Black Emery Sand Black SIC 12#
Product Description
A grade black carborundum Grain 98% SiC Black silicon carbide 30#36#40#46#
Black Silicon carbide Grain is an extremely hard and 99% SiC carborundum grit. As an abrasive material, it can work well for abrasive blasting, surface treatment, grinding on hard material such as marble, glass, jade, etc.
Silicon Carbide is produced by a process involving the electrochemical reaction of silica(SiO2)-in the form of quartz mixed with Carbon(C) in the form of raw petroleum coke. The stoichiometric mixture is reacted in an electrical resistance furnace at a temperature up to 2500 centigrade to yield high-quality crystals. The process is large furnace technology with a graphite electrode in the furnace center. The large crystals are then segregated, crushed, cleaned of magnetic impurities in high-intensity magnetic separators, and classified into narrow size fractions to suit the end-use. Dedicated lines produce products for different applications.
Product Advantage
1.Good oxidation resistance and chemical stability at high temperatures.
2.High hardness with Mohs 9.2-9.3. Even at 2000℃, it’s still get high strength.
3.Excellent toughness.
4.Low thermal conductivity. So it can resistant to themal shock.
5.High purity min SiC content is 98.5%.
6.High bulk density.
7.Black silicon carbide grit is washed by water before milling process, so there is few impurities.
Specification
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TYPICAL CHEMICAL ANALYSIS
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TYPICAL PHISICAL PROPERTIES
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||
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SiC
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≥98%
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Hardness:
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Mohs:9.15
|
|
SiO2
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≤1%
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Melting Point:
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Sublimes at 2250 ℃
|
|
H2O3
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≤0.5%
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Maximum service temperature:
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1900℃
|
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Fe2O3
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≤0.3%
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Specific Gravity:
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3.2-3.45 g/cm3
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F.C
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≤0.3%
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Bulk density(LPD):
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1.2-1.6 g/cm3
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|
Magnetic content
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≤0.02%
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Color:
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Black
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|
Particle shape:
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Hexagonal
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Available Size
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Grit designation
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Mean diameter in um
|
|
F12
|
1765
|
|
F14
|
1470
|
|
F16
|
1230
|
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F20
|
1040
|
|
F22
|
885
|
|
F24
|
745
|
|
F30
|
625
|
|
F36
|
525
|
|
F40
|
438
|
|
F46
|
370
|
|
F54
|
310
|
|
F60
|
260
|
|
F70
|
218
|
|
F80
|
185
|
|
F90
|
154
|
|
F100
|
129
|
|
F120
|
109
|
|
F150
|
82
|
|
F180
|
69
|
|
F220
|
58
|
Applications
1 Refractory,Furnace Burden,Castable,Ramming Compoynd,Refractory Bricks etc
2 Blasting,surface Treatment,Rust Removal
3 Cusmetics products manufacturing,Beauty crafts and Dermabrasion etc
4 Ceramic products
5 Grinding wheels,sandpaper etc
6 Glaze,floor coating,Floor / Wall Laminates
7 raw material of Knife Grinder,Whetstone,oilstone,grinding stone,abrasive stones and so on
8 Used to produce Polishing wax,polishing fluid,grinding powder,grinding fluid and so on
9 Wear-resisting floor
10 Brake linings
Processing
Packing&delivery
a.25 kgs/PVC Bag with plastic inner bag.
b.1MT /Jumbo Bag
c.25 kgs/PVC Bag,40Bags/Jumbo Bag
d.1 Metric Ton/Jumbo Bag/Pallet
e.25kgs/paper bag,1MT/Pallet
f.Other customized package are available
