What is a thermocouple wire?

Thermocouple wires are essential components in temperature measurement systems, widely used across industries such as manufacturing, HVAC, automotive, aerospace, and scientific research. At Tankii, we specialize in producing high-performance thermocouple wires designed for precision, durability, and reliability in even the most demanding environments.

A thermocouple consists of two dissimilar metal wires joined at one end (the "hot" or measuring junction). When this junction is exposed to heat, it generates a small voltage due to the Seebeck effect—a phenomenon where temperature differences between two connected metals produce an electrical potential. This voltage is measured at the other end (the "cold" or reference junction) and converted into a temperature reading.

The key advantage of thermocouples is their ability to measure a wide range of temperatures, from cryogenic conditions up to extreme heat, depending on the wire type.

We provide a complete selection of thermocouple wires to suit various industrial and commercial needs:

1. Type K Thermocouple Wire (Nickel-Chromium / Nickel-Alumel)

Temperature Range: -200°C to 1260°C (-328°F to 2300°F)

Applications: General-purpose industrial use, furnaces, chemical processing

Advantages: Wide temperature range, good accuracy, and oxidation resistance

1. Type J Thermocouple Wire (Iron / Constantan)

Temperature Range: 0°C to 760°C (32°F to 1400°F)

Applications: Food processing, plastic injection molding, vacuum environments

Advantages: High sensitivity, cost-effective for moderate temperatures

1. Type T Thermocouple Wire (Copper / Constantan)

Temperature Range: -200°C to 370°C (-328°F to 700°F)

Applications: Cryogenics, medical equipment, laboratory testing

Advantages: Excellent stability at low temperatures, moisture-resistant

1. Type E Thermocouple Wire (Nickel-Chromium / Constantan)

Temperature Range: -200°C to 900°C (-328°F to 1652°F)

Applications: Power plants, pharmaceutical manufacturing

Advantages: Highest output signal among standard thermocouples

1. High-Temperature Specialty Wires (Type R, S, B, and Custom Alloys)

For extreme environments such as aerospace, metallurgy, and semiconductor manufacturing

High Accuracy & Consistency – Manufactured to meet ANSI, ASTM, IEC, and NIST standards

Durable Insulation Options – Available in fiberglass, PTFE, ceramic, and metal sheathing for harsh conditions

Flexible & Customizable – Different gauges, lengths, and shielding materials to fit specific applications

Long-Term Reliability – Resistant to oxidation, vibration, and thermal cycling

Fast Response Time – Ensures real-time temperature monitoring

Industrial Process Control – Monitoring furnaces, boilers, and reactors

HVAC Systems – Temperature regulation in heating and cooling systems

Food & Beverage Industry – Ensuring safe cooking, pasteurization, and storage

Automotive & Aerospace – Engine testing, exhaust monitoring, and thermal management

Medical & Laboratory Equipment – Sterilization, incubators, and cryogenic storage

Energy & Power Plants – Turbine and exhaust gas temperature measurement

At Tankii, we combine advanced metallurgy, precision engineering, and strict quality control to deliver thermocouple wires that outperform industry standards. Our products are trusted by leading manufacturers and research institutions worldwide for their:

Superior Material Quality – Only high-purity alloys for consistent performance

Custom Solutions – Tailored wire configurations for specialized needs

Competitive Pricing – Cost-effective without compromising durability

Expert Support – Technical assistance to help you select the right thermocouple for your application

Whether you need standard thermocouple wires or custom-engineered solutions, we have the expertise to meet your requirements.

Contact us today to discuss your project or request a quote!