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| Categories | Thermocouple Bare Wire |
|---|---|
| Brand Name: | Tankii |
| Model Number: | K |
| Certification: | ISO9001 |
| Place of Origin: | China |
| MOQ: | 5~10kg as per diameter |
| Price: | USD24~60/kg |
| Payment Terms: | T/T, Paypal, Western Union, MoneyGram, |
| Supply Ability: | 2000 Ton per year |
| Delivery Time: | 5-7 days |
| Packaging Details: | ON spool and carton package. As the order quantity and customer requirement. |
| Item: | TANKII Thick Wire 2.0mm 3.2mm 6.0mm 8.0mm Thermocouple Wire /Rod /Bar Chromel And Alumel With Oxidized Surface Used For Laboratory High-Temperature Reaction Device |
| Package: | in coil or by length |
| Material: | NiCr90/10- Ni97Al3 |
| Surface: | bright or oxidized as per request |
| Diameter available: | 0.05mm-12mm can be produced |
| MOQ: | 5~10kg as per sizes |
| Payment: | TT, Paypal, western union, |
| Lead time: | 5~20 days |
| Company Info. |
| Shanghai Tankii Alloy Material Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
K-type thermocouple wire is a temperature sensor composed of two different metal alloys,
and its definition and core characteristics are as follows:
1. Definition
K-type thermocouple wire is the abbreviation for nickel chromium
nickel aluminum (NiCr NiAl) thermocouple, which belongs to a type
of base metal thermocouple. It generates thermoelectric potential
through the Seebeck Effect of two different metals to measure
temperature.
2. Composition
Positive electrode (KP): Nickel chromium alloy (NiCr), typically
containing 90% nickel and 10% chromium.
Negative electrode (KN): Nickel aluminum alloy (NiAl), typically
containing 95% nickel, 2% aluminum, 2% manganese, and 1% silicon.
3. Working principle
When the two ends of a K-type thermocouple wire are at different
temperatures, a thermoelectric potential (EMF) is generated in a
closed loop due to the difference in electron density between the
two metals. By measuring the magnitude of the thermoelectric
potential, the temperature value can be calculated.
What differentiates one thermocouple from another is the metals in its two wires: the positive leg and the negative leg. Because each thermocouple type has a different pairing, they differ in temperature limits, process conditions (inert, oxidizing, reducing atmospheres, heavy vibration), and so on.
Conductor Name | Thermocouple Type | Grade | Temperature range ℃ | Allowable Tolerance /℃ |
| PtRh30-PtRh6 | B | Ⅱ | 600~1700 | ±0.25% t |
| Ⅲ | 600~800 | ±4 | ||
| 800~1700 | ±0.5%t | |||
| PtRh13-Pt | R | Ⅰ | 0~1100 | ±1 |
| 1100~1600 | ±[1+(t－1100) ×0.3％] | |||
| Ⅱ | 0~600 | ±1.5 | ||
| 600~1600 | ±0.25% t | |||
| PtRh10-Pt | S | Ⅰ | 0~1100 | ±1 |
| 1100~1600 | ±[1+(t－1100) ×0.3％] | |||
Ⅱ | 0~600 | ±1.5 | ||
| 600~1600 | ±0.25% t | |||
| NiCr-Ni | K | Ⅰ | -40~1100 | ±1.5℃ or ±0.4%t |
| Ⅱ | -40~1300 | ±2.5℃ or ±0.75%t | ||
| Ⅲ | -200~40 | ±2.5℃ or ±1.5%t | ||
| NiCrSi-NiSi | N | Ⅰ | -40~1100 | ±1.5℃ or ±0.4%t |
| Ⅱ | -40~1300 | ±2.5℃ or ±0.75%t | ||
| Ⅲ | -200~40 | ±2.5℃ or ±1.5%t | ||
| NiCr-CuNi (Constantan) | E | Ⅰ | -40~1100 | ±1.5℃ or ±0.4%t |
| Ⅱ | -40~1300 | ±2.5℃ or ±0.75%t | ||
| Ⅲ | -200~40 | ±2.5℃ or ±1.5%t | ||
| Fe-CuNi (Constantan) | J | Ⅰ | -40~750 | ±1.5℃ or ±0.4%t |
| Ⅱ | -40~750 | ±2.5℃ or ±0.75%t | ||
| Cu-CuNi (Constantan) | T | Ⅰ | -40~350 | ±0.5℃ or ±0.4%t |
| Ⅱ | -40~350 | ±1.0℃ or ±0.75%t | ||
| Ⅲ | -200~40 | ±1.0℃ or ±1.5%t |
|
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