J Type Thermocouple Grade Wire is designed for temperature sensing and thermocouple manufacturing applications. It consists of two different conductors: Iron (Fe) as the positive leg and Constantan (Cu-Ni) as the negative leg.

This type of thermocouple wire provides stable thermoelectric performance and reliable temperature measurement in industrial environments. It is commonly used for manufacturing J type thermocouples, temperature sensors, heating equipment, industrial ovens, machinery, molds, and process temperature monitoring systems.

Typical J Type thermocouple temperature range: -210°C to +760°C

The actual operating temperature depends on the wire diameter, insulation material, and application environment.

• Fast thermal response

  
  

  Owing to the tiny wire diameter, ultra‑fine thermocouple wires possess low thermal mass. They can rapidly track temperature changes and deliver quick response to transient‑temperature measurement.
• Minimal disturbance to measured objects

  
  

  The fine dimension brings little heat‑sink effect. It barely interferes with the original temperature field of test samples, which helps obtain accurate and authentic temperature data.
• High flexibility

  
  

  Thin thermocouple conductors are soft and bendable. They adapt to narrow gaps, curved surfaces and compact installation spaces without easy fracture.
• Small‑size measurement feasibility

  
  

  They support temperature sensing in micro‑areas, tiny components and confined cavities where ordinary thick thermocouple wires cannot be mounted.
• Light weight

  Low mass adds negligible extra load to delicate specimens, which is critical for dynamic test pieces and lightweight assemblies.

  
  

  • Wide temperature‑measuring range

  Matching different thermocouple grades (K, T, J, S type etc.), ultra‑fine thermocouple wires cover cryogenic to high‑temperature working conditions.

• Rapid-response temperature testing in laboratories and R&D
• Micro-component temperature monitoring for electronic devices, MEMS and miniature sensors
• Thermal analysis, material curing, plastic processing and heat-treatment equipment
• Aerospace, automotive component thermal test, vacuum and corrosive-environment temperature measurement
• Precision equipment internal wiring with strict space constraints

• Thermocouple Type: J
• Positive Conductor: Iron (Fe)
• Negative Conductor: Constantan (Cu-Ni)
• Good temperature sensitivity and stable output
• Suitable for industrial temperature measurement
• Available in different wire sizes and insulation materials
• Custom specifications available

The thermocouple cable is packaged in a robust, protective box to ensure its safe delivery. Inside the box, the cable is packed with foam to provide extra protection. Before shipping, the package is sealed to ensure the safety of the contents.

The thermocouple cable is shipped via standard shipping services such as USPS, FedEx, DHL, and UPS. Depending on the customer's needs, the shipping service can be upgraded to expedited shipping services. The delivery time may vary depending on the shipping service and the customer's location.