Type N thermocouple bare wire detail:
Positive: Nicrosil , Negative: Nisil
Color: · bright or oxidized
Product Size: 0.05mm to 10.0mm
Thermocouple bare wire is used at temperatures up to 1260°C (2300°F). MICC thermocouple bare wire is supplied with bright or oxidized surface according to standard or special EMF requirements. Each individual lead is calibrated against platinum and the EMF values are shown on each coil or spool.
| Thermocouple Variety and Index |
| Variety |
Type |
Measurement Range(ºC) |
| NiCr-NiSi |
K |
-200-1300 |
| NiCr-CuNi |
E |
-200-900 |
| Fe-CuNi |
J |
-40-750 |
| Cu-CuNi |
T |
-200-350 |
| NiCrSi-NiSi |
N |
-200-1300 |
| NiCr-AuFe0.07 |
NiCr-AuFe0.07 |
-270-0 |
Thermocouple type and grade
| Thermocouple Type |
Grade |
Temperature Range(ºC) |
Allowable Deviation |
| type K and type N |
I |
-40-1100 |
±1.5ºC or±0.4%t |
| II |
-40-1300 |
±2.5ºC or ±0.75%t |
| III |
-200-40 |
±2.5ºC or ±1.5%t |
| type E |
I |
-40-1100 |
±1.5ºC or ±0.4%t |
| II |
-40-1300 |
±2.5ºC or ±0.75%t |
| III |
-200-40 |
±2.5ºC or±1.5%t |
| type J |
I |
-40-750 |
±1.5ºC or ±0.4%t |
| II |
-40-750 |
±2.5ºC or ±0.75%t |
| type T |
I |
-40-350 |
±0.5ºC or± 0.4%t |
| II |
-40-350 |
±1.0ºC or± 0.75%t |
| III |
-200-40 |
±1.0ºC or± 1.5%t |
| NiCr-AuFe0.07 |
I |
-270-0 |
±0.5ºC |
| II |
±1.0ºC |
Specification of alloy wire
| Anode |
Cathode |
Diameter(mm) |
Maximum Temperature(ºC) |
| name |
code |
name |
code |
long-time using |
short-time using |
| NiCr10(Chromel) |
KP |
NiSi3(Alumel) |
KN |
Φ0.3 |
700 |
800 |
| Φ0.5 |
800 |
900 |
| Φ0.8 Φ1.0 |
900 |
1000 |
| Φ1.2 Φ1.6 |
1000 |
1100 |
| Φ2.0 Φ2.5 |
1100 |
1200 |
| NiCr14.2Si |
NP |
NiSi4 |
NN |
Φ3.2 |
1200 |
1300 |
| NiCr10(Chromel) |
EP |
CuNi45(Copel) |
EN |
Φ0.3 Φ0.5 |
350 |
450 |
| Φ0.8 Φ1.0 Φ1.2 |
450 |
550 |
| Φ1.6 Φ2.0 |
550 |
650 |
| Φ2.5 |
650 |
750 |
| Φ3.2 |
750 |
900 |
| Fe(Iron) |
JP |
CuNi45(Copel) |
JN |
Φ0.3 Φ0.5 |
300 |
400 |
| Φ0.8 Φ1.0 Φ1.2 |
400 |
500 |
| Φ1.6 Φ2.0 |
500 |
600 |
| Φ2.5 Φ3.2 |
600 |
750 |
| Cu(Copper) |
TP |
CuNi45(Copel) |
TN |
Φ0.2 Φ0.3 |
150 |
200 |
| Φ0.5 Φ0.8 |
200 |
250 |
| Φ1.0 Φ1.2 |
250 |
300 |
| Φ1.6 Φ2.0 |
300 |
350 |
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