Black Silicon Carbide Grains for Abrasive Applications

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Black silicon carbide (SiC) is a synthetic mineral produced in a high-temperature electric resistance furnace from quartz sand and petroleum coke. Its hexagonal crystal structure gives it outstanding physical properties, making it an ideal choice for abrasive tools, refractory materials, and metallurgical applications. As a professional supplier of abrasives and technical services, Alfa Chemistry offers high-quality black silicon carbide grains engineered to meet the demanding requirements of modern abrasive applications.

Key Features

Outstanding Hardness: With a Mohs hardness of 9.2, black SiC offers excellent cutting efficiency and durability.
Superior Thermal Conductivity: Effectively dissipates heat during high-speed grinding and cutting processes.
Sharp, Angular Morphology: It promotes aggressive material removal and clean surface finishes.
High Chemical and Oxidation Resistance: It maintains stability and performance under harsh operating conditions.

Available Grades and Applications

We offer a comprehensive range of black silicon carbide grain sizes and grades to cater to diverse abrasive applications. Our product line includes:

Macro Grains (HG-AB093)

Our FEPA-compliant macro grains are ideal for:

Resinoid Bonded Grinding Wheels: Used in metal fabrication, tool sharpening, and foundry applications.
Cut-off and Snagging Wheels: Suitable for high-speed cutting of steel and cast iron.
Anti-slip Flooring: It provides enhanced traction and abrasion resistance for industrial and architectural surfaces.

Micro Grains (HG-AB094)

Finely processed micro grains are widely used for:

Stone Polishing: Ideal for finishing marble, granite, and engineered stone with high gloss and minimal surface damage.
Lapping and Surface Finishing: It enables precision polishing in optical, electronic, and tooling industries.

Technical Data

Chemical Composition

Catalog	SiC	Free-C	Free-SiO₂	Free-Si	Fe₂O₃	Magnetic Iron
HG-AB093	98.00%	0.25%	0.70%	0.80%	0.10%	0.02%
HG-AB094	98.60%	0.15%	0.60%	0.50%	0.08%	0.04%

Bulk Density and Mean Grain Size

HG-AB093	Mean Grain Size (mm)	Bulk Density (g/cm³)	HG-AB094	Mean Grain Size (μm)	Bulk Density (g/cm³)
F8	2.460	1.35-1.55	F240	44.5	1.37-1.52
F10	2.085	1.35-1.55	F280	36.5	1.34-1.49
F12	1.765	1.35-1.55	F320	29.2	1.30-1.45
F14	1.470	1.35-1.55	F360	22.8	1.27-1.42
F16	1.230	1.35-1.55	F400	17.3	1.05-1.20
F20	1.040	1.40-1.60	F500	12.8	1.05-1.20
F 22	0.885	1.40-1.60	F600	9.3	0.93-1.08
F24	0.745	1.40-1.60	F800	6.5	0.93-1.08
F30	0.625	1.40-1.60
F36	0.525	1.40-1.60
F40	0.438	1.40-1.60
F46	0.370	1.40-1.60
F54	0.310	1.40-1.60
F60	0.260	1.40-1.60
F70	0.218	1.40-1.60
F80	0.185	1.35-1.55
F90	0.154	1.35-1.55
F100	0.129	1.35-1.55
F120	0.109	1.35-1.55
F150	0.082	1.30-1.50
F180	0.069	1.25-1.45
F220	0.058	1.25-1.45

Packaging

Standard Packaging: Available in convenient 25 kg paper bags and 1,000 kg bags.
Bulk Options: For larger volume requirements, 500 kg big bags are available upon request.

With years of expertise in the abrasive industry, our company not only supplies high-performance materials but also delivers tailored technical support to optimize your production processes. Whether for heavy-duty grinding or fine polishing, our black silicon carbide grains are engineered to deliver reliable performance and superior results. Partner with us for your abrasive needs and experience the difference that superior quality and expert technical support can make in your operations.