Available from stock
Type E thermocouple wire
Type E, NiCr-CuNi thermocouple is a high-accuracy thermocouple for a moderate temperature range. In general, it has a smaller temperature range compared to other thermocouple junctions: -270°C to +900°C. Type E thermocouples are distinguished for their high Electromotive Force (EMF) output per degree, making them the most efficient among all standard thermocouples for applications that demand high EMF output.
They exhibit excellent resistance to oxidation within an operating temperature range of 150°C to 870°C, making them ideal for use in thermal-generators or thermopiles, where they accurately measure very small temperature differences.
These thermocouples are well-suited for cryogenic applications due to their high output of 68μV/°C and are non-magnetic. In cryogenic environments they provide a broad operational temperature range from -50°C to +740°C and a narrower range from -110°C to +140°C.
Type E thermocouple wire specifications
| Specification | Type E bare thermocouple wire |
|---|---|
| Thermocouple type | Type E |
| Conductor combination | NiCr-CuNi |
| Positive leg | EP – NiCr |
| Negative leg | EN – CuNi |
| Temperature range | -270°C to +900°C |
| Standard tolerance | IEC 60584 Class 1 |
| Available diameters | Ø0.80–3.90 mm* |
| EMF output | 68 μV/°C |
| Certificates | 3.1 material certificate + calibration certificate |
| Suitable environments | Oxidising, reducing and inert* |
| Limitation | Not recommended unprotected in sulphurous atmospheres above 538°C |
| Other stated limitation | Not suitable for vacuum or low-oxygen applications |
| Key applications | Cryogenic/sub-zero, thermopiles, thermal generators |
Our standard type E wire
Please contact us if you need different diameters. We can supply more custom made diameters (combinations) than stated below.
| Thermocouple | Class | Outside Diameter in mm | On Stock | |
|---|---|---|---|---|
| Type E | Class 1 | 0.30 mm | – | Send inquiry |
| Type E | Class 1 | 0.50 mm | – | Send inquiry |
| Type E | Class 1 | 0.80 mm | Yes | Send inquiry |
| Type E | Class 1 | 1.00 mm | – | Send inquiry |
| Type E | Class 1 | 1.50 mm | – | Send inquiry |
| Type E | Class 1 | 2.00 mm | – | Send inquiry |
| Type E | Class 1 | 3.00 mm | – | Send inquiry |
Delivery times stated are for delivery to Kamet’s warehouse
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Request a quotation for the wire and quantity you need for your project.
Environment and industrial usage
- Suitable for sub-zero, oxidising, and inert applications
- Not suitable for vacuum or low oxygen applications
- Inappropriate for use in sulfuric environments
- Non-magnetic nature makes it suitable for applications where magnetic fields are generated.
- Commonly used in the aerospace industry due to its fast response and used for measuring gas temperature in flow chambers.
The type E thermocouple wire can also be used in MI thermocouple cable. More about MI cable with type E thermocouple.
Specifications and physical properties
Operating temperature
Please note that the data below are given as indicative values. Approximate working temperature range:
- Continues: 0 to +800ºC
- Short term: -40 to +900ºC
Chemical composition
- EP ( + ) = 90%Ni 10%Cr
- EN (-) = 44%Ni 55% Cu
Physical properties
| EP | EN | |
|---|---|---|
| Density (g/cm3) | 8.73 | 8.90 |
| Melting point (°C) | 1430 | 1210 |
| Resistivity | 100 | 49 |
| Temp. coef. of resistance (x10-6/°C) | 300 | 66 |
| Linear expansion (coef. x10-6/°C) | 17 | 14 |
| Thermal Conductivity (W m-1 °C-1 at 20°C) | 12.90 | 21.20 |
EP/EN EMF reference table (mV)
The table below provides the stated Type E EP/EN electromotive force (EMF) reference values in millivolts as a function of temperature. These reference values should not be interpreted as the recommended operating temperature range of the wire.
| °C | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
| 0 | 0 | 0.591 | 1.192 | 1.801 | 2.42 | 3.048 | 3.685 | 4.33 | 4.985 | 5.648 | 6.319 |
| 100 | 6.319 | 6.998 | 7.685 | 8.379 | 9.081 | 9.789 | 10.504 | 11.224 | 11.951 | 12.684 | 13.421 |
| 200 | 13.421 | 14.164 | 14.9121 | 15.664 | 16.42 | 17.181 | 17.945 | 18.713 | 19.484 | 20.257 | 21.036 |
| 300 | 21.036 | 21.817 | 22.6001 | 23.386 | 24.174 | 24.964 | 25.757 | 26.552 | 27.348 | 28.146 | 28.946 |
| 400 | 28.946 | 29.747 | 30.55 | 31.354 | 32.159 | 32.965 | 33.772 | 34.579 | 35.388 | 36.196 | 37.005 |
| 500 | 37.005 | 37.815 | 38.624 | 39.434 | 40.244 | 41.053 | 41.862 | 42.671 | 43.479 | 44.286 | 45.093 |
| 600 | 45.093 | 45.9 | 46.705 | 47.51 | 48.313 | 49.116 | 49.917 | 50.718 | 51.517 | 52.315 | 53.112 |
| 700 | 53.112 | 53.908 | 54.703 | 55.497 | 56.289 | 57.08 | 57.87 | 58.659 | 59.446 | 60.232 | 61.017 |
| 800 | 61.017 | 61.801 | 62.583 | 63.364 | 64.144 | 64.922 | 65.698 | 66.473 | 67.246 | 68.017 | 68.787 |
| 900 | 68.787 | 69.554 | 70.319 | 71.083 | 71.844 | 72.603 | 73.36 | 74.115 | 74.869 | 75.621 | 76.373 |
Other products in this category
Type K
NiCr-Ni bare wire -270°C to +1260°C
Type N
NiCrSil-NiSil bare wire -270°C to +1260°C
Type J
Fe-CuNi bare wire -210°C to +750°C
Type T
Cu-CuNi bare wire -270°C to +370°C
Type S
Pt10%Rh-Pt bare wire -50°C to +1600°C
Type R
Pt13%Rh-Pt bare wire -50°C to +1450°C
Type B
Pt30%Rh-Pt6%Rh bare wire 600°C to 1700°C