Wire

Return to Wire Index

Metal Sheathed Thermocouple Wire

Cerampak Thermocouple Wire

Cerampak - magnesium oxide insulated, metal sheathed thermocouple wire - is used primarily to fabricate thermocouple assemblies. The rugged construction of compacted MgO insulation inside a metal sheathing also makes it useful as an extension wire through harmful environments.

All sheath materials are furnished in a properly annealed condition to allow hand bending in the field.

Cerampak is weldable, flexible - can be bend on a radius two times its diameter - and is moisture resistant when properly sealed.

Material selected from the following Table B will be furnished in a coil with the ends sealed. No wires will be exposed unless requested.

Table A is provided to help in the proper selection to suit your requirements.

Table A - Nominal Wire Size and Lengths

Sheath, Fraction Diameter, Inches Conductor Size (AWG)*
Single Duplex
- .040 33 N/A
1/16 .063 29 30
1/8 .125 24 26
3/16 .188 19 20
1/4 .250 16 19
5/16 .313 14 16
*Sizes given are nominal minimums. Actual sizes may vary.

 

Table B - Material Selection

Sheath, Diameter Order Code   ANSI Calibration Order Code   Sheath Material Order Code
.040" 040 Chromel/Constantan E 304 St. St. 34
1/16" (.063") 1 Iron Constantan J 310 St. St. 30
1/8" (.125") 2 Chromel/Alumel K 316 St. St. 36
3/16" (.188") 3 Copper/Constantan T 347 St. St. 37
1/4" (.250") 4 Plat 10% RH/Plat S 410 St. St. 40
5/16" (.313") 5 Plat 13% RH/Plat R 446 St. St. 46
3/8" (.375") 6 Plat 30% RH/Plat 6% RH B Inconel 600 60
        Inconel 601 61
        Inconel 702 72
        Inconel 800 80

Notes:
1. For Premium Grade (Special Limits of Error) material: add "PG to the calibration code. Example: 4KPG60

2. For Duplex (4 wire) material: add prefix "2" to the calibration code. Example: 42K60

3. The most commonly used sizes and materials are listed. Others are available - Specify.

How To Order:

Make a selection from each of the 3 sections of Table B and combine to form a catalog number. Specify catalog number and length required.

For duplex (4 wire), special limits of error, or special material - refer to the notes above.


Return to Wire Index