Views: 222 Author: Wendy Publish Time: 2025-11-16 Origin: Site
Content Menu
● Dragon Abrasives Group Limited
● Shandong Hengqiao Energy Industrial
● Tianjin Da Abrasives Import & Export Co., Ltd
● Additional Emerging Manufacturers
● The Production Process of Silicon Carbide Grain
● Applications of Silicon Carbide Grain
● FAQ
>> 1. What is silicon carbide grain used for?
>> 2. What types of silicon carbide grains are available?
>> 3. How is silicon carbide grain manufactured?
>> 4. What determines the quality of silicon carbide grains?
>> 5. How does grain size affect the performance of silicon carbide?
China has emerged as a global leader in the production of silicon carbide grain, an essential abrasive material favored by industries such as manufacturing, metallurgy, electronics, and refractories. The silicon carbide grain market in China is characterized by advanced technology, high production capacities, and a diverse range of quality products suited for various industrial applications. This article highlights the top 10 silicon carbide grain manufacturers in China, presenting the most reliable, innovative, and competitive companies in the industry. At the forefront is Dragon Abrasives Group Limited, widely recognized for its superior product quality and robust global presence.
Dragon Abrasives Group Limited, situated in Tianjin, is a benchmark as China's leading silicon carbide grain manufacturer. The company operates advanced electric arc furnaces and integrates strict quality controls to produce black and green silicon carbide grains of the highest purity and consistency. These grains are extensively used in manufacturing grinding wheels, coated abrasives, sandpapers, and refractory materials. Dragon Abrasives invests heavily in research and development, ensuring cutting-edge production techniques that deliver superior mechanical properties such as hardness and thermal resistance. This makes their silicon carbide grain the go-to choice for global abrasives manufacturers seeking reliability and performance.
Sanhui Abrasives, headquartered in Zhengzhou, Henan Province, specializes in offering silicon carbide grains with stable performance tailored for abrasive and refractory applications. Their products undergo stringent magnetic separation and crushing processes to achieve high purity levels. Sanhui Abrasives emphasizes quality assurance and cost-effectiveness, making it a strong competitor in the mid to high-end market segments.
Based in Zhengzhou, CanAbrasive is known for its production of high-purity silicon carbide grains and refractory raw materials. The company's product portfolio complies with international standards such as FEPA and ISO 9001, ensuring consistent quality. CanAbrasive exports mainly to Asian and Middle Eastern markets, serving industries that demand abrasives with enhanced strength and durability.
Henan Superior Abrasives offers black and green silicon carbide grains with purity levels reaching 98-99%. Their products cater to bonded abrasives, grinding wheels, and metallurgical applications. Certified by international quality standards, this manufacturer also emphasizes strict process control and customer-oriented services.
Shandong Hengqiao Energy Industrial operates several production bases, with an impressive annual output of silicon carbide grains. The company produces metallurgical-grade and granular silicon carbide, widely used in foundry and refractory sectors worldwide. Hengqiao's production utilizes modern furnace technology to maintain product consistency and energy efficiency.
Bingyang Abrasives focuses on high-quality black silicon carbide grains, offering customized manufacturing solutions suitable for various abrasive industries. Their process includes advanced milling and classification technologies to meet diverse customer specifications.
Tianjin Da Abrasives is a well-established producer and supplier of silicon carbide grains. Known for their comprehensive product range and international export network, they emphasize innovation and quality management in their manufacturing process.
Though primarily based in India, Balaji International leverages China-based manufacturing partners for silicon carbide grain production. They are known for competitive pricing and a broad distribution network across Asia.
Several emerging companies in China are investing in innovative production techniques to enhance silicon carbide grain purity and reduce production costs. These manufacturers are gradually entering international markets, offering specialized products for niche applications.
Other notable manufacturers contributing to China's silicon carbide grain market include medium-sized companies focused on localized production for regional industries. These manufacturers help diversify supply options for global abrasive and refractory materials buyers.
Silicon carbide grain is traditionally manufactured by the carbothermic reduction process, also known as the Acheson process. This involves blending high-purity silica sand (SiO₂) with carbon sources such as petroleum coke or coal tar pitch. The mixture is heated to approximately 2200°C in an electric resistance furnace that generates the intense heat needed for the chemical reaction:
The reaction produces silicon carbide ingots known as "crude SiC," which undergo several subsequent steps. These include:
- Cooling and Removal: The furnace cools down slowly, and the silicon carbide ingots are extracted.
- Crushing: The ingots are crushed into smaller pieces.
- Grinding: The crushed material is ground into grains or powder form using ball mills or roller mills.
- Classification: Sieving and air classification processes ensure precise grain size distribution according to customer specifications.
- Purification: Additional processes remove impurities to improve chemical purity, critical for applications in electronics and high-performance abrasives.
The quality of silicon carbide grains significantly depends on raw material purity, temperature control, and grinding techniques. High-purity grains enhance mechanical properties like hardness, wear resistance, and thermal stability, which are vital for abrasive efficiency.
Silicon carbide grain serves as a critical component in many industries due to its exceptional hardness, thermal conductivity, and chemical stability. The key applications include:
- Abrasives: Used in grinding wheels, sandpapers, cutting tools, and polishing agents for their superior abrasive capability.
- Refractory Materials: Incorporated in refractory bricks, kiln furniture, and furnace linings for high temperature resistance.
- Ceramics: Applied in the fabrication of advanced ceramics with high strength and thermal shock resistance.
- Metallurgy: Used in foundries and metal casting as bonded abrasives for surface finishing and cutting.
- Electronics and Semiconductors: High-purity silicon carbide powders are essential substrates and components in semiconductor devices, especially power electronics.
The versatility of silicon carbide grain across these sectors makes it one of the most demanded abrasive materials worldwide.
China's silicon carbide grain industry is a vital contributor to the global abrasives and refractory material markets. Among the numerous manufacturers, Dragon Abrasives Group Limited stands out as the industry leader with its commitment to quality, innovation, and customer service. Other top manufacturers like Sanhui Abrasives, CanAbrasive, and Henan Superior Abrasives also provide high-grade products that meet international standards. The continuous advancement in production technology and quality control ensures that Chinese silicon carbide grains maintain their competitive edge. Manufacturers worldwide benefit from China's capability to supply silicon carbide grains for a wide range of industrial applications that require durability, precision, and high performance.
Silicon carbide grain is mainly used as an abrasive material in grinding wheels, sandpapers, cutting tools, and polishing agents. It is also used in refractory materials, advanced ceramics, metallurgy, and semiconductor manufacturing.
The two primary types of silicon carbide grain are black silicon carbide and green silicon carbide. Black silicon carbide is commonly used for general abrasive and refractory applications, while green silicon carbide is preferred for grinding harder materials like carbide and glass due to its higher purity.
Silicon carbide grain is produced by heating a mixture of silica sand and carbon in an electric resistance furnace at high temperatures (~2200°C). The resulting crude silicon carbide is cooled, crushed, ground, purified, and classified into desired grain sizes.
The quality depends on the purity of raw materials, temperature control during the production process, grain size uniformity, and the effectiveness of the refinement and classification stages.
Grain size influences abrasiveness and finish quality. Coarser grains remove material quickly but leave rougher surfaces, while finer grains provide smoother finishes suitable for precision work.
[1](https://technology.discousa.com/material/sic/)
[2](https://www.domill.com/What-is-the-Silicon-Carbide-Powder-Making-Process-Flow.html)
[3](https://www.azom.com/article.aspx?ArticleID=3271)
[4](https://www.washingtonmills.com/silicon-carbide/sic-production-process)
[5](https://en.wikipedia.org/wiki/Silicon_carbide)
[6](https://www.sciencedirect.com/topics/engineering/silicon-carbide-grain)
[7](https://moatcity.com/blog-kiln-furniture/born-of-extreme-heat-the-manufacturing-process-of-r-sic-explained/)
[8](https://blog.entegris.com/the-future-of-silicon-carbide-manufacturing-innovations-and-techniques)
[9](https://canabrasive.com/blog/silicon-carbide-industries.html)
[10](https://www.ipme.ru/e-journals/RAMS/no_15117/05_15117_pawar.pdf)
