Silicon Carbide (SiC), also known as carborundum, is widely used in steelmaking, refractory production, ceramics and abrasive processing. Black Silicon Carbide is produced from quartz sand and petroleum coke through a high-temperature reduction process.
With high hardness, wear resistance, chemical stability and good thermal performance, Silicon Carbide is suitable for demanding industrial applications. The right specification depends on the production process and required chemical composition.
Silicon Carbide Chemical Composition
SiC content is a key indicator when selecting Silicon Carbide. Carbon and Fe₂O₃ are also important, especially when SiC contributes to the chemical composition of the production process.
Our typical Black Silicon Carbide specifications are:
| Particle Size | SiC | C | Fe₂O₃ |
| 12#–19# | 98.5% | 0.2% | 0.6% |
| 100#–180# | 98% | 0.3% | 0.8% |
| 220#–240# | 97% | 0.3% | 1.2% |
In steelmaking, Silicon Carbide provides silicon and carbon, so chemical composition needs to be considered as part of the overall charge. In refractory, ceramic and abrasive production, the specification should match the formulation and processing requirements.
Particle size is also part of the product specification. Coarse and fine grades have different processing characteristics, so the required particle range should be confirmed before ordering.
Black Silicon Carbide Properties
Black Silicon Carbide has a Mohs hardness of 9.2–9.5 and a microhardness of about 3300 kg/cm². Its high hardness provides strong wear resistance for grinding, cutting and other abrasive applications.
Black Silicon Carbide also offers good mechanical strength and chemical stability. These properties support use in demanding industrial environments where material durability is important.
High thermal conductivity and low thermal expansion make Silicon Carbide suitable for high-temperature applications. Its electrical conductivity also provides value in selected industrial processes.
Silicon Carbide Applications
In steelmaking, Silicon Carbide is used as a source of silicon and carbon. Consistent chemical composition helps steel producers control the overall charge chemistry during production.
Black Silicon Carbide is also used in refractory and ceramic production because of its hardness, thermal properties and wear resistance. The material can be used in formulations exposed to high temperatures and mechanical stress.
In abrasive processing, the high hardness of Black Silicon Carbide provides strong grinding and cutting performance. Different particle ranges can be selected according to the specific processing requirements.
Silicon Carbide Manufacturer and Supplier
Anyang Zhenxin Metallurgical Materials Co., Ltd. supplies Silicon Carbide for steelmaking, refractory, ceramic and abrasive applications from Anyang, China. Our factory covers more than 40,000 m² and operates more than 30 alloy smelting and processing lines.
The company follows an ISO 9001:2015 quality management system and supports product inspection and technical documentation for international orders. TDS, COA and third-party inspection can be provided according to customer requirements.
We also coordinate production, packaging and loading for bulk orders based on confirmed specifications. Send us your required Silicon Carbide specification and quantity for a quotation.