Products
Thermocouple Wire - Thermocouple Grade Wire Types - Bare Base Metal Thermocouple Wire
Marlin offers thermocouple wire in popular ANSI/ASTM calibrations and in commonly used sizes. 8 GA. and larger sizes are shipped in coils; 14 GA. and smaller are shipped on non-returnable spools.
BASE
METAL THERMOCOUPLE WIRE |
Standard
Package C-Coil, S-Spool |
Finish
Availability 1-Bright, 2-Oxidized, 3-Rust Veto |
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Wire
Type |
Element
Polarity |
Wire
(ft./lb.) |
Type
Code |
AWG |
||
Iron |
Positive
(+) |
22.8 |
JP |
8 |
60lb.
- C |
3 |
91.2 |
14 |
25lb
- S |
3 |
|||
365 |
20 |
25lb
- S |
1 |
|||
Constantan |
Negative
(-) |
20.2 |
JN |
8 |
60lb.
- C |
1 |
80.9 |
14 |
25lb
- S |
1 |
|||
324 |
20 |
25lb
- S |
1 |
|||
Chromel |
Positive
(+) |
21 |
KP |
8 |
60lb
- C |
1,
2 |
83 |
14 |
25lb
- S |
1,
2 |
|||
130 |
16 |
25lb
- S |
1,
2 |
|||
331 |
20 |
25lb
- S |
1 |
|||
838 |
24 |
5lb
- S |
1 |
|||
Alumel |
Negative
(-) |
21 |
KN |
8 |
60lb
- C |
1,
2 |
83 |
14 |
25lb
- S |
1,
2 |
|||
130 |
16 |
25lb
- S |
1,
2 |
|||
331 |
20 |
25lb
- S |
1 |
|||
838 |
24 |
5lb
- S |
1 |
|||
Bare wire coils or spools may vary significantly due to production melt sizes, e.g. If you order 40 lbs. and receive 47 lbs. on a spool, we reserve the right to overship. Bare wire is sold in matched pairs. Please order equal amounts of each element.