Audited Supplier
SP-K-BW-8
Metal Electrode
Natural
Temperature Measuring
Chromel Alumel
Type K Thermocouple Bare Wire Chromel Alumel Rod
ANSI(Chromel Alumel)
1 Meter(Customized) or Coil Package
Hard/1/2 Hard/ Soft
8mm
Ohmalloy/OEM
Waterproof Paper+Plywood Case
0.02-12mm
China
75051200
Product Description
ANSI standard Chromel / Alumel Type K Thermocouple Wire/Rod 8mm
NiCr/NiAl Type K Thermocouple Wire 1 Meter Length Rod
- Type: K, E, J, T, N, etc
- Style: bright or oxidized
- Application: forming two hot electrodes of thermocouple or compensating cable
- Place of Origin: Jiangsu, China (Mainland)
- Brand Name: Thermocouple wire
- Product Size: 0.05mm to 10.0mm
- Delivery time: 7-20days which is according to quantity
- Eco-friendly: Yes
- MOQ: 1kgs
- Trade term: FOB, EXW, CIF, CFR
- Payment term: T/T, Western Union, L/C
- Certificate: ISO,CQC ROHS
- Making sample time: all type in stock
- Advantage: high quality with high measuring accuracy, fast thermal response, high mechanical strength, long service lifetime, wide temp measuring range of -200-1300centigrade
Classification for thermocouple TYPE K wire
- Thermocouple level (high temperature level). This type of thermocouple wire is mainly suitable for thermocouple type K, J, E, T, N and L and other high temperature detection instrument, temperature sensor, etc.
- Compensating wire level (low temperature level). This type of thermocouple wire is mainly suitable for compensating cable and extension wire of various thermocouples of type S, R, B, K, E, J, T, N and L, heating cable, control cable and so on.
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 | ||||
