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Help Center60 Grit Coarse Rock Tumbling Silicon Carbide Polishing
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Carborundum Grit /powder for PolishingNegotiableMOQ: 1 Ton -
Black Silicon Carbide Grit /powder for PolishingNegotiableMOQ: 1 Ton
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Black Silicon CarbideNegotiableMOQ: 1 Ton
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Black Silicon Carbide SiC 24 MeshNegotiableMOQ: 1 Ton
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Black Silicon Carbide /carborundum / SiC 24 MeshNegotiableMOQ: 1 Ton
Black Silicon Carbide is produced in a high temperature electric resistance-type furnace from a mixture of quartz sand and petroleum coke.
The hardness of black silicon carbide is greater than fused alumina but less than synthetic diamond.
Its mechancial intensity is greater than fused alumina, but is brittle and very sharp. The mineral has some electrical and heat conductivity.
Black silicon carbide is typically used for machining or finishing cast iron ,non-ferrous metals, stone, leather, rubber,
and other materials where sharp cutting characteristics are important .
Available size : F4 -F220
| Grit | SiC | F.C. | Fe2O3 |
| F4-F90 | 98.50%min | 0.20%max | 0.60%max |
| F100-F150 | 98.00%min | 0.30%maxa | 0.80%max |
| F180-F220 | 97.00%min | 0.30%max | 1.20%max |
Application :
1. Black Silicon Carbide is also broadly used as high-grade refractory material and metallurgical additive.
2. The abrasive products made of it are suitable for working on Cast Iron, Non-ferrous Metal, Rock, Leather, Rubber, Wood, Ceramic, etc.
3. make grinding wheels, cutting wheels, mounted wheels, oil stone, abrasive media, and also suitable for surface grinding, lapping or polishing.
Q: Can I Use Sand Instead of silicon carbide?
Yes, you can if you want, but we bet that you will change your mind after the first batch of rocks. Here are the advantages of using rock tumbler grit (more formally known as "silicon carbide grit"...
1) Silicon carbide grit is very hard. It is much harder than the rocks that most people tumble. On the Mohs Hardness scale silicon carbide has a hardness of 9 to 9.5 while commonly-tumbled rocks such as jasper, agate, quartz and petrified wood have a Mohs Hardness of about 7. This means that silicon carbide grit can easily abrade the rocks that most people tumble. However, most beach, river, and wind-blown sands are composed of quartz, which has the same hardness as the rocks that most people tumble. Since it has an equal hardness it will be ineffective at abrading them in the tumbler barrel.
2) Quality silicon carbide grit usually occurs in angular particles. That means they have sharp points and edges that facilitate abrasion on the rocks while tumbling occurs. However, most beach, river, and wind-blown sands have rounded particles, which makes them ineffective at abrading the rocks that you are hoping that they will grind.
3) Rock tumbler grit can easily be purchased in sizes that are perfect for rock tumbling. To duplicate the coarse, medium and fine grits used in rock tumbling you would have to purchase a set of sieves, find sand of various particle sizes and separate it into the grit sizes needed for rock tumbling. We are willing to bet that you will burn more gasoline and time chasing these special particle sizes of sand than you would spend buying some good grit. It isn't that expensive.
In summary, you can use sand instead of rock tumbler grit. But, if you do that, the sand may not be effective at cutting the rocks because it has the same hardness as the rocks and it usually occurs in rounded grains. You will probably waste a lot of time and electricity trying to save money using sand instead of rock tumbler grit. We have an article titled "Can I Use Sand Instead of Grit?" that explains this in much more detail.
| Available grain sizes | |||||
| 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 |
Thanks a lot for your time of reading our product details ^^``
If there is any question ,comment or you want get product suggestion ,plz feel free to cotact us online or via email ,we will go back to you immediately !
We have engaged in all the product refered to on our webstie more than 15 years,our boss is local people ,we have stable output ,and our regular cusomers are all over the world ,mainly from Russia,South Korea,Turkey,Thaland,Singapore,Malaysia,Dubai,Israel,Iraq,Kueait,Iran,Poland,.........
It wil be our pleasure to help you ~
Sincerely appreciated for your trust and specific inquiry ~
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