Black Silicon Carbide

Short Description:

Other Names: Black SiC/Carborundum Powder/Emery Powder
Color: Black
Shape: Shape/Grit
Material: Silicon Carbide (SiC)
SiC: 90%-99.5%
Refractoriness: ＞2000℃
Model Number: 0-1mm 1-3mm 3-5mm 5-8mm 100mesh 200mesh 325mesh 
Hardness: 9.2 Mohs
Bulk Density: 3.15-3.3 g/cm3
Thermal Conductivity: 71-130 W/m.K
Working Temperature: 1900℃
Application: Refractory Material
Package: 25KG/1000KG Bag

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Product Detail

Product Tags

Product Information

Black Silicon Carbide(SiC) is an extremely hard (Mohs 9.1/ 2550 Knoop) man made mineral that possesses high thermal conductivity and high strength at elevated temperatures (at 1000°C, SiC is 7.5 times stronger than Al203 ). SiC has a modulus of elasticity of 410 GPa, with no decrease in strength up to 1600°C, and it does not melt at normal pressures but instead dissociates at 2600°C.

Properties: High hardness; Excellent wear resistance; High melting point; High temperature resistance; Excellent thermal conductivity; Good chemical stability; Good optical properties

Materials: Quartz sand, petroleum coke, silica quartz sand, petroleum coke (or coal coke), wood chips (salt needs to be added when producing green silicon carbide) and other raw materials.

Particle Size: 0-1mm,1-3mm, 3-5mm, 5-8mm, 6-10mm, 10-18mm, 200mesh, 325mesh, #60, #80, #100, #120, #180, #220, #240...Other special spec could be supplied as required.

Applications:

Black silicon carbide blocks are often used in applications that require cutting, processing or grinding, such as preparing grinding wheels, cutting discs, etc.

The size of black silicon carbide grit generally ranges from a few millimeters to tens of microns. Commonly used in sandblasting, polishing, surface treatment and other applications to provide uniform abrasive and clean surfaces.

The particle size of black silicon carbide powder is generally in the nanometer to micron level. Powdered products are commonly used in material reinforcement, coatings, fillers and other applications.

Black Silicon Carbide Lump/Block

Black Silicon Carbide Grit

Black Silicon Carbide Powder

Grit Size Comparison Chart

Grit No.	China GB2477-83	Japan JISR 6001-87	U.S.A ANSI(76)	欧洲磨料协FEPA(84)	国际ISO(86)
4	5600-4750		5600-4750	5600-4750	5600-4750
5	4750-4000		4750-4000	4750-4000	4750-4000
6	4000-3350		4000-3350	4000-3350	4000-3350
7	3350-2800		3350-2800	3350-2800	3350-2800
8	2800-2360	2800-2360	2800-2360	2800-2360	2800-2360
10	2360-2000	2360-2000	2360-2000	2360-2000	2360-2000
12	2000-1700	2000-1700	2000-1700	2000-1700	2000-1700
14	1700-1400	1700-1400	1700-1400	1700-1400	1700-1400
16	1400-1180	1400-1180	1400-1180	1400-1180	1400-1180
20	1180-1000	1180-1100	1180-1000	1180-1000	1180-1000
22	1000-850	-	-	1000-850	1000-850
24	850-710	850-710	850-710	850-710	850-710
30	710-600	710-600	710-600	710-600	710-600
36	600-500	600-500	600-500	600-500	600-500
40	500-425	-	-	500-425	500-425
46	425-355	425-355	425-355	425-355	425-355
54	355-300	355-300	355-297	355-300	355-300
60	300-250	300-250	297-250	300-250	300-250
70	250-212	250-212	250-212	250-212	250-212
80	212-180	212-180	212-180	212-180	212-180
90	180-150	180-150	180-150	180-150	180-150
100	150-125	150-125	150-125	150-125	150-125
120	125-106	125-106	125-106	125-106	125-106
150	106-75	106-75	106-75	106-75	106-75
180	90-63	90-63	90-63	90-63	90-63
220	75-53	75-53	75-53	75-53	75-53
240	75-53	-	75-53	-

Details Images

Product Index

Grit Size	Chemical Composition% (By Weight)
Grit Size	SIC	F·C	Fe2O3
12#-90#	≥98.50	≤0.20	≤0.60
100#-180#	≥98.00	≤0.30	≤0.80
220#-240#	≥97.00	≤0.30	≤1.20
W63-W20	≥96.00	≤0.40	≤1.50
W14-W5	≥93.00	≤0.40	≤1.70

Application

Abrasives and Grinding Tools‌: Due to its high hardness and certain toughness, black silicon carbide sand is widely used in the grinding and polishing of optical glass, cemented carbide, titanium alloy, bearing steel, and sharpening of high-speed steel tools. It is also suitable for cutting and grinding materials with low tensile strength, such as slicing of single crystal silicon and polycrystalline silicon rods, grinding of single crystal silicon wafers, etc. ‌

Refractory Materials‌: In the metallurgical industry, black silicon carbide sand is often used as the lining, bottom and patch of high-temperature furnaces to ensure the normal operation of metallurgical equipment. It is also made into refractory materials, such as high-temperature furnace components and supports, which are resistant to thermal shock, small in size, light in weight and high in strength, and have good energy-saving effects. ‌

Chemical Uses‌: In the chemical industry, black silicon carbide sand is used to manufacture corrosion-resistant chemical equipment, pipelines and valves to ensure the safe operation of equipment under corrosive media and high temperature conditions. In addition, it can also be used as a purifier for smelting steel, that is, a deoxidizer for steelmaking and a cast iron structure improver. ‌ ‌

Electronics Industry‌: In the electronics industry, black silicon carbide sand is used to manufacture semiconductor materials and electronic components, such as high-power electronic devices, integrated circuit substrates, etc., to ensure the high performance and stability of electronic equipment. ‌ ‌

Other Uses‌: Black silicon carbide sand is also used to make functional ceramics, electric heating elements, high-temperature semiconductor materials, far-infrared boards, lightning arrester valve materials, etc. It is also used to make non-stick pan coatings, wear-resistant coatings, anti-corrosion coatings, etc.

Sandblasting

Sandpaper

Grinding

Polishing

Grinding Wheel

Ceramic Tube

Stainless Steel

Electronic Industry

Package&Warehouse

Package	25KG Bag	1000KG Bag
Quantity	24-25 Tons	24 Tons

Company Profile

Shandong Robert New Material Co., Ltd. is located in Zibo City, Shandong Province, China, which is a refractory material production base. We are a modern enterprise that integrates the research and development, production, sales, kiln design and construction, technology, and export refractory materials. We have complete equipment, advanced technology, strong technical strength, excellent product quality, and good reputation. Our factory covers over 200 acres and an annual output of shaped refractory materials is approximately 30000 tons and unshaped refractory materials is 12000 tons.

Our main products of refractory materials include: alkaline refractory materials; aluminum silicon refractory materials; unshaped refractory materials; insulation thermal refractory materials; special refractory materials; functional refractory materials for continuous casting systems.

Robert`s products are widely used in high-temperature kilns such as non-ferrous metals, steel, building materials and construction, chemical, electric power, waste incineration, and hazardous waste treatment. They are also used in steel and iron systems such as ladles, EAF, blast furnaces, converters, coke ovens, hot blast furnaces; non-ferrous metallurgical kilns such as reverberators, reduction furnaces, blast furnaces, and rotary kilns; building materials industrial kilns such as glass kilns, cement kilns, and ceramic kilns; other kilns such as boilers, waste incinerators, roasting furnace, which have achieved good results in using. Our products are exported to Southeast Asia, Central Asia, Middle East, Africa, Europe, Americas and other countries, and has established a good cooperation foundation with multiple well-known steel enterprises. All employees of Robert sincerely look forward to working with you for a win-win situation.

Frequently Asked Questions

Need help? Be sure to visit our support forums for answers to your questions!

Are you a manufacturer or a trader?

We are a real manufacturer, our factory is specialized in producing refractory materials for more than 30 years. We promise to provide the best price, the best pre-sale and after-sale service.

How do you control your quality?

For each production process, RBT has a complete QC system for chemical composition and physical properties. And we will test the goods, and the quality certificate will be shipped with the goods. If you have special requirements, we will try our best to accommodate them.

What is your delivery time?

Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.

Do you provide free samples?

Of course, we provide free samples.

Can we visit your company?

Yes, of course, you are welcome to visit RBT company and our products.

What is the MOQ for trial order?

There is no limit, we can provide the best suggestion and solution according to your situation.

Why choose us?

We have been making refractory materials for more than 30 years, we have strong technical support and rich experience, we can help customers design different kilns and provide one-stop service.

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Black SiC