18-21

<0.5

<0.5

90-92

Other sizes can be also available according to customer's requirements.


Boron Carbide Powders for Radiation Shielding purpose.

Item

Grade A

Grade B

Grade C

T.B

76.5—81

73-81

70-81

HNO3-Soluble-boron

0.5 max

0.6 max

--

Water-soluble-born

0.2 max

0.2 max

0.1 max

F

25mg/g max

25mg/g max

---

CHL

75 max

75 max

---

CA

0.3 max

0.3 max

---

Fe

1.0 max

1.0 max

2.0 max

T (B + C)

98 min

97 min

94 min


Boron Carbide Production Property

Materal

B4C product

SiC products

Density (gNaN-3) min

2.45

3.06

Melting Point (°C)

2450

2600(solution)

Micron Hardness (Knoop) (kgf/mm-2) min

2500

2300

Bending Strength (MPa) min

400

350

Operation Environment

High temperatur, high Pressure, heavy grinding, strong alkali,strong acid

High temperatur, high Pressure, heavy grinding, strong alkali,strong acid,high temperature oxidation, high temperature gas, pulp waste liquor



Applications

 1. Refractory material

 8.Tool and die fabrication

 2.Armor

 9.Ultra-sonic machining

 3.Nozzle

 10.Spraying of boron carbide

 4.Abrasive field

 11.Spray sand

 5.Honing stones

 12.chemistry field

 6.Metal matrix composites

 13.Consumer products

 7.Nuclear Technology

 14.computer



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