Grade datasheet · Type E
Type E Thermocouple Wire
The highest EMF output of the base-metal thermocouples — roughly 68 µV/K — which makes it the practical choice when the readout has limited resolution. Positive leg NiCr, negative leg constantan.
0.018–6.00Diameter, mm
1 kgMinimum order
3–7 dLead time
MTCWith every lot
Identification
What this grade is called elsewhere
| System | Designation |
|---|---|
| IEC | Type E (IEC 60584-1) |
| Positive leg | NiCr10 / EP |
| Negative leg | Constantan / Cu55Ni45 / EN |
| ASTM | E230 |
| GB | E 型热电偶丝 |
Grade equivalence is indicative. Confirm against the standard your drawing cites; our quotation states the designation we will produce to.
Composition
Nominal chemistry, % by weight
| Element | Nominal / limit |
|---|---|
| EP — Ni | Balance |
| EP — Cr | ≈ 10 |
| EN — Ni | ≈ 45 |
| EN — Cu | Balance |
Properties
What the numbers are, and where they stop
| Property | Value |
|---|---|
| EMF at 100 °C | ≈ 6.32 mV |
| EMF at 500 °C | ≈ 37.01 mV |
| EMF at 900 °C | ≈ 68.79 mV |
| Max service, bare wire | ≈ 900 °C (oxidising) |
| Tolerance class | Class 1 or Class 2 |
Nominal values for selection only. Contractual composition, tolerance and mechanical properties are stated on the inspection report issued with each shipment.
Use
Where this grade earns its place
- High-sensitivity temperature measurement
- Laboratory and calibration probes
- Cryogenic and low-temperature work
- Process control loops
Family: Thermocouple Wire
Questions we get asked
Is type E the highest output base-metal thermocouple?
Yes — about 68 µV/K at room temperature, the highest of the common base-metal types. That is why it is used where signal resolution is the constraint.
Can it be used below 0 °C?
Yes, and it is one of the better base-metal choices for low temperature because of the large Seebeck coefficient.
Send the specification — diameter, grade, temper, quantity.
We come back with a confirmed lead time and the documentation we can issue for the shipment. 100 g sample at cost; orders from 1 kg.
Request a quotation Order a 100 g sample