Black Silicon Carbide Grain
Black Silicon Carbide Introduction:
Black Silicon Carbide is also called black carborundum. This material is obtained from the synthesis of high purity quartz sand and petroleum coke as basic raw materials under high temperature in an electric resistance furnace. Compared with green silicon carbide, the purity, hardness, and brittleness of black SiC are lower. It contains 85-98% of SiC and the admixtures of Fe2O3, Al2O3, CaO, SiO2, MnO2. It is characterized by great hardness (9,2 in Mohs scale) and microhardness (circa 2940- 3320 KG/mm2). Besides, it has a good thermal conductivity, low thermal expansion (decreasing with temperature growth) and high strength ensure black sic widely used. It is hardness and sharpness makes it a very aggressive material for application in which high purity is requested. Sic is widely used in grinding wheels, lapping materials, and refractory raw materials.
Black Silicon Carbide F36
Black Silicon Carbide Chemical Analysis:
Purpose | Grain | Chemical(%) | |||
SIC min | F.C max | Fe2O3max | |||
Abrasive grade | F | 12-80 | 98 | 0.20 | 0.6 |
90-150 | 97 | 0.30 | 0.8 | ||
180-220 | 96.5 | 0.30 | 1.2 | ||
240-1200 | 96 | 0.35 | 1.35 | ||
Refractory grade | Segments | 0-1mm | 97 | 0.35 | 1.35 |
Fine | -180mesh | 97 | 0.35 | 1.35 | |
Black Silicon Carbide Physical Properties:
Color | Black |
Hardness(Mohs) | ≥9 |
Microhardness(kg/mm2) | 2940-3320 |
Melting point(℃) | 2600 |
Maximum temperature(℃) | 1900 |
True density(g/cm3) | 3.20-3.25 |
Bulk density(g/cm3) | ≥1.38 |
High thermal conductivity(W/m-K) | 100 |
Linear expansion coefficient (at 900℃α·10-6K-1) | 4.4 |
Applications:
• For making coated and bonded abrasives applications.
• Used in advanced refractory materials, functional ceramic sand metallurgical materials.
• For grinding, lapping, precision casting, etc.
Our Advantages:
1.Professional manufacturer, more than 20 years of experiences
2.Ensure clients stable quality
3.Having our own testing laboratory which guarantees products quality
4.Available to deliver samples to clients before place an order. Trail order for testing is also workable.
5.Production capacity: over 40, 000 tons per year.
6.Available to customize according to clients specifications.
Granule specifics:
Macrogrit Sizes F12 to F220
0-1mm, 1-3mm, 3-5mm, 5-8mm, etc.
Grit No. | Micron | Grit No. | Micron | Grit No. | Micron |
10 | 2360 ~ 2000 | 30 | 710 ~ 600 | 80 | 212 ~ 180 |
12 | 2000 ~ 1700 | 36 | 600 ~ 500 | 90 | 180 ~ 150 |
14 | 1700 ~ 1400 | 40 | 500 ~ 425 | 100 | 150 ~ 125 |
16 | 1400 ~ 1180 | 46 | 425 ~ 355 | 120 | 125 ~ 106 |
20 | 1180 ~ 1000 | 54 | 355 ~ 300 | 150 | 106 ~ 75 |
22 | 1000 ~ 850 | 60 | 300 ~ 250 | 180 | 90 ~ 63 |
24 | 850 ~ 710 | 70 | 250 ~ 212 | 220 | 75 ~ 53 |
Packaging:
1M/T woven bag or 25kgs woven/paper bag, Pallet available
Packing customizable upon negotiation