Black Silicon Carbide Powder

 
Background

Abrasive black silicon carbide powders are the perfect material that specifically manufactured to be used for general  abrasive applications in bonded abrasive tools, lapping and polishing  processes.  While silicon carbide has lower hardness and abrasive capacity than diamond and boron carbide, it is widely used for grinding non-ferrous materials, finishing tough and hard materials, filling up ceramic parts when the processing cost is important. 

     Technical data

Chemical Composition: 
Application	Grade	Grit Size	SIC
mass % - min.	Fe (Iron) 
mass % - max	C (Carbon) 
mass % -max	Magnetic admixture 
mass %- max	
Abrasive	AG	F12-F20	98.0	0.3	0.3	0.13	
		F24-F90	98.0	0.3	0.3	0.2	
		F100-F120	97.0	0.4	0.4	0.2	
		F150-F180	96.0	0.5	0.4	0.2	
		F230-F280	98.0	0.4	0.4	0.2	
		F320-F600	96.0	0.5	0.5	0.2	
		F800-F1000	95.0	0.7	0.6	0.2	
		F1200	92.0	0.9	0.7	0.2	

Application	Grade	Grit Size	SiC 
mass % - min.	Free C (Carbon) 
mass % - range	Total C (Carbon)
mass % - range	S (Sulfur) mass % - range	Moisture 
mass % - range	
Metallurgical	MG	0-20mm	88-92	3-6	30-33	0.1-0.2	1-3	

   Physical data

Structure :		Monocrystalline	
Particle shape		Blocky, sharp edged	
Color		Black	
Friability:		Semi-friable	
Knoop hardness (100 scale)		2480	
Bulk density		ANSI B74.12-1988	
Specific gravity:		3.20	

Particle size distribution for available grits.
Grading: FEPA Standard

Grit size	3% max.,
larger than, 
um	50% min.,
in size range, 
um	94% min.,
larger than, 
um	Grit size	3% max.,
larger than, 
um	50% min.,
in size range, 
um	94% min.,
larger than, 
um	
F12	2000	N/A	1400	F120	125	N/A	90	
F14	1700	N/A	1180	F150	106	N/A	63	
F16	1400	N/A	1000	F180	90	N/A	53	
F20	1180	N/A	850	F220	75	50.0-56.0	45	
F24	850	N/A	600	F240	70	42.5-46.5	28	
F30	710	N/A	500	F280	59	35.0-38.0	22	
F36	600	N/A	425	F320	49	27.7-30.7	16.5	
F40	500	N/A	355	F360	40	21.3-24.3	12	
F46	425	N/A	300	F400	32	16.3-18.3	8	
F54	355	N/A	250	F500	25	11.8-13.8	5	
F60	300	N/A	212	F600	19	8.3-10.3	3	
F70	250	N/A	180	F800	14	5.5-7.5	2	
F80	212	N/A	150	F1000	10	3.7-5.3	1	
F90	180	N/A	125	F1200	7	2.5-3.5	1	
F100	150	N/A	106					

Note:  JIS and P Standard graded powder is available on request
  Bulletin SiC2\01. Rev.4 (6.15.2002)