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$Low Price Refractory Sic Silicon Carbide SIC 98% 200 mesh High Purity Silicon Carbide granule$

Low Price Refractory Sic Silicon Carbide SIC 98% 200 mesh High Purity Silicon Carbide granule

Metal Silicon 553,10-100mm,Best Quality,Favorable Price,Delivery On Time,Used In Aluminum Plant

Metal Silicon 521, 10-100mm, Best Quality, Favorable Price, Delivery On Time, Used In Aluminum Plant

Metal Silicon 441,10-100mm,Best Quality,Favorable Price,Delivery On Time,Used In Aluminum Plant

Low Price High Purity Silicon Carbide SIC 88% 0-10MM from China Suppliers and Factory for Refractory Applications

Silicon carbide, recognized by its chemical formula SiC, is a crucial inorganic compound produced through the high-temperature smelting of raw materials like quartz sand, petroleum coke (or coal coke), and sawdust. In the production of green silicon carbide, salt is often added during this process, which takes place in resistance furnaces. As a semiconductor, silicon carbide is found in nature as the rare mineral moissanite. Since 1893, it has been manufactured on a large scale as both powders and crystals, primarily used for abrasives. Among non-oxide high-tech refractory materials, which include elements like carbon, nitrogen, and boron, silicon carbide stands out as the most widely utilized and cost-effective option. Often referred to as steel sand or refractory sand, it is a staple in various industrial applications. As a leading supplier and factory in China, we ensure high-quality silicon carbide products to meet the diverse needs of our clients globally

Packing: 1mt pp bag or 20kg or 25kg small bag in 1mt pp bag or 25kg paper bag,as customer’s requirement.
Transportation: Ocean ship
Delivery: Within 5days after deposit
Payment terms: TT, L/C

Product Details

Product introduction

The silicon carbide produced by Chinese industry is divided into two types: black silicon carbide and green silicon carbide, both of which are hexagonal crystals Black silicon carbide (95% SiC) and has higher toughness than green silicon carbide. It is mostly used for processing materials with low tensile strength, such as glass, ceramics, stone, refractory materials, cast iron, and non-ferrous metals. Low grade silicon carbide (85% SiC) is an excellent deoxidizer, which can accelerate steelmaking speed, facilitate chemical composition control, and improve steel quality. In addition, silicon carbide is also widely used to make silicon carbide rods for electric heating elements. Green silicon carbide contains over 97% SiC and has good self sharpening properties. It is mostly used for processing hard alloys, titanium alloys, and optical glass, as well as for honing cylinder liners and precision grinding high-speed steel cutting tools.

Performance Characteristics of Silicon Carbide

High Temperature Stability

Silicon carbide has excellent high-temperature stability and can maintain structural stability at temperatures above 2000 ℃ without melting.

Corrosion Resistance

Silicon carbide has good corrosion resistance to various chemical media, including acids, alkalis, salts, etc.

High Hardness & Wear Resistance

Silicon carbide has a hardness second to diamond and has high wear resistance, making it an ideal abrasive and cutting tool material.

The Use of Silicon Carbide

1. Abrasive, Grinding & Optoelectronic

Ideal for metal, stone, and glass processing due to high hardness and thermal stability. The wide bandgap structure also makes it suitable for high-power lasers, photodiodes, photodetectors, and optoelectronic devices.

2. Power Electronic Devices

High thermal conductivity, voltage bearing capacity, and high-temperature performance make it ideal for diodes and transistors, improving power system efficiency and reliability with higher switching speeds.

3. Ceramic Materials

Used for high-temperature furnaces, corrosion-resistant pipelines, wear-resistant valves, bearings, high-precision instruments, and semiconductor processing equipment due to excellent heat/corrosion resistance and low thermal expansion.

Detailed presentation

Frequently Asked Questions (FAQ)

What is the difference between black and green silicon carbide?

Black silicon carbide contains approximately 95% SiC and has higher toughness, making it ideal for processing low tensile strength materials like glass, ceramics, stone, and cast iron. Green silicon carbide contains over 97% SiC, has good self-sharpening properties, and is mainly used for processing hard alloys, titanium alloys, and optical glass.

What are the main performance characteristics of silicon carbide?

Silicon carbide features exceptional high-temperature stability (maintaining structure above 2000 ℃ without melting), excellent corrosion resistance to acids, alkalis, and salts, and extreme hardness second only to diamond, offering superior wear resistance.

How is low grade silicon carbide (85% SiC) utilized in industry?

Low grade silicon carbide serves as an excellent deoxidizer in steelmaking. It accelerates the steelmaking process, helps control chemical composition, and improves the overall quality of the steel.

Why is silicon carbide preferred for power electronic devices?

Its high thermal conductivity, high voltage bearing capacity, and excellent high-temperature performance make it ideal. Silicon carbide-based diodes and transistors provide faster switching speeds and lower power consumption, enhancing the reliability and efficiency of power systems.

What ceramic applications benefit from silicon carbide?

Due to its heat resistance, corrosion resistance, and low thermal expansion coefficient, it is widely used to manufacture high-temperature furnaces, corrosion-resistant pipelines, wear-resistant valves, bearings, high-precision instruments, and semiconductor processing equipment.

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