Name: China Abrasive Black Sic Silicon Carbide For Grinding Manufacturers, Suppliers and Factory - ZhenAn International
Brand: ZhenAn
SKU: 261190442

Description

Product Introduction

Abrasive black SiC silicon carbide is a premium synthetic abrasive material manufactured through the high-temperature fusion of silica sand and carbonaceous raw materials. Unlike conventional abrasives, black SiC features a uniquely sharp, angular grain morphology that fractures along crystalline planes to expose fresh cutting edges throughout its service life.

This self-sharpening characteristic makes black SiC the abrasive of choice for grinding hard, brittle, or heat-sensitive materials where controlled material removal and minimal thermal damage are essential. From heavy-duty stock removal to fine surface finishing, abrasive black SiC delivers predictable, repeatable results across a broad spectrum of industrial grinding operations.

Contact ZhenAn International Co., Limited
WhatsApp: +86 15518824805
Email: market@zanewmetal.com
ZhenAn International Co., Limited - 30 Years of Ferroalloy Experience | Website: www.metal-alloy.com

Core Selling Points

Self-Sharpening Grain Structure: Conchoidal fracture exposes new cutting edges, maintaining aggressive cut rates longer than fused alumina abrasives.
Superior Hardness: Mohs hardness 9.2+ enables efficient grinding of tungsten carbide, high-speed steel, titanium, and ceramics.
Low Heat Generation: High thermal conductivity dissipates grinding heat rapidly, reducing workpiece burn and metallurgical damage.
Chemically Inert: Resists attack by most acids and alkalis, suitable for wet grinding and chemical-processing environments.
Proven Supply Chain: Sourced through ZhenAn International Co., Limited with batch-tested consistency and export-ready documentation.

Technical Parameters

Industry-typical specifications for abrasive-grade black SiC. Confirm current stock availability and exact assay before ordering.

Property	Typical Value / Range
SiC Content	≥ 98% (abrasive grade)
Color	Black
Grain Shape	Angular, sharp-edged
Mohs Hardness	9.2–9.5
Specific Gravity	3.15–3.20 g/cm³
Standard Grains	F12, F16, F24, F36, F46, F60, F80, F120, F150, F180, F220
Micro-Powders	240# to 3000#

Note: Commonly stocked SiC grades include 88%, 90%, 92%, 95%, and 98%. Specialty grades for semiconductor or ceramic bonding may be available on request.

Application Scenarios

Precision Grinding of Hard Alloys: Black SiC grinding wheels achieve dimensional tolerances within microns on tungsten carbide cutting tools, cobalt-chrome medical implants, and hardened bearing steels. The sharp grain penetration minimizes plowing and sliding, reducing subsurface damage.

Glass and Stone Processing: In the flat glass, optical lens, and natural stone industries, black SiC abrasive belts and discs provide uniform scratch patterns essential for subsequent polishing stages. Water-cooled SiC grinding prevents edge chipping on tempered glass and crystalline quartz.

Automotive and Aerospace Component Finishing: Turbine blades, brake rotors, and transmission gears often require intermediate grinding between machining and final honing. Black SiC's consistent grain size distribution ensures predictable surface roughness (Ra) values, critical for fatigue-resistant aerospace components.

Coated Abrasive Products: Resin-bonded sanding discs, waterproof sandpaper, and flap wheels rely on black SiC for aggressive material removal on composites, fiberglass, and non-ferrous metals. The friable grain structure adapts to contoured surfaces without loading or glazing.

Refractory Lining and Kiln Shelf Preparation: Coarse black SiC grit is used to texture refractory castable surfaces, improving mechanical interlock between lining layers. Fine SiC powders serve as slip-casting media for producing dense, oxidation-resistant kiln furniture.

Product Delivery

Form: Loose angular grains, classified by mesh size per FEPA or JIS standards.

Packaging: 25 kg or 50 kg laminated woven bags with moisture barrier; 1,000 kg bulk bags for large-volume orders. Special anti-caking agents available for humid climates.

Quality Documentation: Each lot includes sieve analysis report, chemical assay (SiC, C, Fe, Si free), and MSDS. Third-party SGS or Bureau Veritas inspection can be arranged at buyer's cost.

Shipping: FOB Chinese port or CIF destination as negotiated. Standard export packing on heat-treated wooden pallets suitable for container stuffing.

Frequently Asked Questions

How does black SiC compare to aluminum oxide for grinding steel?

Black SiC is harder and sharper than fused aluminum oxide, making it more effective on hard, brittle, or non-ferrous materials. For soft carbon steels, aluminum oxide may offer better economy; for hard alloys, ceramics, and glass, black SiC is superior.

What mesh size should I select for my grinding wheel formulation?

Coarse grains (F12–F36) are used for heavy stock removal and rough grinding. Medium grains (F46–F120) suit general-purpose precision grinding. Fine grains (F150–F220 and micro-powders) are used for honing, lapping, and surface finishing. Wheel hardness and bond type also influence grain selection.

Can black SiC be used in wet grinding operations?

Yes. Black SiC is chemically stable in water and most aqueous coolants. Wet grinding with SiC improves surface finish, extends wheel life, and suppresses dust generation.

Do you supply bonded or coated abrasive finished products?

We specialize in raw abrasive grains. For finished grinding wheels or sanding discs, we can refer you to qualified converter partners in our network.

What is the minimum order quantity?

Minimum order quantities vary by grade and mesh size. Typically, 1 metric ton per size is the threshold for competitive pricing. Contact us for a detailed quote based on your annual consumption.

Request a Grinding Abrasive Quote

Whether you formulate bonded wheels, produce coated abrasives, or operate precision grinding shops, ZhenAn International Co., Limited supplies abrasive black SiC silicon carbide that meets your performance and consistency requirements.

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