98% SiC Carborundum F80
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Introduzione del prodotto di SiC Carborundum F80 al 98%.
98% SiC Carborundum F80 è adatto per mole abrasive in carburo di silicio. La sua durezza è solo dopo il diamante e il B4C, ed è più duro del carburo di silicio nero. Quindi è adatto per rettificare una vasta gamma di materiali duri come leghe di titanio, marmo, leghe di carburo, vetri ottici, ceramica, ecc.
Il carburo di silicio verde viene prodotto ad alta temperatura in un forno a resistenza elettrica con litri di sabbia e coke di petrolio. La purezza SiC del carburo di silicio verde è fino al 99% min. È un SiC fragile artificiale con un’elevata conduttività termica e un’elevata resistenza che non diminuisce a 1000 gradi centigradi.
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Proprietà fisiche tipiche del 98% di SiC Carborundum F80
| Durezza Mohs: | 9.5 |
| Durezza Vickers: | 3100-3400 kg/mm2 |
| Peso specifico: | 3,2 g/cm3 |
| Densità apparente (LPD): | 1,2-1,6 g/cm 3 |
| Colore: | Verde |
| Forma delle particelle: | Esagonale |
| Punto di fusione: | Dissociato a circa 2600 gradi centigradi |
| Temperatura massima di servizio: | 1900 gradi centigradi |
| Friabilità | Friabile |
| Conduttività termica | 0,013 cal/cm2.sec (900°C) |
| Coefficiente di dilatazione termica | 7-9 x10-6 / ℃ (0-1600°C) |
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Analisi chimica del 98% SiC Carborundum F80
| ANALISI CHIMICA TIPICA | ||
| Contenuto chimico | F20-F220 | F230-F2000 |
| SiC | Min 99% | Min 98,5% |
| SiO2 _ | Massimo 0,50% | Massimo 0,70% |
| F, Si | Massimo 0,20% | Massimo 0,40% |
| Fe 2 O 3 | Massimo 0,10% | Massimo 0,15% |
| FC | Massimo 0,20% | Massimo 0,30% |
| LOI | Massimo 0,05% | Massimo 0,09% |
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Caratteristica del prodotto di 98% SiC Carborundum F80
- Durezza estremamente elevata (Mohs 9.5, Vickers 3100-3400 kg/mm2) con elevata capacità di resistenza all’usura. La durezza del SiC diminuisce con l’aumento della temperatura. Tuttavia, anche alla temperatura di 1200°C, la durezza del SiC verde è circa il doppio di quella dell’allumina fusa.
- Excellent chemical resistance and oxidation resistance. When heated at high temperatures, silicon carbide only oxidizes on the surface, forming a silicon dioxide film. The film can protect the silicon carbide material from oxidation. As a result, even at 1600°C, green SiC can maintain stability to most strong acids and alkalis.
- High Toughness. The toughness of silicon carbide abrasive refers to the difficulty of breaking under the action of external force. Taking F46 grit as an example, the toughness of carborundum tested by the static pressure method is about 68-78%. Compared with fused alumina, the mechanical strength of silicon carbide is higher. F120 for example, the compressive strength of silicon carbide is 186KN/cm2, and the compressive strength of corundum abrasive is 100KN/cm2.
- Excellent thermal shock resistance with low thermal expansion coefficient. At a temperature of 25-1400 °C, the average thermal expansion coefficient of silicon carbide is 4.4×10-6/°C, while the thermal expansion coefficient of fused alumina is 7-8×10-6/°C.
- High-temperature resistance; high-temperature strength. The melting point of green silicon carbide is 2600 °C, and the maximum operating temperature can reach 1900 °C. Applying silicon carbide to the inner wall of the engine can increase the life of the engine.
- High purity. The green silicon carbide grain from us is milling from A grade green SiC block. Then sieve to high consistency particles.
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Applications of 98% SiC Carborundum F80
GC grinding wheel for Stone F46,F60,F80,F120,F150,F180,F220 Cutting disc for marble/Glass/graphite F36,F46 Bonded Grinding Wheel F46,F60,F80,F120,F150,F180,F220 Polishing wheel, Sanding disc F80,F120,F150,F180,F220,F240,F320,F360 F400,F500,F600,F800,F1000,F1200
Honing stone, whetstone F800,F1000,F1200,F1500,F2000 Diamond sanding disc F500,F600,F800,F1000,F1200,F1500
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Specification of 98% SiC Carborundum：
| Grit | 1 | 2 | 3 | 3 and 4 | 5 | Q5max,% | ||||
| W1,um | Q1,% | W2,um | Q2max,% | W3,um | Q3min,% | W4,um | Q3+Q4min,% | W5,um | ||
| F8 | 4000 | 0 | 2800 | 20 | 2360 | 45 | 2000 | 70 | 1700 | 3 |
| F10 | 3350 | 0 | 2360 | 20 | 2000 | 45 | 1700 | 70 | 1400 | 3 |
| F12 | 2800 | 0 | 2000 | 20 | 1700 | 45 | 1400 | 70 | 1180 | 3 |
| F14 | 2360 | 0 | 1700 | 20 | 1400 | 45 | 1180 | 70 | 1000 | 3 |
| F16 | 2000 | 0 | 1400 | 20 | 1180 | 45 | 1000 | 70 | 850 | 3 |
| F20 | 1700 | 0 | 1180 | 20 | 1000 | 45 | 850 | 65 | 710 | 3 |
| F24 | 1180 | 0 | 850 | 25 | 710 | 45 | 600 | 65 | 500 | 3 |
| F30 | 1000 | 0 | 710 | 25 | 600 | 45 | 500 | 65 | 425 | 3 |
| F36 | 850 | 0 | 600 | 25 | 500 | 45 | 425 | 65 | 355 | 3 |
| F40 | 710 | 0 | 500 | 30 | 425 | 40 | 355 | 65 | 300 | 3 |
| F46 | 600 | 0 | 425 | 30 | 355 | 40 | 300 | 65 | 250 | 3 |
| F54 | 500 | 0 | 355 | 30 | 300 | 40 | 250 | 65 | 212 | 3 |
| F60 | 425 | 0 | 300 | 30 | 250 | 40 | 212 | 65 | 180 | 3 |
| F70 | 355 | 0 | 250 | 25 | 212 | 40 | 180 | 65 | 150 | 3 |
| F80 | 300 | 0 | 212 | 25 | 180 | 40 | 150 | 65 | 125 | 3 |
| F90 | 250 | 0 | 180 | 20 | 150 | 40 | 125 | 65 | 106 | 3 |
| F100 | 212 | 0 | 150 | 20 | 125 | 40 | 106 | 65 | 90 | 3 |
| F120 | 180 | 0 | 125 | 20 | 106 | 40 | 90 | 65 | 75 | 3 |
| F150 | 150 | 0 | 106 | 15 | 90 | 40 | 75 | 65 | 63 | 3 |
| F180 | 125 | 0 | 90 | 15 | 75 | * | 63 | 40 | 53 | * |
| F220 | 106 | 0 | 75 | 15 | 63 | * | 53 | 40 | 45 | * |
| FEPA Grit | ds50-value (μm) |
| F 230 | 53.0 ± 3 |
| F 240 | 44.5 ± 2 |
| F 280 | 36.5 ± 1.5 |
| F 320 | 29.2 ± 1.5 |
| F 360 | 22.8 ± 1.5 |
| F 400 | 17.3 ± 1 |
| F 500 | 12.8 ± 1 |
| F 600 | 9.3 ± 1 |
| F 800 | 6.5 ± 1 |
| F 1000 | 4.5 ± 0.8 |
| F 1200 | 3.0 ± 0.5 |
| F 1500 | 2.0 ± 0.4 |
| F 2000 | 1.2 ± 0.3 |
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Production details of 98% SiC Carborundum F80：
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Packing:
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FAQ
Q: What is the difference between green silicon carbide and black silicon carbide?
A: First of all, Green silicon carbide has a higher purity of SiC(99%), black silicon carbide SiC purity is min 98%. Secondly, green silicon carbide is harder than black silicon carbide.
Q: Is the green silicon carbide powder from you by airflow sieving or water sieving?
A: Our green silicon carbide powder is made by the water sieving process. So the particles are of high consistency.
Q: What are the HS code and CAS NO. of silicon carbide?
A: HS code is 2849200000. CAS NO. is 409-21-2.
Q: Is there any restriction to export silicon carbide material from China?
A: Yes, it has to get an export license to export. We will provide it to customs.
Q: How many kgs of free samples can we get?
A: We provide free samples of less than 1 kgs. Clients have to bear the express cost and DGM certificate cost.
Q: How do you inspect products before delivery?
A: We will check items of chemical, density, particle size distribution, and packing before delivery. After delivery, we keep samples of each batch for 3 months.
Q: Do you demand MOQ?
A: MOQ is 1 bag, always goes 25kgs. The transportation cost will be higher than that of 1MT.
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