Thermocouple Types for High Temperature Applications

Type

Calibration

Upper Service

Temperature

Remarks

S

Platinum-

10% Rhodium

vs. Platinum

2700° F (1480° C)

For use in oxidizing, inert

and vacuum atmospheres

R

Platinum-

13% Rhodium

vs. Platinum

2700° F (1480° C)

For use in oxidizing, inert

and vacuum atmospheres

B

Platinum-

30% Rhodium

vs. Platinum-

6% Rhodium

3100° F (1700° C)

For use in oxidizing, inert

and vacuum atmospheres

C*

Tungsten-

5% Rhenium

vs. Tungsten-

26% Rhenium

4200° F (2320° C)

3450° F (1900° C)

For use in hydrogen

or inert atmospheres

For use in vacuum atmospheres