Thermocouple constants

Type

Metals

W / dbl foot

Seebeck Coefficient

Std. Error

Range

+

-

(20 AWG)

mV / ° C

ref. ° C

° C

° C

B

94% Pt / 6%Rh

70% Pt / 30% Rh

0.2

6

600

4.4 - 8.6

0 to 1820

E

90% Ni / 10% Cr

Constantan

0.71

58.5

0

1.7 - 4.4

-270 to 1000

J

Iron

Constantan

0.36

50.2

0

1.1 - 2.9

-210 to 760

K

90% Ni / 10% Cr

Ni

0.59

39.4

0

1.1 - 2.9

-270 to 1372

R

87% Pt / 10% Rh

Pt

0.19

11.5

600

1.4 - 3.8

-50 to 1768

S

90% Pt / 10% Rh

Pt

0.19

10.3

600

1.4 - 3.8

-50 to 1768

T

Cu

Constantan

0.3

38

0

0.8 - 2.9

-270 to 400