Product description of Boron carbide:
Boron carbide, a black crystal powder, is one of the hardest Man-Made materials, its hardness with Mohs hardness 9.36 and microscopic hardness 5400-6300kg/mm2 is only near upon diamond, its density is 2.52g/cm3 and melting point is 2450℃,The boron carbide possesses properties of endurance hi/low temperature, no reaction with either acids or alkalis, high grinding efficiency, no magnetism. It is a good replacement of diamond.
Boron carbide also possesses the special properties of light quality, neutron absorbing, semi-conductivity, etc., so it is used for armed forces and nuclear industry.
Application of Boron carbide:
Boron carbide is widely applied as follows: boriding refractory, ion transfusion, film layer as well as grinding, polishing, drilling hard metal alloys, jewels, etc. Meanwhile, it is main material for the wear-resisting parts, precise meter-age element, precise spray nozzle, sealed washer, smelting boron steel, boron alloy, etc.
Boron carbide has showed many better properties of physics and chemistry in the hi-science/technology field.
Chart for grain size distribution and chemical composition of boron carbide CHINA GB2477-83
| Grit No. |
Basic Grain
(μm)
|
chemical composition |
| Total B(%) |
Total C(%) |
Content B4C(%)
|
| 60# |
250 |
77-80
|
17-21
|
96-98
|
| 70# |
212 |
| 80# |
180 |
| 90# |
150 |
| 100# |
150 |
| 120# |
106 |
| 150# |
90-75 |
| 180# |
75-63 |
76-79
|
95-97
|
| 220# |
63-53 |
| F230 |
63-53 |
| F240 |
63-50 |
| F280 |
50-40 |
| F320 |
40-28 |
| F360 |
28-20 |
| F400 |
20-14 |
75-78
|
94-95
|
| F500 |
14-10 |
| F600 |
10-7 |
| F800 |
7-5 |
74-78
|
91-94
|
| F1000 |
5-3.5 |
| F1200 |
3.5-2.5 |
| 60#~150# |
250-75 |
76-81
|
93-97
|
| 46#~120# |
350-60 |
| -100mesh |
<150 |
| -140mesh |
<100 |
| -200mesh |
<75 |
| -325mesh |
<44 |
| -25μm |
<25 |
| -10μm |
<10 |
Product Tags:
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Reaction Bonded Boron Carbide Industrial Abrasives Black Crystal Powder Images
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