Product and Ordering Information
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.