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Silicon carbide

Name: Silicon carbide
SKU: 0

English name:Silicon carbide
CAS number:409-21-2
EINECS:206-991-8
Chemical formula:CSi
Molecular weight:40.1
Fusing point:2700 °C (lit.)
density:3.22 g/mL at 25 °C (lit.)
solubility:Soluble in molten sodium hydroxide, potassium hydroxide and in molten iron.
Water solubility:Insoluble in water.

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Description

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.

Standard

Grade	Chemical Compositions(%)
	SiC	FC	Fe2O3	Moisture
	Min	Max
SiC90	90.0	3.0	1.2	0.5
SiC88	88.0	4.0	1.5
SiC85	85.0	4.5	1.8
SiC80	80.0	5.0	3.0
SiC70	70.0	8.0	4.0

Size: 0-1mm; 0-3mm; 0-10mm; 1-10mm; etc
Packing: in 25kg bag or in 1mt big bag. etc
The specs size and packing can according to customer's requirement.

TYPICAL CHEMICAL ANALYSIS

Purpose	Specification		Chemical Composition(%)			Magnetic material content(%)max
Abrasives grade			SICmin	F.Cmax	Fe2O3max
	grain	12-80	98	0.20	0.6	0.0023
		90-150	97	0.30	0.8	0.0021
		180-220	97	0.30	1.2	0.0018
	micropowder	240-4000	96	0.35	1.35	-
Refractory grade	Group Size	0-1mm1-3mm3-5mm5-8mm	97	0.35	1.35	-
	Fine Powder	-180mesh-200mesh-240mesh-320mesh	97	0.35	1.35	-
color			Black
Hardness(mohs)			9.15
Melting point(ºC)			2250
Maximum service temperature(ºC)			1900
Ture density(g/cm3)			3.9

PHYSICAL PROPERTIE

Color	Black
Shape	Angular
Crystal Form	Alpha silicon carbide in hexagonal system
Specific Gravity	3.92
Hardness	2750 kg/mm, 9.2 Mohs scale
Magnetic Material	0.0065%

BULK DENSITY

Grit(F)	g/cm3	Grit(F)	g/cm3	Grit(F)	g/cm3	Grit(F)	g/cm3
12	1.56	30	1.54	60	1.52	120	1.44
14	1.56	36	1.54	70	1.50	150	1.42
16	1.56	40	1.54	80	1.48	180	1.39
20	1.55	46	1.54	90	1.47	220	1.38
24	1.55	50	1.54	100	1.46

GRAIN SIZES AVAILABLE (F)

12, 14, 16, 20, 22, 24, 30, 36, 40, 46, 54, 60, 70, 80, 90, 100, 120, 150, 180, 220.FEPA STANDARD Grain Size

Size	D3(um)	D50(um)	D94 ( um)
F230	<82	53.0 ±3.0	>34
F240	<70	44.5 ±2.0	>28
F280	<59	36.5± 1.5	>22
F320	<49	29.2 ± 1.5	>16.5
F360	<40	22.8 ± 1.5	>12
F400	<32	17.3 ± 1.0	>8
F500	<25	12.8 ± 1.0	>5
F600	< 19	9.3 ± 1.0	>3
F800	< 14	6.5 ± 1.0	>2
F1000	< 10	4.5 ±0.8	>1
F1200	<7	3.0 ±0.5	>1(at 80%)
F1500	<5	2.0 ±0.4	>0.8(at 80%)
F2000	<3.5	1.2 ±0.3	>0.5(at 80%)

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