Boron Carbide, a black powder, is the hardest of the conventional abrasives. Its Mohs hardness is 9.36, melting point at 2450°C,density 2.51g/cm3. It has following unique features: neutron absorbing, of semi-conductivity, low thermal conductivity, high grinding efficiency and no reaction with either acids or alkali etc. Boron carbide is widely used to grind and polish hard metal alloy, super-hard metal, high carbidesteel, jewel, hard ceramic and other hard materials, tomanufacture wear-resisting parts, metal cutting tools, nozzlesand neutron-absorbing rods, used as metal additive forcompound materials for military planes and as raw materials for metal boride, metal ceramic, boron steel, boron alloy and for special welding and refractory materials.
Chemical Composition (by weight %)
|
Grain No. Basic Grain um |
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 |
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F80 180 |
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F90 150 |
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F100 125 |
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F120 106 |
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|
F150 75 |
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|
F180 75-63 |
76-79 |
17-19 |
0.25 -0.45 |
0.2 -0.4 |
95-97 |
|
F220 63-53 |
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|
F230 53+/_3.0 |
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|
F240 44.5+/_2.0 |
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|
F280 36.5+/_1.5 |
75-79 |
17-20 |
0.3 -0.6 |
0.3 -0.8 |
93-97 |
|
F320 29.2+/_1.5 |
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|
F360 22.8+/_1.5 |
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|
F400 17.3+/_1.0 |
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|
F500 12.8+/_1.0 |
74-78 |
17-20 |
0.4 -0.8 |
0.4 -1.0 |
90-94 |
|
F600 9.3+/_1.0 |
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|
F800 6.5+/_1.0 |
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|
F1000 4.5+/_0.8 |
73-77 |
17-20 |
0.5 -1.0 |
0.4 -1.2 |
89-92 |
|
F1200 3.0+/_0.5 |
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|
F1500 3+/_0.8 |
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|
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 |
|
-25um <25 |
73-78 |
19-22 |
<0.5 |
<0.5 |
91-95 |
|
-10um <10 |
72-76 |
18-21 |
<0.5 |
<0.5 |
90-92 |
|
Other sizes can be also available according to customer’s requirements. |
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Applications
|
1.Refractory material |
8.Tool and die fabrication |
|
2.Ballistic 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 |
