Silicon carbide (SiC) is made from quartz sand and petroleum coke or coal tar, wood chips and other raw materials by smelting in high temperature electric resistance furnace . In the high technology non-oxide refractory raw materials , such as C, N, B ,ilicon carbide is the most widely used and one of the most economic material. It can be called corundum or refractory sand. 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.
Green Silicon Carbide CHARACTERISTICS
1.small thermal expansion 2.high thermal conductivity 3.not easy to have thermal stress 4.good thermal shock resistance 5.corrosion resistance 6.extreme cold or heat 7.high temperature creep resistant ability
Product Parameters
Grit Size
Chemical Composition%(by weight)
SIC
F.C
Fe2O3
12#~90#
≥98.50
≤0.20
≤0.60
100#~180#
≥98.00
≤0.30
≤0.80
220#~240#
≥97.00
≤0.30
≤1.20
W63~W20
≥96.00
≤0.40
≤1.50
W63~W20
≥93.00
≤0.40
≤1.70
CHEMICAL CONTENT
SiC
98% min
SiO2
1% max
H2O3
0.5% max
Fe2O3
0.4% max
F.C
0.4% max
Magnetic Material
0.02% max
PHYSICAL PROPERTIES
Moh's Hardness
9.2
Melting Point
2300℃
Working Temperature
1900℃
Specific Gravity
3.2-3.45 g/cm3
Bulk Density
1.2-1.6 g/cm3
Color
Black
Elasticity Modulus
58-65x106psi
Coefficient of Thermal Expansion
3.9-4.5 x10-6/℃
Thermal Conductivity
71-130 W/m.K
Grain Size
0-1mm,1-3 mm, 3-5mm, 5-8mm,6/10, 10/18,200-0mesh,325mesh,
#60,#80,#100,#120,#180,#220,#240...Other special spec. could be supplied as required.
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High Purity 99% Sic Powder 16#~2000# Refractory Green Silicon Carbide For Abrasives And Sandblasting