The heat treatment furnace features the following characteristics:

The temperature range of the heat treatment furnace is extensive. The primary aim is to achieve Austenitic steel with good plasticity, which requires a temperature range of 900-1200°C. Depending on the process requirements, temperatures can reach up to 1300°C for high-temperature treatments, while low-temperature treatments may only require around 100°C. Such a wide temperature range necessitates significant differences in furnace design. Furnaces with temperatures above 650°C are known as high-temperature heat treatment furnaces, where heat transfer is primarily through radiation with convection as a secondary method. Furnaces with temperatures below 650°C are called low-temperature heat treatment furnaces, where heat transfer is mainly dependent on convection. Heat treatment demands uniform furnace chamber temperatures to prevent localized overheating, so the furnace chamber and combustion chamber are sometimes separated.