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High Hardness Black Silicon Carbide Grinding Powder for Refractory Materials
High Hardness Black Silicon Carbide Grinding Powder for Refractory Materials
High Hardness Black Silicon Carbide Grinding Powder for Refractory Materials
High Hardness Black Silicon Carbide Grinding Powder for Refractory Materials
High Hardness Black Silicon Carbide Grinding Powder for Refractory Materials
High Hardness Black Silicon Carbide Grinding Powder for Refractory Materials

High Hardness Black Silicon Carbide Grinding Powder for Refractory Materials

Min.Order: 1
Product origin: Shanghai, China
Infringement complaint: complaintComplaint
US$ 300 ~ 800

Description
High Hardness Black Silicon Carbide Grinding Powder for Refractory Materials
GradeChemical Compositions(%)
SiCFCFe2O3Moisture
MinMax
SiC9090.03.01.20.5
SiC8888.04.01.5
SiC8585.04.51.8
SiC8080.05.03.0
SiC7070.08.04.0
Silicon Carbide added to the furnace turn into the Si and C for casting iron, One is to improve the carbon content, and the second is to strengthen the reducibility of iron liquid. Greatly reduce the adverse effect of corrosion the furnace. Prevent carbide separate out, Increasing the amount ferrite, The cast iron compact structure, Significantly improve the processing performance and cutting face is bright and clean. Increase the nodular case iron graphite ball number per unit area. Improve spheroidizing rate. For reducing nonmetallic inclusion and slag, eliminate shrinkage, eliminate subcutaneous blowhole also has a good effcet.
Standard
Size: 0-1mm; 0-3mm; 0-10mm; 1-10mm; etc
Packing: in 25kg bag or in 1mt big bag. Etc
 
Black Silicon Carbide (Standard : GB/T2480-2008)
Usage Black Sic For vitrified wheels/sanding beltBlack Sic For bonded abrasiveBlack Sic For flap discs by hand
Type& Grade CC-BC-P
NOGrit NoChemical composition (%)
SiC (≥)F.C. (≤)Fe2O3(≤)
CF4-F90 P12-P10098.500.20.4
F100-F150 P120-P15098.100.250.5
F180-F220 P180-P22097.200.30.55
F230-F280 P240-P36097.200.30.55
F320-F500 P400-P100097.000.350.6
F600-F800 P1200-P150096.500.40.6
F1000-F1200 P2000-P250095.500.50.7
C-B&C-PF4-F90 P12-P10098.100.250.5
F100-F150 P120-P15097.600.30.6
F180-F220 P180-P22096.700.350.65
F230-F280 P240-P36096.700.350.65
F320-F500 P400-P100096.500.40.7
F600-F800 P1200-P150096.000.450.7
F1000-F1200 P2000-P250095.000.550.8

Green Silicon Carbide is produced in electric resistance furnace from quartz sand, petroleum coke and salt in high temperature. It's semi-transparent in green color with crystal structure, high hardness and strong cutting ability, stable chemical characteristics, good thermal conductivity. It's suited for grinding hard, brittle and non-metallic such as cemented carbides, optical glass, ceramics, etc.
 
Chemical & Physical Properties
Crystal FormAlpha SiC hexagonal system
Chemical natureSlight acid
Reaction with acidsVery slight surface action with hydrofluoric acid
Reaction with AlkalisAttacked at high temperature by alkalis and iron oxide
Oxidation-reduction effects  Starts to oxide slowly at 800°C. No reduction
True Density (g/cm3)3.20
Hardness  Knoop (kg/cm2)2500-2900
Moh's9.5
ColorGreen
Color after firingGreen
Decomposition point2300°C
Max Usable temperature1540°C  in air
Specific heat (cal/g.oC )0°C500°C1000°C
0.140.280.13
Coefficient of thermal conductivity (cal/cm2.sec.oC)600°C800oC1000°C
0.0800.0610.051
Electrical resistivity(Wcm)25°C100°C400°C800°C1400°C
5046.426.67.80.65
Coefficient of liner expansion (x10-6)25°C -500°C25°C -1000°C25°C-1500°C25°C-2000°C25°C-2500°C
4.635.125.485.775.94
 
Chemical Composition (% by weight)
Grit sizesSiCF.CFe2O3
20# - 90#99.0 min0.20 max0.20 max
100# - 180#98.5 min0.25 max0.50 max
220# - 240#97.5 min0.25 max0.70 max
280# - 400#97.0 min0.30 max0.70 max
500# - 600#95.5 min0.30 max0.70 max
800# - 1200#94.0 min0.30 max0.70 max
 



FAQ
Q1: Is your company SID a manufacturer or trader?
A1: Manufacturer, with our own trading department.
Q2: What's the MOQ?
A2. No limitation.
Q3: Can we visit your factory?
A3: Of course ,welcome at any time,seeing is believing
Q4: What's your payment terms?
A4: Negotiation
Q5: Is your company accept customization?
A5: Professional technology teams and engineers all can meet with you.
Q6: How do you guarantee quality?
A6: For every production processing,we have complete QC system for the chemical composition and Physical properties.After production,all the goods will be tested ,and the quality certificate will be shipped along with goods.
Q7: What's the proportion of abroad business?
A7: Abroad market around 50%; Domestic market around 50%; and now export proportion is increasing.
Q8: Your company would provide samples?
A8: Yes, we could supply samples for free, and the freight will be undertaken by clients.


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