Silicon carbide powder GC F180#

Silicon carbide powder GC F180#
Model:F180
Brand:HAIXU ABRSIVES
Origin:Made In China
Category:Industrial Supplies / Tools / Abrasives
Label:Silicon carbide powd , GC F180 powder
Price: US $2715 / Ton
Min. Order:1 Ton
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Product Description

Silicon carbide powder GC F180#

Green silicon carbide grit is a very hard abrasive material . The hardness of it only ranks after diamond and B4C, and it is harder than black silicon carbide. So it is suitable to grinding large range of hard material such as titanium alloy, marble, carbide alloy, optical glasses, ceramics, etc.

Green Silicon Carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke. The SiC purity of green silicon carbide is up to 99%min. It is an artificial brittle SiC with high thermal conductivity and high strength which get no decrease in 1000 centigrade.

 

Typical physical properties of Green silicon carbide grit

Mohs Hardness:

9.5

Vickers Hardness:

3100-3400kg/mm2

Specific Gravity:

3.2g/cm3

Bulk density(LPD):

1.2-1.6 g/cm3

Color:

Green

Particle shape:

Hexagonal

Melting Point:

Dissociated at about 2600 centigrade

Maximum service temperature:

1900centigrade

Friability

Friable

Thermal conductivity

0.013 cal/cm2.sec (900°C)

Thermal expansion coefficient

7-9 x10-6 /(0-1600°C)

 

 

Chemical analysis of Green silicon carbide grit

TYPICAL CHEMICAL ANALYSIS

Chemical Content

F20-F220

F230-F2000

SiC

Min 99%

Min 98.5%

SiO2

Max 0.50%

Max 0.70%

F,Si

Max 0.20%

Max 0.40%

Fe2O3

Max 0.10%

Max 0.15%

F.C

Max 0.20%

Max 0.30%

L.O.I

Max 0.05%

Max 0.09%

 

Product Feature of Green silicon carbide grit

 

  1. Extremely high hardness (Mohs 9.5, Vickers 3100-3400kg/mm2) with high wear-resistance ability. The hardness of SiC decrease with the increasing of temperature. But still, even at the temperature of 1200°C, the hardness of green SiC is about twice that of fused alumina’s.
  2. Excellent chemical resistance and oxidation resistance. When heated at high temperatures, silicon carbide only oxidizes on the surface, forming a silicon dioxide film. The film can protect the silicon carbide material from oxidation.As a result, even in 1600°C ,green SiC can maintain stability to most strong acids and alkalis.
  3. High Toughness.The toughness of silicon carbide abrasive refers to the difficulty of breaking under the action of external force. Taking F46 grit as an example, the toughness of carborundum tested by static pressure method is about 68-78%.Comparing with fused alumina, the mechanical strength of silicon carbide is higher. F120 for example, the compressive strength of silicon carbide is 186KN/cm2, and the compressive strength of corundum abrasive is 100KN/cm2.
  4. Excellent thermal shock resistance with low thermal expansion coefficient. At a temperature of 25-1400 °C, the average thermal expansion coefficient of silicon carbide is 4.4x10-6/°C, while the thermal expansion coefficient of fused alumina is 7-8x10-6/°C.
  5. High temperature resistance; high temperature strength. The melting point of green silicon carbide is 2600 °C, and the maximum operating temperature can reach 1900 °C. Applying silicon carbide to the inner wall of the engine can increase the life of the engine.
  6. High purity. The green silicon carbide grain from us is milling from A grade green SiC block. Then sieve to high consistency particles.

 

 

Applications of Green silicon carbide grit

 

  1. Precision polishing for hard optical glass such as camera lens.
  2. Abrasive blasting on hard metal materials such as titanium alloy, carbide alloy, etc.
  3. Polishing and grinding quartz glass.
  4. Grinding hard stone, marbles, granite, etc.
  5. Polishing PZT/ Piezoelectric ceramic.
  6. Blasting copper and copper alloy.
  7. Surface treatment on diamond tools.
  8. Wire sawing.
  9. Polishing jewelry such as diamond and cinnabar.
  10. Grinding other thin brittle material precise component.

 

Specification of Green silicon carbide grit

 

Grit

1

2

3

3 and 4

5

Q5max,%

W1,um

Q1,%

W2,um

Q2max,%

W3,um

Q3min,%

W4,um

Q3+Q4min,%

W5,um

F8

4000

0

2800

20

2360

45

2000

70

1700

3

F10

3350

0

2360

20

2000

45

1700

70

1400

3

F12

2800

0

2000

20

1700

45

1400

70

1180

3

F14

2360

0

1700

20

1400

45

1180

70

1000

3

F16

2000

0

1400

20

1180

45

1000

70

850

3

F20

1700

0

1180

20

1000

45

850

65

710

3

F24

1180

0

850

25

710

45

600

65

500

3

F30

1000

0

710

25

600

45

500

65

425

3

F36

850

0

600

25

500

45

425

65

355

3

F40

710

0

500

30

425

40

355

65

300

3

F46

600

0

425

30

355

40

300

65

250

3

F54

500

0

355

30

300

40

250

65

212

3

F60

425

0

300

30

250

40

212

65

180

3

F70

355

0

250

25

212

40

180

65

150

3

F80

300

0

212

25

180

40

150

65

125

3

F90

250

0

180

20

150

40

125

65

106

3

F100

212

0

150

20

125

40

106

65

90

3

F120

180

0

125

20

106

40

90

65

75

3

F150

150

0

106

15

90

40

75

65

63

3

F180

125

0

90

15

75

*

63

40

53

*

F220

106

0

75

15

63

*

53

40

45

*

 

FEPA Grit

ds50-value (μm)

F 230

53.0 ± 3

F 240

44.5 ± 2

F 280

36.5 ± 1.5

F 320

29.2 ± 1.5

F 360

22.8 ± 1.5

F 400

17.3 ± 1

F 500

12.8 ± 1

F 600

9.3 ± 1

F 800

6.5 ± 1

F 1000

4.5 ± 0.8

F 1200

3.0 ± 0.5

F 1500

2.0 ± 0.4

F 2000

1.2 ± 0.3

Contact:

Ms.Chen

Email: panchen@hxabrasive.com

Website: http://greensiliconcarbide.com

WhatsApp: 0086 13526538098

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Member Information

Zhengzhou Haixu Abrasives Co.,Ltd
Country/Region:He Nan - China
Business Nature:Manufacturer
Phone:13526538098
Contact:Pan Chen (Sales manager)
Last Online:24 Oct, 2023