| Grade Standard: | Industrial Grade |
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| Quality: | First Class |
| Product Name: | Silicon Carbide |
| Shelf Life: | 2 Years |
| Appearance: | Green Powder |
| Sample: | Provide |
| Samples: |
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| Customization: |
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Audited Supplier Silicon carbide is an inorganic substance with a chemical formula of SiC. It is made by high temperature smelting of raw materials such as quartz sand, petroleum coke (or coal coke), and wood chips (salt is needed to produce green silicon carbide) through a resistance furnace. Silicon carbide also exists in nature, a rare mineral, moissanite. Among the non-oxide high-tech refractory materials such as C, N, and B, silicon carbide is the most widely used and most economical one.
Green silicon carbide is made from petroleum coke and high-quality silica as the main raw material, adding salt as an additive, and smelted at high temperature in a resistance furnace. Its hardness is between corundum and diamond, and its mechanical strength is higher than that of corundum.
Black Silicon Carbide is produced at high temperature in an electric resistance type furnace with quartz sand and petroleum coke as its main raw materials. Its hardness is between fused alumina and synthetic diamond. The mechanical intensity of it is higher than that of fused alumina. It is brittle and sharp and has electrical and heat conductivity in some degree. Black silicon carbide is suitable for grinding cast iron, non-ferrous metal, leather, rubber, wood, rock, it also be used as high grade refractory material.
| Grit | SiC | F.C. | Fe2O3 |
| F12-F90 | 98.50Min | 0.20Max | 0.60Max |
| F100-F150 | 98.00Min | 0.30Max | 0.80Max |
| F180-F220 | 97.00Min | 0.30Max | 1.20Max |
| F230-F400 | 96.00Min | 0.40Max | 1.20Max |
| F500-F800 | 95.00Min | 0.40Max | 1.20Max |
| F1000-F1200 | 93.00Min | 0.50Max | 1.20Max |
| P12-P90 | 98.50Min | 0.20Max | 0.60Max |
| P100-P150 | 98.00Min | 0.30Max | 0.80Max |
| P180-P220 | 97.00Min | 0.30Max | 1.20Max |
| P230-P500 | 96.00Min | 0.40Max | 1.20Max |
| P600-P1500 | 95.00Min | 0.40Max | 1.20Max |
| P2000-P2500 | 93.00Min | 0.50Max | 1.20Max |
| Item | Black silicon carbide | Green silicon carbide |
| Basic mineral | α-SIC | α-SIC |
| Crystal system | hexagonal | hexahonal |
| Crystal color | Black | Green |
| Density | ≥3.12g/cm3 | ≥3.18g/cm3 |
| Mohs hardness | 9.15 | 9.15 |
| Micro hardness | HV3100-3280 | HV3200-3400 |
| Grinding ability(compared with diamond as one) | 0.25 | 0.28 |
| Liner expansion coefficient when 900ºC.α·10-6k-1 | 4.4 | 4.6 |
| Electrical resistivity | 3×105-3×107Ω.cm | 3×105-3×107Ω.cm |
Q1: Can I get some samples?
A: Yes, free samples can be supplied, and the shipping cost should be paid by our customers.
Q2: How to start orders?
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
Q3: How about your payment methods?
A: T/T, Western Union and Money Gram can be accepted.
Q4: How to confirm the Product Quality before placing orders?
A: You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests, we will manufacture the products according to your requests.
Q5: How about the package?
A: Usually we provide the package as 220kg drum or as your requirement.
Q6: What's your MOQ?
A: Our MOQ is 5 tons for sea shipment.
Q7: How about delivery lead time?
A: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q8: How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your payment.
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