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Black Silicon Carbide

Black silicon carbide is produced at high temperature in an electric resistance type furnace with quartz sand and petroleum coke as its main raw materials. Its hardness is between fused alumina and synthetic diamond. Mechanical intensity of it is higher than fused alumina. It is brittle and sharp and sharp and heat conductivity in some degree. The abrasive made of it are suitable for working on cast iron, non-ferrous metal, rock, leather, rubber, etc It is also broadly used as refractory material and metallurgical additive. 

 

Reference Chemical Composition (weight%) of silicon carbide of non-abrasives application

Type

Reference Chemical Composition (weight %)

Grit Size

SiC(min)

F.C(max)

Fe2O3(max)

TN98

98.00

1.00

0.80

0-1mm, 1-3mm, 3-5mm, 5-8mm, 150#F, 200#F, 325#F

For customer’s

TN97

97.00

1.50

1.00

TN95

95.00

2.50

1.50

TN90

90.00

3.00

2.50

TN88

88.00

3.50

3.00

TN85

85.00

5.00

3.50

TN70

70.00

10.00

3.50

TN60

60.00

12.00

3.50

TN50

50.00

15.00

3.50

Black Silicon Carbide Content for Concretion Grinder

Brand

Grit Size

Chemical Composition(%)

SIC(min)

F.C(max)

Fe2O3(max)

Black

silicon carbide

F12-F90

98.5

0.20

0.60

F100-F150

98.5

0.30

0.80

F180-F220

97.0

0.30

1.20

Black Silicon Carbide Content for Coating Grinder

Brand

Grit Size

Chemical Composition(%)

SIC(min)

F.C(max)

Fe2O3(max)

C-P

P12-P100

98.0

0.25

0.70

P120-P150

97.5

0.35

0.90

P180-P220

96.0

0.35

1.35

Green Silicon Carbide

Green silicon carbide is produced basically in the same way of black silicon carbide except the different requirement of raw material. With higher purity of crystallization and hardness, when abrasive tools as of it, they are suitable of processing hard and brittle materials such as: hard alloy, titanium alloy, bearing steel as well as some non-metallic material including: glass, agate, electrical ceramic, quartz products, rock. Green silicon carbide also used as higher-grade refractory materials, electrical heating element and elements for electrical appliances.  

Chemical Index of Green Silicon Carbide for Concretion Grinder

Brand

Grit Size

Chemical Composition(%)

SIC(min)

F.C(max)

Fe2O3(max)

GC

F12-F90

99.0

0.20

0.20

F100-F150

98.5

0.25

0.50

F180-F220

97.5

0.25

0.70

W63-W20

97.0

0.30

0.70

W14-W10

95.5

0.40

0.70

W7-W5

94.0

0.50

0.70

Chemical Index of Green Silicon Carbide for Coating Grinder

Brand

Grit Size

Chemical Composition(%)

SIC(min)

F.C(max)

Fe2O3(max)

C-P

P12-P100

98.5

0.25

0.25

P120-P150

98.0

0.30

0.55

P180-P220

97.0

0.30

0.80

P240-P1000

96.5

0.35

0.80

P1200

94.5

0.45

0.80

　

 

 

　

　

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