| Customization: | Available |
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| Type: | Metal Electrode |
| Cooling System: | Natural |
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ANSI standard Chromel / Alumel Type K Thermocouple Wire/Rod 8mm
NiCr/NiAl Type K Thermocouple Wire 1 Meter Length Rod
Classification for thermocouple TYPE K wire
1. Chemical Composition
| Material | Chemical composition (%) | ||||
| Ni | Cr | Si | Mn | Al | |
| KP(Chromel) | 90 | 10 | |||
| KN(Alumel) | 95 | 1-2 | 0.5-1.5 | 1-1.5 | |
2. Physical Properties and Mechnical Properties
| Material |
Density(g/cm3) |
Melting pointºC) |
Tensile Strength(Mpa) |
Volume resistivity(μΩ.cm) |
Elongation rate (%) |
| KP(Chromel) | 8.5 | 1427 | >490 | 70.6(20ºC) | >10 |
| KN(Alumel) | 8.6 | 1399 | >390 | 29.4(20ºC) | >15 |
3. EMF Value Range at Different Temperature
| Material | EMF value Vs Pt(μV) | |||||
| 100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC | |
| KP(Chromel) | 2816~2896 | 5938~6018 | 9298~9378 | 12729~12821 | 16156~16266 | 19532~19676 |
| KN(Alumel) | 1218~1262 | 2140~2180 | 2849~2893 | 3600~3644 | 4403~4463 | 5271~5331 |
| EMF value Vs Pt(μV) | ||||
| 700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC |
| 22845~22999 | 26064~26246 | 29223~29411 | 32313~32525 | 35336~35548 |
| 6167~6247 | 7080~7160 | 7959~8059 | 8807~8907 | 9617~9737 |
Thermocouple variety and index for thermocouple TYPE K ROD
| Thermocouple Variety and Index | ||
| Variety | Type | Measurement Range(°C) |
| 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 for thermocouple TYPE K ROD
| Thermocouple Type | Grade | Temperature Range(°C) | Allowable Deviation |
| type K and type N | I | -40-1100 | ±1.5°C or±0.4%T |
| II | -40-1300 | ±2.5°C or ±0.75%T | |
| III | -200-40 | ±2.5°C or ±1.5%T | |
| type E | I | -40-1100 | ±1.5°C or ±0.4%T |
| II | -40-1300 | ±2.5°C or ±0.75%T | |
| III | -200-40 | ±2.5°C or±1.5%T | |
| type J | I | -40-750 | ±1.5°C or ±0.4%T |
| II | -40-750 | ±2.5°C or ±0.75%T | |
| type T | I | -40-350 | ±0.5°C or± 0.4%T |
| II | -40-350 | ±1.0°C or± 0.75%T | |
| III | -200-40 | ±1.0°C or± 1.5%T | |
| NiCr-AuFe0.07 | I | -270-0 | ±0.5°C |
| II | ±1.0°C |
Specification of alloy wires for thermocouple TYPE K ROD
| Anode | Cathode | Diameter(mm) | Maximum Temperature(°C) | |||
| 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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