High Duribility Silicon Carbide Powder for Kiln Furniture
Description:
Silicon Carbide Abrasive Powder is a high-quality abrasive material made from silicon carbide grains and petroleum coke in an electric resistance furnace at high temperatures.
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Specifications:
| Physical property |
| Crystal shape | Hexagonal |
| Bulk density | 1.55-1.20g/cm3 |
| Grain density | 3.90g/cm3 |
| Mohs Hardness | 9.5 |
| Knoop Hardness | 3100-3400 Kg/mm2 |
| Shatter strength | 5800 kPa·cm-2 |
| Color | Green |
| Melting point | 2730ºC |
| Thermal conductivity | (6.28-9.63)W·m-1·K-1 |
| Linear expansion coefficient | (4 - 4.5)*10-6K-1(0 - 1600 C) |
Application:
Black silicon carbide has metallic luster and contains more than 95% SiC. It is stronger than green silicon carbide but has lower hardness. It is mainly used for grinding cast iron and non-metallic materials. The molecular formula is SiC. Its hardness is between corundum and diamond, and its mechanical strength is higher than corundum. It can be used as an abrasive and some other industrial materials. Silicon carbide for industrial use was successfully developed in 1891 and was the earliest artificial abrasive. Although a small amount of silicon carbide exists in meteorites and the earth's crust, no mineable mineral source has been found so far. Black silicon carbide contains about 98.5% SiC, and its toughness is higher than green silicon carbide. It is mostly used to process materials with low tensile strength, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals.
Silicon carbide has stable chemical properties, high thermal conductivity, small thermal expansion coefficient, and good wear resistance. In addition to being used as an abrasive, silicon carbide has many other uses. For example, silicon carbide powder is coated on turbine impellers or cylinder blocks using special processes. The inner wall can improve its wear resistance and extend the service life by 1 to 2 times; the refractory material made of it is thermal shock resistant, small in size, light in weight, high in strength, and has good energy saving effect. Low-grade silicon carbide (containing about 85% SiC) is a better deoxidizer. It can speed up steelmaking, facilitate control of chemical composition, and improve the quality of steel.
FAQ:
Q : How can you control your quality?
A : For each production processing, ZhenAn have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods.
Q: Are you a manufacture or trader?
A: Both, we not only can provide the high quality products with the best price, but also can offer the best pre-sale service and after-service.
Q : Do you provide free samples?
A : Of course, free samples are available.
Q: What is your lead time?
A : It usually needs about 15- 20 days after receiving the PO.
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