Boron carbide is hard black with glossy crystals. Hardness is lower than industrial diamond, but higher than silicon carbide. It is less vulnerable than most pottery. It has a large thermal neutron capture cross section. Strong resistance to chemistry. The erosion of hydrogen fluoride and nitric acid. Soluble in molten base, insoluble in water and acid.
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 | 355-250 | 92-80 | 17-23 | <0.3 | 90-99 |
1. High-grade particle grinding material;
2. Make chemical ceramic,glass ,or nozzle;
3. Nuclear reactor and shielding material;
4. Produce bullet proof armor;
5. Improve the service lift of mechanical parts;
6. As additive filler for boron chemical materials;
7. Essential filler for refractory materials.