High-Temperature K-Type MI Thermocouple Cable (NiCr-NiAl) for Industrial Heat Monitoring

High-temperature K-Type Mineral Insulated (MI) thermocouple cables are widely used for industrial heat monitoring due to their robustness, high thermal stability, and reliability in harsh environments. The K-Type thermocouple, composed of Nickel-Chromium (NiCr) for the positive leg and Nickel-Aluminum (NiAl) for the negative leg, is one of the most common thermocouples used in various industrial applications due to its versatility and accuracy. When combined with a mineral-insulated construction, this thermocouple cable becomes ideal for high-temperature measurements in industries that require precise and continuous heat monitoring.

In this article, we will explore the material composition, applications, and user needs that make the K-Type MI thermocouple cable an essential tool for industrial heat monitoring.

Material Composition and Characteristics

The K-Type MI thermocouple cable is designed to withstand extreme temperatures and mechanical stress while providing accurate temperature measurements. It is made up of a combination of high-quality materials that offer both electrical conductivity and thermal stability in demanding industrial environments.

• NiCr (Nickel-Chromium): The positive leg of the K-Type thermocouple is made from a Nickel-Chromium alloy, which provides excellent resistance to oxidation and high temperatures. This material is commonly used for temperature measurements up to 1372°C (2502°F), making it ideal for most industrial applications.
• NiAl (Nickel-Aluminum): The negative leg of the thermocouple consists of a Nickel-Aluminum alloy, which also offers excellent thermal and mechanical properties at high temperatures. NiAl ensures long-term stability and accuracy in temperature readings.
• Mineral Insulation (MgO): The cable is insulated with a mineral compound such as Magnesium Oxide (MgO), which provides excellent electrical insulation and thermal conductivity. This mineral insulation allows the thermocouple to function in high-temperature environments without compromising the accuracy or integrity of the temperature readings.

Key Features

• Wide Temperature Range: The K-Type MI thermocouple cable can measure temperatures in the range of -200°C to 1372°C (-328°F to 2502°F), making it suitable for a wide range of high-temperature industrial applications.
• Robust Construction: The mineral insulation provides excellent protection against mechanical damage, moisture, and corrosive environments, ensuring long-term performance in harsh industrial settings.
• High Stability and Accuracy: The combination of NiCr and NiAl offers excellent stability at high temperatures, ensuring that the temperature measurements remain accurate and reliable over extended periods.
• Durability: The MI construction ensures that the thermocouple cable is durable and resistant to physical damage, such as abrasion, vibration, and pressure, which is critical in industrial environments.
• Corrosion and Oxidation Resistance: The high-quality alloys used in the thermocouple construction offer resistance to oxidation and corrosion, extending the lifespan of the cable even in challenging conditions.