Description

Silicon Carbide CAS NO 409-21-2 is a high-performance synthetic ceramic material composed of silicon and carbon. It is valued for its exceptional hardness, high thermal conductivity, chemical inertness, and semiconductor properties. This versatile material is essential for demanding applications across the abrasives, refractory, metallurgical, and advanced electronics industries.

Application

• Abrasive & Polishing Media: Used in bonded and coated abrasives, grinding wheels, sandpaper, and lapping compounds for metals, glass, and stone.
• Refractory & Ceramic Materials: A key component in high-temperature furnace linings, kiln furniture, and advanced structural ceramics due to its thermal shock resistance.
• Metallurgical Additive: Employed as a deoxidizing agent and silicon/carbon source in iron, steel, and non-ferrous metal production.
• Semiconductor & Electronics: Serves as a substrate for high-power, high-frequency electronic devices (e.g., LEDs) and as a heating element in industrial furnaces.
• Wear-Resistant Components: Used in the manufacture of seals, bearings, and blast nozzles where extreme durability is required.
• Automotive & Aerospace: Found in high-performance brake discs, ceramic matrix composites (CMCs), and other friction components.
• Water Jet Cutting: Acts as the abrasive garnet in high-pressure water jet cutting systems.
• Antioxidant in Steelmaking: Functions as an antioxidant additive to improve the quality and performance of certain steel grades.

Basic Information

Product Name	Silicon Carbide
CAS No.	409-21-2
Molecular Formula	SiC
Molecular Weight	40.10 g/mol
Synonyms	Carborundum; Silicon(IV) carbide; Moissanite; Alpha silicon carbide; Beta silicon carbide; SiC; Carbon silicide
EINECS	206-991-8

Quality Control

Our Silicon Carbide is produced and tested under strict quality management systems. Each batch is analyzed for key parameters including purity, particle size distribution, and chemical composition to ensure it meets the rigorous demands of industrial applications. Certificates of Analysis (COA) are provided with every shipment, and we can support compliance with relevant industry standards upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizers. The product is generally stable under these conditions but may degrade if exposed to prolonged moisture or extreme temperatures.

Specification

Item	Specification
Appearance	Green to black crystalline powder or granules
Identification (XRD)	Conforms to structure
Assay (SiC Content)	≥ 98.0%
Free Silicon (Si)	≤ 0.2%
Free Carbon (C)	≤ 0.3%
Iron (Fe)	≤ 0.1%
Particle Size (Custom)	F8 - F1200 or as per customer requirement
Bulk Density	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.