Black Silicon Carbide is brittle and sharp. It has a good electrical and heat conductivity. Its Knoophandness is 3100-3280kg/mm2.
Green Silicon Carbide is a synthetic brittle carborundum with high thermal conductivity and high strength which get no decrease in 1000ºC( 7.5 times stronger than Alumina)
Green silicon carbide is characterized by extreme hardness (Mohs 9.4/2600 Knoop) which only ranks after CBN and B4C.
The abrasives made of silicon carbide 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.
Black Silicon Carbide | ||||
Item | SiC | Fe2O3 | Free Carbon | SiO2 |
SiC97 | ≥97% | ≤1.0% | ≤0.5% | ≤1.5% |
SiC95 | ≥95% | ≤1.5% | ≤1% | ≤2.5% |
SiC92 | ≥92% | ≤2.0% | ≤2.5% | ≤3.5% |
SiC90 | ≥90% | ≤2.5% | ≤3% | ≤4.0% |
Green Silicon Carbide | ||||
SiC99 | ≥99% | ≤0.2% | ≤0.2% | - |
Grit Size and Standard
Standard | Particle Size | SiC ≥ (%) | F.C ≤ (%) | Fe2O3 ≤ (%) |
GB | F4-F90;P12-P100 | 99.10 | 0.20 | 0.20 |
JIS | 8# - 220# | 98.0 | / | / |
OCT | 10#;12# | 98.0 | 0.4 | (Fe) 0.3 |
GB | F320-F500; P400 | 97.5 | 0.30 | 0.50 |
JIS | 240# - 3000# | 96.0 | / | / |
OCT | M40-M14 | 98.0 | 0.4 | (Fe) 0.2 |




FAQ
Q1: Are you trading company or manufacturer?
A: We are manufacturer.
Q2: Are samples free or not?
A: Sample can be free of charge. Only shipping needs to be paid by your side.
Q3. Can you customize the grain size or parameters according to my requirement?
A: Yes, we can customize.
Q4. Do you test all your goods before delivery?
A: We have laboratories to test the chemical and physical properties of our SiC. We will repeatedly test during production and before shipping to ensure that the product meets the appointed standards.
Please feel free to ask me if you have any questions. Thank you ^^