Product Description
Silicon carbide is an inorganic substance with a chemical formula of SiC. It is made by high temperature smelting of raw materials such as quartz sand, petroleum coke (or coal coke), and wood chips (salt is needed to produce green silicon carbide) through a resistance furnace. Silicon carbide also exists in nature, a rare mineral, moissanite. Among the non-oxide high-tech refractory materials such as C, N, and B, silicon carbide is the most widely used and most economical one.
Silicon carbide includes black silicon carbide and green silicon carbide, among which: black silicon carbide is made of quartz sand, petroleum coke and high-quality silica as the main raw materials, which are smelted at high temperature in a resistance furnace. Its hardness is between corundum and diamond, its mechanical strength is higher than corundum, and it is brittle and sharp. Green silicon carbide is made from petroleum coke and high-quality silica as the main raw material, adding salt as an additive, and smelted at high temperature in a resistance furnace. Its hardness is between corundum and diamond, and its mechanical strength is higher than that of corundum.
Detailed Photos
Product Parameters
| 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% |
- |
The Usage of Silicon carbide:
1. In the electrical industry, silicon carbide can be used as lightning arrester valve body, silicon carbon electric heating element, far infrared generator, etc.
2. In the aerospace industry, gas filters and combustion chamber nozzles made of silicon carbide have been used in rocket technology.
3. Low-grade silicon carbide can be used as steelmaking deoxidizer and cast iron additive.
4. In the carbon industry, silicon carbide can be used to produce bricks for iron-making blast furnaces, such as graphite silicon carbide, silicon carbide bricks combined with silicon nitride, etc.
5. In the production of graphite electrodes, silicon carbide is also used as the coating refractory sintering material of oxidation-resistant coating electrodes to add the coating's ability to withstand sharp changes in temperature.
6. In the manufacture of special carbon materials-biochar, propane and trichloromethylsilane are often used as gas materials. After high temperature pyrolysis, the silicon-containing pyrolytic carbon coating is accumulated on the graphite substrate to add products. The hardness, strength and wear resistance.
Silicon carbide deoxidizer is a novel high-performance composite deoxidizer, which can replace the more expensive traditional deoxidizer ferrosilicon powder and alloy powder. It is suitable for deoxidation during the smelting of ordinary steel, alloy steel and special steel. The silicon carbide deoxidizer has The advantages of rapid deoxidation, early slag formation, dense reducing atmosphere, rich foam, etc., can also effectively increase the recovery rate of elements, and also have the effect of increasing carburization, replacing part of the carburizing agent, and reducing steelmaking costs. Using silicon carbide as a steelmaking deoxidizer can stabilize the quality of molten steel, and has the effect of refining crystal grains and removing harmful impurities in molten steel. After use, the molten steel casting temperature is high, the cast billet quality is good, and the unit cost is low.
Packaging & Shipping
Packing for Silicon carbide: It is packaged in 25kg bag then in 1ton Jumbo bag.
Company Profile
Bontrue New Materials Co., Ltd. is China's leading supplier dedicated to providing its customers with the quick quotes, superior quality refractory products and abrasive products, competitive prices and fastest possible deliveries of refractory engineering solutions. Founded in Zhengzhou in east-central China, with over years of expertise in refractory engineering, the company is committed to research & development, and providing a range of high quality, innovative, cost-effective refractory products and engineering solutions.
At present, its main products are tabular alumina, blast furnace slag, refining slag, taphole clay, well block, tapping hole block and nozzle brick.
As a ISO9001:2015 certified supplier, possessing sophisticated production lines and inspection equipments, providing diverse lines of variety refractory products backed by expert R&D technical support, we develop closer customer relationships and taking on a larger role in the total supply and manufacturing chain.
Exporting first-class refractory products to the world as a mission, as a pilot enterprise of One Belt and One Road initiative pilot enterprise, Bontrue grasps the opportunity to vigorously develop overseas markets. Our products have been exported to Europe, Asia, Africa, South America and Middle Eastern countries, which enjoys good reputation.
Our Advantages
Technical Advantages
- Devoted to refractory materials R&D and manufacture;
- Powerful R&D technical strength;
- Over years of refractory engineering expertise;
- ISO 9001:2015 certified;
- Owns proprietary intellectual property rights;
- Possessing sophisticated manufacturing equipment and inspection equipment;
- Possessing advanced technics and production process;
Geographical Advantages
- Located in east-central China with highly developed transportation facilities;
- Located in one of most populas areas in the world;
- It's easy to reach any big cities in the country within just 2-3 hours by high-speed rail;
- Close to one of the country's largest international airports with well developed logistic facilities;
- Securing the most economical ocean & railroad freight rates for our customers
Enterprise advantages
- China's leading supplier in refractory engineering with top reputation and larger market share
- Providing its customers with the quickest quotes, best quality products, competitive prices and fastest possible deliveries
- Providing reliable sales and service
- Production operation and process is certified under ISO9001 quality system
- Having a vast inventory
- Cooperation with hundreds of professional agents to develop win-win partner relationship worldwide
After Sales Service
1. 7*24 hours on-line service.
2. Continuously monitor customers' usage.
3. Engineers on site for after-sale retun visit and providing techinical support.
4. Stong production capacity and plenty of inventory to ensure further orders.
5.All kinds of refining slags are produced: premelted refining slag, sintering refining slag, composite refining slag, high magnesium refining slag, high aluminum refining slag, high calcium refining slag, laddle refiing slag, tundish refining slag.
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