Silicon Carbide, buy black Silicon Carbide grit /powder for polishing on China Suppliers Mobile

Product Details

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/ Fine powder 300-5000mesh

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.

Product name	Silicon Carbide(Carborundum)/SiC/Black Silicon Carbide/Green Carbide silica
Model No	SC
Brand name	HY,CHINA
Description	Silicon carbide is made of quartz sand, petroleum coke(or char), the sawdust as raw materials by high temperature smelting in resistance furnace.
Advantage	having sharp knife-edge.. electrical conductivity, thermal conductivity high working efficiency Highly friable abrasive media which is reusable but less durable than brown aluminum oxide Cleaning or etching the hardest sub-surfaces Used for grinding, lapping, and wire saw cutting as well as abrasive blasting
Parameter	The shape: polygon Color: black, green specific gravity:3.9g/cm3 Bulk density:1.45-1.56 g/m³ Mircohardness:2840-3320g/mm2 Mosh hardness: 9.15 Composition%: SiO≥92.5% F. C≤0.3% Fe2O3≤1.2%
Usage	clean the high hardness surface, such as: tungsten steel work piece. it is suitable for all kinds of metal and non-metal with low tensile strength’s processing. it can be used as good metallurgical deoxidizer and refractory materials. cut the friable work piece. the silicon carbide powder is coated in the inner wall of water wheel, impeller, cylinder to provide abrasion resistance and prolong life.
Shipping way	By sea, by air, by express
Delivery time	Within 7 days from the receipt of payment
Loading seaport	XINGANG(TIANJIN) PORT,CHINA
Package	25kg/bag with woven bag, 40 bags per pallet, or according to customer’s requirement.
Price term	FOB TIANJIN, CFR, CIF, FCA, EXW ect
Payment term	100% T/T in advance(negotiation)

Common Questions About Sillcon carbide

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