Product Description Black silicon carbide (SIC) is made from quartz sand and carbon( anthracite coal tar or petroleum coke) in electric esistance furnace at high temperature. It has the characteristic of high hardness, excellent electrical and heat conductivity, low thermal expansion, and high abrasion resistance. Thus, SIC is the most suitable material of abrasives, refractories, deoxidizer of metallurgical, special ceramics, electric heating elements and so on. Specification Grade Chemical Compositions SiC FC Fe2O3 Moisture Min Max 90 90 3 1.2 0.5 88 88 4 1.5 0.5 85 85 4.5 1.8 0.5 80 80 5 3 0.5 70 70 8 4 0.5 Silicon Carbide Applications 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. Advantages 1. Professional in abrasives & refractory materials since 2001 2.Strict quality control system and Certificate 3. Reliable Pre-shipment Inspection 4. Very Competitive price 5. Advanced equipment and superior technology 6. Various packing 7. Rich materials source 8. Fast delivery 9.Very near Tianjin and Qingdao Port. 10. Superior service and Specialist team with quickest response 11. Different language service such as English, Russia, Spanish,Korea, Japanese, Portuguese and etc.