SiC / Silicon Carbide
A compound of silicon and carbon with high-temperature stability and strong wear resistance. Supplied in five product groups — Green SiC micro powder, Black SiC micro powder, Grain/Grit (#4–#240), ceramic grade, and refractory grade — with particle size and packaging agreed to suit the customer's process.
Overview
Silicon carbide (SiC)
A high-performance ceramic material with high hardness, heat resistance and wear resistance.
Silicon carbide (SiC) is a compound of silicon and carbon. Its properties — high-temperature stability and strong wear resistance among them — have brought it attention across many industries. We review abrasive, ceramic, coating, refractory, and precision material grades against the customer's process conditions.
SiC is used as a functional material to solve problems of “wear, heat, and surface hardness” in metal, glass, ceramic, polymer, and refractory processes.
Positioning
Four characteristics
Cutting power and surface machinability in grinding, cutting, and polishing processes
Suited to friction and wear environments in coatings, composites, and ceramic components
Raw material for high-temperature furnaces, refractories, and high-temperature components
Specifications such as mesh or micron can be reviewed to match the customer's process
Lineup
Main product groups
| Precision powder | Green SiC Micro Powder | Can be considered for precision grinding, polishing, ceramics, and functional coating materials. |
|---|---|---|
| General-purpose powder | Black SiC Micro Powder | Suited to high-volume processes such as abrasives, refractories, composites, and industrial coatings. |
| Grain | SiC Grain / Grit | Considered for grinding wheels, sandpaper, cutting materials, blasting, and refractory raw materials. |
| Ceramic grade | SiC Ceramic Material | Can be considered as a material for hot pressing, sintering, and the manufacture of structural ceramic components. |
| Refractory grade | Refractory Grade SiC | Can be considered as a material for refractory brick, castables, and high-temperature plant. |
Product 01
Green SiC Micro Powder
A silicon carbide micro powder whose high hardness and wear resistance suit precision surface treatment, electronic component processing, ceramic raw materials, and high-performance coating materials. Precise particle size · high hardness · surface machining.
| Precision grinding | Surface machining of glass, ceramics, metals, and electronic components |
|---|---|
| Polishing | Improving surface accuracy on high-hardness materials |
| Ceramic raw material | Manufacture of high-strength, high-heat-resistance components |
| Functional coatings | Improving wear resistance, surface hardness, and heat resistance |
| Semiconductor and electronic component processing | Component lapping and polishing / surface treatment material studies |
Product 02
Black SiC Micro Powder
Suited to processes that need a balance of cost and performance. Particle size and packaging can be agreed to match the intended use in abrasive, refractory, and composite applications.
| General abrasives | Grinding, cutting, surface treatment |
|---|---|
| Refractories | High-temperature furnaces, refractory brick, castables |
| Ceramics | Manufacture of wear-resistant and high-temperature components |
| Composites | Reinforcing the properties of rubber, plastics, and resins |
| Coatings | Adding wear and heat resistance |
Product 03
SiC Grain / Grit
Silicon carbide particles screened to a set size range. Applicable to grinding wheels, sandpaper, cutting materials, blasting, and refractory raw materials, with mesh or micron standards available on request. The smaller the grit number the coarser the particle, and the larger the number the finer (for example #40 → #100 → #240 becomes progressively finer).
| #4 ~ #24 | Coarse particle range | Cutting materials, blasting, high-temperature and refractory raw materials |
|---|---|---|
| #30 ~ #80 | Medium particle range | Grinding wheels, sandpaper, surface treatment |
| #90 ~ #150 | Fine particle range | Precision grinding, finishing |
| #180 ~ #240 | Very fine particle range | Precision surface treatment, fine abrasives |
Product 04
SiC Ceramic Material & Refractory Grade
Ceramic and refractory grade materials for high-temperature, abrasive, and corrosive environments.
High-performance ceramic fields including structural ceramics, hot pressing, pressureless sintering, reaction sintering, and wear-resistant components
High-temperature industrial materials including refractory brick, castables, furnace components, and applications in steel and non-ferrous metals
Wear-resistant components such as pumps, nozzles, seals, and liners / ceramic structural materials for high-temperature and corrosive environments / furnace linings, castables, and heat-resistant reinforcement / specification review according to forming and sintering conditions
Matching
Product matching by application industry
We review the product group together with particle size conditions according to the customer's process objective.
| Abrasives / cutting materials | SiC Grain, Black SiC, Green SiC | Cutting power, particle size distribution, particle strength, price |
|---|---|---|
| Precision polishing | Green SiC Micro Powder | D50/D90, fines, dispersibility, surface roughness |
| Ceramic components | Green/Black SiC, Ceramic Material | Purity, sinterability, particle size distribution, formability |
| Coatings / composites | SiC Micro Powder | Dispersibility, surface treatment, compatibility with resin and binder |
| Refractories / high-temperature materials | Refractory Grade SiC, Grain | Heat resistance, content, particle size, high-temperature stability |
| Semiconductor / electronics and batteries | Green SiC, Micro Powder | Impurities, particle size, process suitability, sample testing |
Applications
SiC applications
Used across industry on the strength of its high hardness, wear resistance, heat resistance, and chemical stability. Specific items by application are listed below.
01 Silicon carbide for automotive componentsBrake pads, brake discs for high-speed rail vehicles, (active) brake discs, DPF (automotive exhaust gas filters), steel mesh filters for engine casting, ceramic filters for oil removal, and other materials for automobiles and transport equipment.
02 Silicon carbide ceramic productsCeramic kiln furniture, wear plates, burner nozzles, burner nozzle sleeves, columns, square beams and similar products, 3D printing, shaft and bearing sleeves, mechanical seals, pipe linings, engine hot-section parts, ballistic plates and body armor, chips for microchannel reactors, ceramic substrates, semiconductor wafer boats, wafer carriers and more.
03 Silicon carbide for insulationFoamed ceramics, insulation materials, ceramic heat exchanger plates for the petrochemical field, and insulation plates for new-energy lithium-ion batteries.
04 Silicon carbide for filter materialsFlat-plate filters, tubular filters, rotary aluminum melt filters, foamed ceramics, and automotive exhaust gas filters.
05 Silicon carbide for paints and coatingsNon-stick coatings, corrosion-resistant coatings, high-temperature-resistant coatings, anti-corrosion and heat-resistant coatings for glass and steel, and coatings for welding wire.
06 Silicon carbide for grinding and abrasionGrinding wheels, sandpaper, abrasive belts, oilstones, abrasive sheets, cutting sheets, sandblasting, gloss finishing and polishing of glass and stainless steel articles, abrasive blocks, gemstone drilling, processing chains, polishing heads, and silicon carbide abrasive components.
07 Silicon carbide for electronics, thermal conduction, and heat dissipationSilicon wafers, semiconductor heat sinks, ultraviolet detectors, and high-brightness LED substrates.
08 Silicon carbide for refractoriesNon-porous cement, continuous casting tundishes, slide gates, deoxidizers, silicon carbide crucibles, graphite crucibles, silicon carbide brick, silicon carbide shelf plates, and various other silicon carbide ceramic products. Manufactured by pressureless sintering, reaction sintering, and recrystallization.
09 Silicon carbide for surface treatmentMachining of mobile phone back covers, surface treatment of consumer electronics components, and glass thinning and polishing.
10 For functional materials and additives and fillersAdhesives, rubber, shoe soles, geotextile additives, defoamers, epoxy resins, nylon additives, and applications in heat dissipation, thermal conduction, and high-temperature resistance.
11 Silicon carbide for aluminum matrix compositesApplied to aircraft structures, satellite support structures, arrow and missile propulsion components, engine pistons, brake discs, drive shafts, connecting rods, armored vehicle protection plates, missile skins, lightweight weapon components and more.
Data Sheet
SiC particle size composition (GB2477-83) — 4# to 240#
Sizes beyond those published in this table can also be supplied.
Terms used in the table
- Oversize grain — the maximum share by weight that particles coarser than the standard may occupy
- Basic grain — the central particle range that represents the product
- Mixed grain — the usable main size range, including the bands adjacent to the basic grain
- Fine grain — the limit on the content of excessively fine particles
| Grit | 100% pass sieve no. | Oversize sieve no. | Oversize retained (%) | Basic grain sieve no. | Basic grain retained (%) | Mixed grain sieve no. | Mixed grain retained (%) | Sieve no. passing under 3% fines |
|---|---|---|---|---|---|---|---|---|
| 4# | 5/16 | 3.5 | 20 | 4 | 40 | 4 5 | 70 | 6 |
| 5# | 0.265 | 4 | 20 | 5 | 40 | 5 6 | 70 | 7 |
| 6# | 3.5 | 5 | 20 | 6 | 40 | 6 7 | 70 | 8 |
| 7# | 4 | 6 | 20 | 7 | 40 | 7 8 | 70 | 10 |
| 8# | 5 | 7 | 20 | 8 | 45 | 8 10 | 70 | 12 |
| 10# | 6 | 8 | 20 | 10 | 45 | 10 12 | 70 | 14 |
| 12# | 7 | 10 | 20 | 12 | 45 | 12 14 | 70 | 16 |
| 14# | 8 | 12 | 20 | 14 | 45 | 14 16 | 70 | 18 |
| 16# | 10 | 14 | 20 | 16 | 45 | 16 18 | 70 | 20 |
| 20# | 12 | 16 | 20 | 18 | 45 | 18 20 | 70 | 25 |
| 22# | 14 | 18 | 20 | 20 | 45 | 20 25 | 70 | 30 |
| 24# | 16 | 20 | 25 | 25 | 45 | 25 30 | 65 | 35 |
| 30# | 18 | 25 | 25 | 30 | 45 | 30 35 | 65 | 40 |
| 36# | 20 | 30 | 25 | 35 | 45 | 35 40 | 65 | 45 |
| 40# | 25 | 35 | 30 | 40 | 40 | 40 45 | 65 | 50 |
| 46# | 30 | 40 | 30 | 45 | 40 | 45 50 | 65 | 60 |
| 54# | 35 | 45 | 30 | 50 | 40 | 50 60 | 65 | 70 |
| 60# | 40 | 50 | 30 | 60 | 40 | 60 70 | 65 | 80 |
| 70# | 45 | 60 | 25 | 70 | 40 | 70 80 | 65 | 100 |
| 80# | 50 | 70 | 25 | 80 | 40 | 80 100 | 65 | 120 |
| 90# | 60 | 80 | 20 | 100 | 40 | 100 120 | 65 | 140 |
| 100# | 70 | 100 | 20 | 120 | 40 | 120 140 | 65 | 200 |
| 120# | 80 | 120 | 20 | 140 | 40 | 140 170 | 65 | 230 |
| 150# | 100 | 140 | 15 | 170 200 | 40 | 170 200 230 | 65 | 325 |
| 180# | 120 | 170 | 15 | 200 230 | 40 | 200 230 270 | 65 | |
| 220# | 140 | 200 | 15 | 230 270 | 40 | 230 270 325 | 60 | |
| 240# | 170 | 200 | 5 | 230 270 | 8 | 230 270 325 | 38 |
Downloads
Related downloads
- PDF[GHT 2026] SiC / Silicon Carbide Lineup Particle Size ChartDownload ↓
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