Technical Data - SentroTech

Heating Element Grades

UT-1800: The maximum element temperature is 1800°C in air. Typical applications for this type of element include laboratory furnaces, sintering furnaces, testing equipment, industrial production furnaces and glass melting furnaces.

UT-1700: The maximum element temperature is 1700°C in air. Typical applications for this type of element include industrial furnaces for heat treatment and metal sintering.

Resistivity Dependence with Temperature

The resistivity of an Ultra T molybdenum disilicide heating element increases rapidly with temperature. This resistance relationship with temperature is shown in Figure 1. MoSi₂ heating elements will not age during servicing; therefore, new and old heating elements can be used together.

Figure 1, Temperature and resistivity characteristics of UT-1800 and UT-1700 elements

Surface Power Load

The maximum surface load of the element is dependent on the furnace operating temperature and the configuration of the elements. Figure 2 shows the relationship between the maximum element surface load and the furnace temperature with free radiation of the MoSi₂ heating elements.

Figure 2, Recommended maximum watt loading for UT-1700 ( red )and UT-1800 ( gray ) elements