Products Description

K-type thermocouple bare wire is a commonly used temperature sensor element, commonly used for measuring temperatures in medium to high temperature environments. It is made of nickel chromium alloy, which mainly consists of nickel (Ni) and chromium (Cr), as well as a small amount of aluminum (Al) and silicon (Si). The diameter of the bare wire for K-type thermocouples is usually between 0.1mm and 3.0mm.

The bare wire of K-type thermocouple has good temperature measurement accuracy and stability, showing high sensitivity and reliability in the range of room temperature to about 1300 degrees Celsius. Its working principle is based on the thermoelectric effect, which generates an electromotive force when the temperature at the contact of two different metals changes, thereby achieving temperature measurement.

This type of bare wire thermocouple is suitable for temperature monitoring and control in various industrial fields, such as oil refining, chemical industry, metallurgy, power, etc. They are often used as temperature sensors in thermometers, heat treatment furnaces, furnaces, boilers, and other high-temperature equipment to help ensure the safe operation of industrial processes and the stability of product quality.

Parameter

The nominal chemical composition of the positive electrode (KP) is Ni: Cr ≈ 90:10,

The chemical composition of the negative electrode (KN) is Ni: Si ≈ 97:3,

Type K Temperature Range:
* Thermocouple grade wire, -200~1300℃(for short term) and 0~1100℃( for long term)
* Extension wire, 32 to 392F (0 to 200C)

Type K Accuracy : Standard: +/- 1.5C or +/-0.4%t

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Main features:

Temperature range: K-type thermocouples are commonly used to measure the temperature range from -200 ° C to 1260 ° C.

High precision: K-type thermocouples are suitable for precise temperature measurement due to their high precision and stability.

Good oxidation resistance: Chromel alloy has excellent oxidation resistance, making K-type thermocouples suitable for use in oxidizing atmospheres.

Economy: Compared to other high-temperature measurement thermocouples such as S-type or B-type, K-type thermocouples are more economical.

Application of K-type thermocouple bare wire

K-type thermocouple bare wire is widely used for temperature monitoring in various industrial processes due to its excellent performance.

Specific application areas:

Steel industry: monitoring temperature in steelmaking furnaces, rolling mills, and heat treatment furnaces.

Power industry: used to monitor the temperature of boilers, steam pipelines, and generators.

Chemical industry: Temperature measurement in chemical reactors, distillation towers, and storage tanks.

Glass and Ceramic Industry: Temperature measurement in high-temperature furnaces and sintering furnaces.

Automotive industry: used for engine testing, exhaust system and combustion chamber temperature monitoring.

Advantages of Thermocouple Technology

Quick response: K-type thermocouple bare wire has a fast response time, suitable for temperature measurement in dynamic processes.

Reliability: Due to its simple structure and no vulnerable parts, the K-type thermocouple is very reliable.

Easy to install: K-type thermocouple bare wire is easy to install and maintain, suitable for various industrial applications.

Compatibility: K-type thermocouples are compatible with various temperature measurement and recording devices.

Conclusion

K-type thermocouple bare wire plays an important role in industrial temperature measurement due to its wide temperature measurement range, high accuracy, and good oxidation resistance. With the development of industrial automation and process control technology, the application of bare wires for K-type thermocouples will become more widespread, providing strong support for precise temperature control and monitoring.