Black silicon carbibde
SIC 98%.......F.C 0.35%....Fe2o3 0.6%..... Magnetic material content 0.0023%.....color black ……hardness(mohs) 9.15…….ture density 3.9
Marterials: petroleum coke
Black silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw marterials .Its hardness is between fused alumina and synthetic diamond.Mechanical intensity of it is higher than fused alumina .It is brittle and sharp has electrical and heat conductivity in some degree.The abrasives made of it are suitable for working on cast iron,non-ferrous metal,rock, leather,rubber,etc.It is also broadly used as refractory material and metallurgical additive.
Abrasives grade
Grit size: 16#,20#,24#30#,36#,46#,54#,60#,80#,100#,120#,150#,180#,220#
Micropowder:240#,280#,320#,360#,400#,500#,600#,800#,1000#,1200#,1500#
2000#,2500#,3000#,4000#
Refractory grade:1-0mm,3-1mm,5-3mm,5-8mm -200mesh,-240mesh,-320mesh
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Physical and chemical analysis:
- Al2O3: 78% minimum
- TiO2: 3.5% maximum
- Fe2O3: 5% maximum
- SiO2: 9% maximum
- Crystal system: hexagonal
- Color: black/brown
- Micro hardness: HV 1,800 to 2,200
- Grinding ability (compared with diamond as one): 0.10
- Hardness (mohs): 9
- True density: 3.9g/cm3
- Bulk density: 1.68 to 1.95g/cm3
- Applications:,ul>
- Suitable for grinding high-speed, high carbon steel
- High-grade refractory materials
- Abrasives tool
- Grinding and polishing
- Ceramics
- LED
- Sandblasting

