Green silicon carbide for making grinding wheel

Green Silicon Carbide also known as Green Carborundum is an extremely hard (Knoop 2600 or Mohs 9.2, microhardness 2940-3320) man made mineral that possesses high thermal conductivity (100 W/m-K). It also has high strength at elevated temperatures (at 1000°C, Green SiC is 7.5 times stronger than Al2O3). Among abrasives, silicon carbide’s hardness is higher than corundum, and ranked below diamond, cubic boron nitride and boron carbide. Density generally viewed is 3.20-3.25g/cm3, bulk density is 1.2-1.6g/cm3.

▼Usage:
●The main use of grit size sand
As the abrasive, it is suitable for grinding carbide, hard and brittle metal and non-metallic materials, e.g. copper, brass, aluminum and magnesium metals, gems, optical glass, ceramics and other non-metallic materials.
Mainly used for glass polishing, crystal grinding, solar and semiconductor wafer wire sawing, ceramic polishing, as well as precision grinding wheel manufacturing, plastic products, etc.
●The use of green silicon carbide powder

Polish machine parts, metal products, cylinder, piston ring, pump, nozzles, bearings, roller ball and precision measuring instruments and polishing glass lenses, prisms, flat polished crystal and other products.

Silicon carbide powder is also widely used in refractory, wear-resistant floors, ceramic foam, special coatings, corrosion-resistant paint, flow separation and environmental protection industries.

Chemical Analysis

Purpose

Specification

Chemical Composition (%)

Magnetic material content(%)max

Abrasives grade

SIC min

F.C max

Fe2O3 max

F

12-80

99

0.20

0.2

0.0180

90-150

98.5

0.25

0.5

0.0150

180-220

97.5

0.25

0.7

0.0120

240-1200

96

0.30

0.8

Refractory grade

Section sand

0-1mm

1-3mm

3-5mm

5-8mm

99

0.35

0.7

Fine Powder

-180mesh

-200mesh

-240mesh

-320mesh

98

0.35

0.7

Physical Properties

Crystal Form

Alpha SiC hexagonal system

Chemical nature

Slight acid

Reaction with acids

Very slight surface action with hydrofluoric acid

Reaction with Alkalis

Attacked at high temperature by alkalis and iron oxide

Oxidation-reduction effects  

Starts to oxide slowly at 800°C. No reduction

True Density (g/cm3)

3.20-3.25

Hardness  

Knoop (kg/cm2)

2500-2900

Moh’s

9.2

Color

Green

Color after firing

Green

Decomposition point

2600°C

Max Usable temperature

1900°C  in air

Specific heat (cal/g.oC )

0°C

500°C

1000°C

0.14

0.28

0.13

Coefficient of thermal conductivity (cal/cm2.sec.oC)

600°C

800oC

1000°C

0.080

0.061

0.051

Electrical resistivity(Wcm)

25°C

100°C

400°C

800°C

1400°C

50

46.4

26.6

7.8

0.65

Coefficient of liner expansion (x10-6)

25°C -500°C

25°C -1000°C

25°C-1500°C

25°C-2000°C

25°C-2500°C

4.63

5.12

5.48

5.77

5.94

All data based upon Runlong Enterprise standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.

Super hardness green silicon carbide for making grinding wheel with unit price [USD1350~2900/Ton FOB Tianjin] from China SiC manufacturer.


Packing:
Jumbo Bag of 1 Ton, 1.2 Tons or 1.3 Tons
25kg Woven Plastic Bag, 40 Bags in a jumbo Bag
25kg Woven Plastic Bags, 40 Bags on a Wood Pallet
25kg Paper Bag, 40 Bags on a Wood Pallet

Other package also could supply as request.

 

▼Our Advantages:
a. Assure the high quality of products.
b. Equipped full line of test method. The laboratory is certified by government Inspection Bureau, that assures its quality stability.
c. All products will be supplied according to customers different requirements.
d. One-stop service
e. A grade products with high purity
f. Professional abrasives manufacturer since 1999
g. Production capacity:1000-1500 metric ton/month
▼Payment:
1).Our first choice is T/T. For a large order 40% T/T in advance is earnest money, the rest to be paid in 7-10 days after getting B/L copy. For a small order,100% T/T in advance.
2).Second choice is L/C. We can accept irrevocable L/C at sight. For a large order 40%T/T, 60%L/C. We couldn’t accept L/C for a small order. The best way of payment we advise is T/T, because L/C is very complicated and a lot of extra fee to give the bank.
3).The others: West Union, Paypal.
▼After Sales Service:
1).We are very glad that customer give us some suggestion for price and products.
2).If any question, please let us know it by E-mail or Telephone at the first time. We can deal with them for you in time.
▼Factory Visit:
1).Welcome any customer to visit our factory directly
2).If customer have any scheduling in China, please let us know. We would like to help you book the hotel and pick up you from airport or railway station.

Green Silicon Carbide Tags:
Send your inquiry now!