K-type thermocouple wire

K-type thermocouple is a temperature sensor that is typically used in conjunction with display instruments, recording instruments, and electronic regulators. K-type thermocouples typically consist of temperature sensing elements, mounting fixtures, and junction boxes, among other main components.
K-type thermocouple is currently the most widely used inexpensive metal thermocouple, with a usage equal to the sum of other thermocouples. The diameter of K-type thermocouple wire is generally 1.2mm to 4.0mm.
The nominal chemical composition of the positive electrode (KP) is: Ni：Cr=90: 10. The nominal chemical composition of the negative electrode (KN) is: Ni:Si=97： 3. Its operating temperature ranges from -200 ℃ to 1300 ℃.
K-type thermocouples have the advantages of good linearity, high thermoelectric potential, high sensitivity, good stability and uniformity, strong anti-oxidation performance, and low price. They can be widely used by users in oxidizing inert atmospheres.
K-type thermocouples cannot be directly used at high temperatures in sulfur, reducing or reducing, oxidizing alternating atmospheres, and in vacuum, nor are they recommended for weakly oxidizing atmospheres.
Thermocouple temperature measurement must consist of three parts: thermocouple, connecting wire, and display instrument.