The material used in high temperature furnaces depends on the specific application and operating conditions. Some common materials used as heating elements in high temperature furnaces include tungsten, molybdenum, graphite, and refractory metals.
Tungsten is a rare metal that is often used as a high temperature heating element. It has a high melting point, allowing it to be used in temperatures of around 2500oC and in high vacuum levels of less than 10-4 Torr. Tungsten is commonly used in high temperature vacuum furnaces for its durability and sustained durability at high temperatures.
Molybdenum is another refractory metal that is commonly used as a heating element in high temperature furnaces. It is known for its high melting point and excellent thermal conductivity. Molybdenum is often used in heat-treating applications above about 1482°C (2700°F).
Graphite is a popular material for hot zone vacuum furnaces due to its durability and low cost. It is commonly used in high temperature vacuum furnaces for its ability to withstand extreme temperatures and vacuum environment. Graphite heating elements are typically used for low-temperature operations such as vacuum tempering.
Refractory metals, such as tantalum, are also used in high temperature furnaces. Tantalum is a popular choice for heat-treating applications above about 1482°C (2700°F). Refractory metal hot zone vacuum furnaces are preferred for materials and applications that demand a clean environment.
In summary, the material used in high temperature furnaces can vary depending on the specific application and operating conditions. Tungsten, molybdenum, graphite, and refractory metals like tantalum are commonly used as heating elements in high temperature furnaces.
Looking for high-quality laboratory equipment for high temperature applications? Look no further than KINTEK! With a wide range of materials including nickel-chromium alloys, molybdenum, graphite, tantalum, tungsten, and precious metals like platinum and rhodium, we have the perfect solution for all your heat-treating and research needs. Visit our website today and explore our extensive catalog of high temperature furnaces and heating elements. Experience the KINTEK difference - where quality meets innovation!
