Dengfeng Chuangwei Carbide Products Co., Ltd. produces various specifications of silicon carbide rods and molybdenum disilicide rods. The prices for the thick-end silicon carbide rods are as follows: the thick-end silicon carbide rod 8/150/150 is 13 yuan per piece, 40 yuan per meter for diameters 12-14, 55 yuan per meter for diameter 16, 65 yuan per meter for diameter 18, 65 yuan per meter for diameter 20, 90 yuan per meter for diameter 25, 120 yuan per meter for diameter 30, 150 yuan per meter for diameter 35, 200 yuan per meter for diameter 40, and 255 yuan per meter for diameter 45. All the above prices include 17% VAT and shipping costs. For the same specifications, the old process is 10 yuan per meter more expensive than the new process. 

The service life of the elements is related to many conditions. First, the quality of the furnace must be good. For manufacturers producing the same product, those using furnaces from the 48th Research Institute can use silicon carbide heating elements for more than half a year, while those using furnaces from other manufacturers are doing well if they last three months. For example, a vanadium-nitrogen alloy sintering company in Fujian uses a tunnel kiln produced by the 48th Research Institute and replaces silicon carbide rods and molybdenum disilicide rods once a year (molybdenum disilicide rods are used in the high-temperature zone, and silicon carbide rods in the low-temperature zone). In contrast, two companies in Xinjiang using tunnel kilns produced in Henan for sintering the same product need to replace the elements multiple times within a year. (Our company does not produce furnaces and has no business dealings with the 48th Research Institute; this is just a matter of fact.) Secondly, it is related to the product being sintered. For instance, a company in Zhejiang sintering special glass rarely uses silicon carbide heating elements for more than three days. In the reflective materials industry, silicon carbide rods are typically used for about twenty days. In the magnetic materials industry, the service life of silicon carbide rods ranges from 3 to 12 months, or even longer. Next is the quality of the elements themselves. The quality of domestic silicon carbide rods is generally similar, almost all based on the same formula, with differences only in service quality and price (excluding joint ventures). Lastly, it is related to the operator of the electric furnace.