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Black Emery Grain for Polishing Corundum Sand

Black Silicon Carbide is produced in a high temperature electric resistance-type furnace from a mixture of quartz sand and petroleum coke. The hardness of black silicon carbide is greater than fused alumina but less than synthetic diamond. Black silicon carbide’s mechancial intensity is greater than fused alumina, but brittle and sharp. Black silicon carbide has some electrical and heat conductivity.

$1,100.00$1,200.00 / MT

 Brief introduction of Black Silicon Carbide Powder

Black Silicon Carbide is produced in a high temperature electric resistance-type furnace from a mixture of quartz sand and petroleum coke. The hardness of black silicon carbide is greater than fused alumina but less than synthetic diamond. Black silicon carbide’s mechancial intensity is greater than fused alumina, but brittle and sharp. Black silicon carbide has some electrical and heat conductivity.

Abrasive Material SiC Silicon Carbide Sandblasting Black Emery Grain for Polishing Corundum Sand

 

Applications

Bonded abrasive tool

Coated abrasive tool

Reusable abrasive

Grinding,lapping & polishing medium

Resin/Ceramic grinding wheels & grinding media

Abrasive Material SiC Silicon Carbide Sandblasting Black Emery Grain for Polishing Corundum Sand

 

Typical Physical Properties

 

ColorBlack
Hardness9.2 mohs
Grain shapeAngular
Melting Point2100 C min
True density3.20-3.25g/cm3
Bulk density1.2-1.6g/cm3(depends on the size)

 

Typical Chemical Analysis

SIC98.50%
Fe0.08%
Fe2O30.13%

 

Typical Size

MICROGRITS
Grit designationMean grain size ds50-value in μm
F 23053.0 ± 3
F 24044.5 ± 2
F 28036.5 ± 1.5
F 32029.2 ± 1.5
F 36022.8 ± 1.5
F 40017.3 ± 1
F 50012.8 ± 1
F 6009.3 ± 1
F 8006.5 ± 1
F 10004.5 ± 0.8
F 12003.0 ± 0.5

 

P-microgrits sizes coated
Grit designationGrit designation
P24058.2±2
P28052.2±2
P32046.2±1.5
P36040.5±1.5
P40035.0±1.5
P50030.2±1
P60025.8±1
P80021.8±1
P100018.3±1
P120015.3±1
P150012.6±1
P200010.3±0.8
P25008.4±0.5

 

Packaging

Black Emery Grain for Polishing Corundum Sand -3-

Using Equipment

Abrasive Material SiC Silicon Carbide Sandblasting Black Emery Grain for Polishing Corundum Sand

Contact Us

Sales Manager:Cindy Xue

Mobile/Wechat/Whatsapp number +86-18039337725
Address:Room 1903, Yaxing Times Plaza, Erqi District, Zhengzhou City, Henan Province

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CONTACT US

Phone

+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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