Thermocouple wire is the essential sensing medium used to monitor and control temperatures during Post-Weld Heat Treatment (PWHT). By utilizing the Seebeck effect, the wire generates a small voltage proportional to the temperature difference between the hot junction (at the weld) and the cold junction (at the recorder). This category features high-quality Type K Thermocouple Wire, the industrial standard for heat treatment, known for its wide temperature range and reliability. Available with various insulation types—such as Glass Fiber for standard use or Ceramic Fiber for extreme temperatures—our wire is designed to provide rapid, accurate thermal feedback, ensuring your project stays within precise metallurgical specifications.