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SILICON CARBIDE(SIC)

2025-01-20
Silicon carbide (SiC), also known as carborundum, is a hard chemical compound containing silicon and carbon. They are widely used for abrasives, refractory, metallurgy, and SiC wafer, etc. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics that are widely used in applications requiring high endurance, such as car brakes, car clutches and ceramic plates in bulletproof vests. The result of this high temperature process is the crystalline formation of Silicon Carbide grains, of both Green and Black coloring. The color difference is due to the purity of the silicon carbide, green SiC being higher purity due to its closer proximity to the heat source ofthe furnace.

Product Description

ITEM

SIC

Fe2O3

Al2O3

Free Carbon

Moisture

Size(mm)

HQ-SIC-01

90% min

1.5% max

1.5% max

3.5% max

0.5% max

1-5/1-10

HQ-SIC-02

90% min

1.5% max

1.5% max

3.5% max

0.5% max

0-10

HQ-SIC-03

88% min

1.5% max

1.5% max

3.5% max

0.5% max

0-1/1-10

HQ-SIC-04

98% min

0.6% max

0.6% max

0.2% max

0.5% max

0-1/1-3

HQ-SIC-05

70% min

2% max

1% max

10% max

0.5% max

1-10

Special particle size can be customized according to your requirement.


Silicon carbide is a new kind of reinforced steelmaking deoxidizing agent and ideal thermal insulating agent. It is used for deoxidizing. The usage dose is 1-4kg/t can make electricity consumption to reduce 15-20kw/h and time to reduce 15-20min per furnace to raise productivity rate to 8-10%.
Applications
1. Silicon carbide can be used as metallurgical deoxidizer and high temperature resistant materials in smelting.
2. It can also be used as abrasive materials,which can be used to make abrasive tools,such as sand paper, abrasive cloth, grinding wheels, oilstones and so on.
3. For refractory material in ceramic production.

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Green silicon carbide is a high-quality abrasive material made from silicon carbide grains and petroleum coke in an electric resistance furnace at high temperatures. 
Its unique crystal structure gives it high toughness, durability, and resistance to wear and tear. Green silicon carbide is widely used in the manufacturing of grinding wheels, cutting tools, and abrasive blasting media.
Green silicon carbide is also used in various industrial applications such as surface preparation, metalworking, and ceramics manufacturing. Its properties make it an excellent choice for use in high-temperature applications, such as furnace linings, refractories, and heating elements.

Composition

 

 

 

 

 

Sintering Additives

 

Binder Content

Moisture Content

 

Carbon

Boron

%

%

Ready to Press 13 m²/G

Carbon Black

Boron Carbide

Approx. 4.8

Approx. 0.6

Ready to Press 15 m²/G

Resin

 

Approx. 9.5

Approx 0.6


Typical Physical Properties

 

Granule Size

Bulk Density

Flowability "Hall"

Appearance

Green Density

 

Max

Average

g/cm³

Sec/25gr

 

125 MPa

175 MPa

225 MPa

Ready to Press 13 m²/G

250 µm

100 µm

0.75

55

Dark Color

1.82 g/cm³

1.85 g/cm³

1.89 g/cm³

Ready to Press 15 m²/G

250 µm

100 µm

0.78

50

Light Color

1.82 g/cm³

1.85 g/cm³

1.89 g/cm³


Typical Physical Properties of Sintered Parts

 

Denisty

Microhardness HV 100

Indentation Fracture Toughness

Linear Shrinkage

Bending Strength

g/cm³

GPa

MPa

%

4 Point MPa

Ready to Press 13 m²/G

3.13

25

3.5

Approx. ~ 16

380

Ready to Press 15 m²/G

3.17

26

4.0

Approx. ~ 18

450