Black silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw marterials .Its hardness is between fused alumina and synthetic diamond.Mechanical intensity of it is higher than fused alumina .It is brittle and sharp has electrical and heat conductivity in some degree.The abrasives 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.

Abrasives grade

Grit size: 16#,20#,24#30#,36#,46#,54#,60#,80#,100#,120#,150#,180#,220#

Micropowder:240#,280#,320#,360#,400#,500#,600#,800#,1000#,1200#,1500#

            2000#,2500#,3000#,4000#

Refractory  grade:1-0mm,3-1mm,5-3mm,5-8mm -200mesh,-240mesh,-320mesh

The physical and chemical analysis

SIC   MIN  98%

F.C.   MAX  0.35%

Fe2O3  MAX 0.7%

Crystal system   Hexagonal

Color            Black

Micro Hardness   HV3100-3280

Grinding ability(compared with diamond as one)  0.25

Hardness(mohs)   9.15

Ture density    3.12 g/cm3

Bulk density     1.45-1.56g/cm3

 

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	0-1mm 1-3mm 3-5mm 5-8mm	97	0.35	1.35	—
	Fine Powder	-180mesh -200mesh -240mesh -320mesh	97	0.35	1.35	—
color			Black
Hardness(mohs)			9.15
Melting point(℃)			2250
Maximum service temperature(℃)			1900
Ture density(g/cm3)			3.9

Application

1. it are suitable for grinding high-speed,high carbon steel

2.high-grade refractory materials

3.abrasives tool

4.grinding and polishing

5.ceramics

6.LED

7.sandblasting

8.aviation

9.wire-electrode cutting

10.photovoltaic and solar energy

 Packing

1.25kg woven bag,40 woven bags/jumbo bag.

2.25kg woven bag,40 woven bags/pallet

3.25kg paper bag,40 paper bags/pallet

4.25kg paper  bag,40 paper bags/paper box