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Black Silicon Carbide #280 Grit – Precision Abrasive for Intermediate Grinding & Finishing

Black Silicon Carbide #280 Grit – Precision Abrasive for Intermediate Grinding & Finishing

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Black Silicon Carbide #280 Grit – Precision Abrasive for Intermediate Grinding & Finishing

Premium Performance for Demanding Applications

Black Silicon Carbide #280 grit represents the perfect balance between material removal and surface refinement. This medium-fine abrasive delivers exceptional results in precision grinding, finishing, and preparation for final polishing stages. With its superior hardness and consistent particle size, our SiC #280 is engineered for professionals who demand controlled aggressiveness with refined results.

Technical Specifications & Key Benefits

✔ Precise Grit Size (#280 / 46-58μm) – Ideal for intermediate smoothing operations
✔ Exceptional Hardness (9.5 Mohs) – 30% harder than aluminum oxide alternatives
✔ Angular Grain Structure – Maintains sharp cutting edges throughout use
✔ Thermal Conductivity – Reduces heat buildup during processing
✔ Chemical Stability – Suitable for wet or dry applications

Optimal Applications

Metal Fabrication & Finishing

  • Pre-polish preparation for stainless steel components

  • Deburring precision machined parts

  • Surface conditioning before electroplating

  • Aerospace component finishing

Stone & Glass Working

  • Intermediate polishing of granite and marble

  • Lapidary work on hard gemstones

  • Glass edge refinement

  • Terrazzo surface preparation

Specialized Industrial Uses

  • Composite material finishing

  • Ceramic component processing

  • Refractory material shaping

  • Automotive restoration work

Available Product Forms

  • Loose abrasive powder for manual applications

  • Bonded abrasives (wheels, sticks, blocks)

  • Coated abrasives (belts, discs, sheets)

  • Slurry formulations for machine processing

Competitive Advantages

• Faster cutting action than comparable alumina products
• More consistent results than standard silicon carbide
• Lower consumption rates due to enhanced durability
• Reduced loading in bonded applications

Quality Assurance

✓ Laser particle size analysis for each batch
✓ Magnetic separation to remove metallic impurities
✓ ISO 9001 certified manufacturing process
✓ Custom gradations available

Ordering Options & Support

Available in 1kg, 5kg, 25kg, and bulk packaging with flexible shipping solutions. Our technical team provides:
• Application recommendations
• Process optimization guidance
• Custom formulation services

Request your free sample today to experience the Black SiC #280 difference in your production process.

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+8618039337725

Address

Room 1903, Yaxing Times Plaza, Songshan South Road, Zhengzhou, China

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Related Blog

The applications of Black silicon carbide powder?

Black silicon carbide powder is produced by smelting quartz sand and petroleum coke inside high‑temperature resistance furnaces. Featuring Mohs hardness of 9.2, good thermal conductivity, moderate electrical conductivity, excellent wear resistance and great chemical stability against acids and alkalis, this cost‑effective SiC material serves numerous industrial sectors across abrasive processing, thermal management, refractory metallurgy and advanced composite manufacturing.
Its most traditional and largest‑volume application lies in the abrasive and surface‑treatment industry. Graded black silicon carbide grits and micro‑powders are widely made into grinding wheels, abrasive belts, sandpapers and polishing pastes. It performs outstandingly for grinding cast iron, non‑ferrous metals such as aluminum, copper and brass, stone, marble, glass and low‑tensile‑strength non‑metallic workpieces. In sandblasting and water‑jet cutting operations, sharp‑edged black SiC particles efficiently remove rust, oxide scale, burrs and old coatings, achieving uniform matte surface finishing for machinery parts, casting components and hardware workpieces.

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