Green silicon carbide F800

Green silicon carbide F800 is a very hard abrasive material. Its hardness of it only ranks after diamond and B4C, and it is harder than black silicon carbide. So it is suitable to grinding large range of hard material such as titanium alloy, marble, carbide alloy, optical glasses, ceramics, etc.

$3,400.00$3,460.00 / MT

Green silicon carbide F800

Green silicon carbide F800

Green silicon carbide F800 is a very hard abrasive material. Its hardness of it only ranks after diamond and B4C, and it is harder than black silicon carbide. So it is suitable to grinding large range of hard material such as titanium alloy, marble, carbide alloy, optical glasses, ceramics, etc.

Green Silicon Carbide is produced at high temperatures in an electric resistance-type furnace with quarts of sand and petroleum coke. The SiC purity of green silicon carbide is up to 99%min. It is an artificial brittle SiC with high thermal conductivity and high strength which get no decrease at 1000 centigrade.

Typical physical properties of Green silicon carbide F800
Mohs Hardness:9.5
Vickers Hardness:3100-3400kg/mm2
Specific Gravity:3.2g/cm3
Bulk density(LPD):1.2-1.6 g/cm3
Particle shape:Hexagonal
Melting Point:Dissociated at about 2600 centigrade
Maximum service temperature:1900 centigrade
Thermal conductivity0.013 cal/cm2.sec (900°C)
Thermal expansion coefficient7-9 x10-6 /℃(0-1600°C)


Chemical analysis of Green silicon carbide F800
Chemical ContentF20-F220JIS240#-JIS10000#
SiCMin 99%Min 98.5%
SiO2Max 0.50%Max 0.70%
F,SiMax 0.20%Max 0.40%
Fe2O3Max 0.10%Max 0.15%
F.CMax 0.20%Max 0.30%
L.O.IMax 0.05%Max 0.09%


Green silicon carbide F800 particle size:
Grit SizeD10(um)D50(um)D90(um)D97(um)
GC F8007.20811.36017.21120.319


Product Feature of Green silicon carbide F800


  1. Extremely high hardness (Mohs 9.5, Vickers 3100-3400kg/mm2) with high wear-resistance ability. The hardness of SiC decrease with the increase of temperature. But still, even at the temperature of 1200°C, the hardness of green SiC is about twice that of fused alumina.
  2. Excellent chemical resistance and oxidation resistance. When heated at high temperatures, silicon carbide only oxidizes on the surface, forming a silicon dioxide film. The film can protect the silicon carbide material from oxidation. As a result, even at 1600°C, green SiC can maintain stability to most strong acids and alkalis.
  3. High Toughness. The toughness of silicon carbide abrasive refers to the difficulty of breaking under the action of external force. Taking F46 grit as an example, the toughness of carborundum tested by the static pressure method is about 68-78%. Compared with fused alumina, the mechanical strength of silicon carbide is higher. F120 for example, the compressive strength of silicon carbide is 186KN/cm2, and the compressive strength of corundum abrasive is 100KN/cm2.
  4. Excellent thermal shock resistance with low thermal expansion coefficient. At a temperature of 25-1400 °C, the average thermal expansion coefficient of silicon carbide is 4.4×10-6/°C, while the thermal expansion coefficient of fused alumina is 7-8×10-6/°C.
  5. High-temperature resistance; high-temperature strength. The melting point of green silicon carbide is 2600 °C, and the maximum operating temperature can reach 1900 °C. Applying silicon carbide to the inner wall of the engine can increase the life of the engine.
  6. High purity. The green silicon carbide grain from us is milling from A grade green SiC block. Then sieve to high consistency particles.
Applications of Green silicon carbide F800
  1. Precision polishing for hard optical glass such as camera lens.
  2. Abrasive blasting on hard metal CNB knife such as titanium alloy, carbide alloy, etc.
  3. Polishing and grinding quartz glass.
  4. Grinding hard stone, marbles, granite, etc.
  5. Polishing PZT/ Piezoelectric ceramic.
  6. Blasting copper and copper alloy.
  7. Surface treatment on diamond tools.
  8. Wire sawing.
  9. Polishing jewelry such as diamond and cinnabar.
  10. Grinding other thin brittle material precise component.
  11. Anti-fire novel Nano Aerogel.
  12. Fire insulation material such as sintered ceramics.
  13. Teflon coating.
  14. Fluorocarbon coating and paint.
  15. High-quality brake additives such as airplane brakes.
  16. Silicon carbide ceramic filler.
  17. Polishing tools such as wet diamond polishing pad, PVC grinding disc, etc.

Specification of Green silicon carbide powder
JIS Grit SizeD0(Micron)D3(Micron)D50(Micron)D94(Micron)
#240≤ 127≤ 10357.0±3.0≥ 40
#280≤ 112≤ 8748.0±3.0≥ 33
#320≤ 98≤ 7440.0±2.5≥ 27
#360≤ 86≤ 6635.0±2.0≥ 23
#400≤ 75≤ 5830.0±2.0≥ 20
#500≤ 63≤ 5025.0±2.0≥ 16
#600≤ 53≤ 4120.0±1.5≥ 13
#700≤ 45≤ 3717.0±1.5≥ 11
#800≤ 38≤ 3114.0±1.0≥ 9.0
#1000≤ 32≤ 2711.5.±1.0≥ 7.0
#1200≤ 27≤ 239.5±0.8≥ 5.5
#1500≤ 23≤ 208.0±0.6≥ 4.5
#2000≤ 19≤ 176.7±0.6≥ 4.0
#2500≤ 16≤ 145.5±0.5≥ 3.0
#3000≤ 13≤ 114.0±0.5≥ 2.0
#4000≤ 11≤ 8.03.0±0.4≥ 1.8
#6000≤ 8.0≤ 5.02.0±0.4≥ 0.8
#8000≤ 6.0≤ 3.51.2±0.3≥ 0.6


FEPA standard:

Grit SizeD3(um)D50(um) D94(um)
F1200<73.0±0.5>1(at 80%)
F1500<52.0±0.4>0.8(at 80%)
F2000<3.51.2±0.3>0.5(at 80%)
Production details of Green silicon carbide F800

Packing of Green silicon carbide F800



Q: What is the difference between green silicon carbide and black silicon carbide?

A: First of all, Green silicon carbide has a higher purity of SiC(99%), black silicon carbide SiC purity is min 98%. Secondly, green silicon carbide is harder than black silicon carbide.


Q: Is the green silicon carbide powder from you by airflow sieving or water sieving?

A: Our green silicon carbide powder is made by the water sieving process(suspension treated). So the particles are of high consistency.


Q: What are the HS code and CAS NO. of silicon carbide?

A: HS code is 2849200000. CAS NO. is 409-21-2.


Q: Is there any restriction to export silicon carbide material from China?

A: Yes, it has to get an export license to export. We will provide it to customs.


Q: How many kgs of free samples can we get?

A: We provide free samples of less than 1 kg. Clients have to bear the express cost and DGM certificate cost.


Q: How do you inspect products before delivery?

A: We will check items of chemical, density, particle size distribution, and packing before delivery. After delivery, we keep samples of each batch for 3 months.


Q: Do you demand MOQ?

A: MOQ is 1 bag, always goes 25kgs. The transportation cost will be higher than that of 1MT.


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