sic heating element
Sic heating elements are made from quality green SiCpowder, which added to some additivies according to the materials proportion.Silicon carbide heating elements are non-metallic products. Compared withmetallic heating elements, they have a series of characteristics, such ashigher temperature, antioxidation, anticorrosion, increase temperature fast,low coefficient of thermal expansion and so on. Therefore, they are widely usedin electronic and magnetic material, ceramics, metallurgy industry and so on.
Sic heating elements Specifications and Resistance Range
| (d) Diameter | (L)Length of Hot Zone | (L1) Length of Cold Zone | (L) Overall Length | (d) Resistance |
| 8 | 100-300 | 60-200 | 240-700 | 2.1-8.6 |
| 12 | 100-400 | 100-300 | 300-1100 | 0.8-5.8 |
| 14 | 100-500 | 150-350 | 400-1200 | 0.7-5.6 |
| 16 | 200-600 | 200-350 | 600-1300 | 0.7-4.4 |
| 18 | 200-800 | 200-400 | 600-1600 | 0.7-5.8 |
| 20 | 200-800 | 250-600 | 700-2000 | 0.6-6.0 |
| 25 | 200-1200 | 250-700 | 700-2600 | 0.4-5.0 |
| 30 | 300-2000 | 250-800 | 800-3600 | 0.4-4.0 |
| 35 | 400-2000 | 250-800 | 900-3600 | 0.5-3.6 |
| 40 | 500-2700 | 250-800 | 1000-4300 | 0.5-3.4 |
| 45 | 500-3000 | 250-750 | 1000-4500 | 0.3-3.0 |
| 50 | 600-2500 | 300-750 | 1200-4000 | 0.3-2.5 |
| 54 | 600-2500 | 300-250 | 1200-4000 | 0.3-3.0
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The influence of operating temperature and surface load on the heater surface in a different atmosphere
| Atmosphere | (℃)
Furnace Temperature |
（w/cm2）
Surface Load |
the influence on the heater |
| Ammonia | 1290 | 3.8 | the action on SiC produces and destroys the protection film of SiO2 |
| Carbondioxide | 1450 | 3.1 | corrode SiC |
| Carbo Monoxide | 1370 | 3.8 | absorb carbon powder and influence the protection film of SiO2 |
| Haloaen | 704 | 3.8 | corrode sic and destroys the protection film of SiO2 |
| Hydrogen | 1290 | 3.4 | the action on SiC produces and destroys the protection film of SiO2 |
| Nitrogen | 1370 | 3.1 | the action on SiC produces insulating layer of silicon nitride |
| Sodium | 1310 | 3.8 | corrode SiC |
| Sulphur Dioxide | 1310 | 3.8 | corrode SiC |
| Oxygen | 1310 | 3.8 | SiC oxidized |
| Water Vapour | 1090-1370 | 3.1-3.6 | the action on sic produces hydrate of silicon |
| Hydrocarbon | 1370 | 3.1 | absorb carbon powder resulted in hot pollution
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Shandong Zhongpeng Special Ceramics Co., Ltd is one of the largest silicon carbide ceramic new material solutions in China. SiC technical ceramic: Moh’s hardness is 9 (New Moh’s hardness is 13), with excellent resistance to erosion and corrosion, excellent abrasion – resistance and anti-oxidation. SiC product’s service life is 4 to 5 times longer than 92% alumina material. The MOR of RBSiC is 5 to 7 times that of SNBSC, it can be used for more complex shapes. The quotation process is quick, the delivery is as promised and the quality is second to none. We always persist in challenging our goals and give our hearts back to society.
