| ANSI Code |
ANSI MC 96.1 Colour Coding |
Alloy Combination |
Comments Environment Bare Wire |
Maximum T/C Grade Temp Range |
EMF (mV) Over Max Temp Range |
| Thermocouple Grade |
Extension Grade |
+Lead |
-Lead |
| J |
 |
 |
Iron
Fe
(magnetic)
|
Constantan Copper-Nickel
Cu-Ni
|
Reducing, Vacuum, Inert. Limited Use in Oxidizing at High Temperatures. Not Recommended for Low Temperatures. |
-210 to 1200 C
-346 to 2193 F
|
-8.095 to 69.553 |
| K |
 |
 |
Nickel-Chromium
Ni-Cr
|
Nickel-Aluminium
Ni-Al
(magnetic)
|
Clean Oxidizing and Inert. Limited Use in Vacuum or Reducing. Wide Temperature Range, Most Popular Calibration |
-270 to 1372 C
-454 to 2501 F
|
-6.458 to 54.886 |
| T |
 |
 |
Copper
Cu
|
Constantan Copper-Nickel
Cu-Ni
|
Mild Oxidizing, Reducing Vacuum or Inert. Good Where Moisture Is Present. Low Temperature & Cryogenic Applications |
-270 to 400 C
-454 to 752 F
|
-6.258 to 20.872 |
| E |
 |
 |
Nickel-Chromium
Ni-Cr
|
Constantan Copper-Nickel
Cu-Ni
|
Oxidizing or Inert. Limited Use in Vacuum or Reducing. Highest EMF Change Per Degree |
-270 to 1000 C
-454 to 1832 F
|
-9.835 to 76.373 |
| R |
None Established |
 |
Platinum-13% Rhodium
Pt-13% Rh
|
Platinum |
Oxidizing or Inert. Do Not Insert in Metal Tubes. Beware of Contamination. High Temperature |
-50 to 1768 C
-58 to 3214 F
|
-0.226 to 21.101 |
| S |
None Established |
|
Platinum-10% Rhodium
Pt-10% Rh
|
Platinum |
Oxidizing or Inert. Do Not Insert in Metal Tubes. Beware of Contamination. High Temperature |
-50 to 1768 C
-58 to 3214 F
|
-0.236 to 18.693 |
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