Carborundum powder is a finely ground form of silicon carbide (SiC), one of the hardest synthetic abrasives used in industrial processing. With its exceptional hardness, thermal stability, and chemical inertness, carborundum powder is widely used for grinding, lapping, polishing, and surface preparation in multiple sectors.
In this article, we explain the properties, uses, available grades, and global sourcing trends of carborundum powder — also known as silicon carbide powder.
Carborundum is the trade name for silicon carbide, originally coined by Edward Acheson in the late 1800s. Today, it refers to either black or green silicon carbide used in abrasive or technical applications. In powdered form, carborundum is classified by grit size or micron size, depending on the precision required.
At Sanhui Abrasives, we manufacture both black and green carborundum powders, tailored to your application—from metal polishing to ceramic shaping.
Carborundum powders are categorized by particle size, purity, and shape. Typical grit size ranges include:
For more sizing detail, view our FEPA grit size chart.
| Property | Carborundum (SiC) | Aluminum Oxide | Boron Carbide |
|---|---|---|---|
| Hardness (Mohs) | 9.2–9.5 | 8.5–9.0 | 9.5+ |
| Thermal Stability | Excellent | Moderate | High |
| Cost-efficiency | High | Economical | Expensive |
| Typical Uses | Grinding, lapping, ceramics | Wood, metal sanding | Hard armor, ballistic use |
Sanhui Abrasives is a trusted supplier of high-purity silicon carbide powder in black and green forms. We serve industrial buyers in optics, metal finishing, and ceramics worldwide. With customizable grain sizes and OEM packaging, we support volume orders and technical sourcing needs.
Request a sample or contact us for detailed technical specs: Get in touch with our team.
Yes. Carborundum is a trade name for silicon carbide, and both terms are used interchangeably in industrial contexts.
Green SiC has higher purity and is more suitable for precision polishing or ceramic shaping. Black SiC is more economical and widely used in grinding and abrasives.
Yes. We supply bulk carborundum powder in bags, drums, or OEM-labeled small packs based on client requirements.
Carborundum powder is a versatile, high-performance abrasive suitable for demanding industrial processes. Whether you're polishing optical lenses or grinding hard metals, silicon carbide powder from Sanhui Abrasives delivers consistent performance and global reliability.
Tags: Black Silicon Carbide, White Fused Alumina, Brown Fused Alumina, Pink Fused Alumina, Black Fused Alumina
