The demand for Type B thermocouples has soared: the preferred solution for global industrial high-temperature measurement

[Industry Trends] With the increasing demand for high-temperature measurement accuracy in industries such as steel, chemical engineering, and aerospace, Type B thermocouples (platinum-rhodium 30- platinum-rhodium 6) are becoming a popular choice in the global industrial sector due to their outstanding stability and ultra-high-temperature performance (0- 1820°C). According to the latest market report, the export volume of Type B thermocouples increased by 18% year-on-year in 2024. As a core supplier, China is promoting the continuous expansion of this market through technological innovation.

The core advantages of Type B thermocouples

Ultra-high temperature resistance: It can measure up to 1820°C, far exceeding that of K-type or S-type thermocouples, and is suitable for extreme environments such as smelting and glass manufacturing.

High precision and stability: The platinum-rhodium alloy material effectively reduces oxidation and drift, maintaining an accuracy of ±0.5% even after long-term use.

Low maintenance cost: No compensating wires are required, significantly extending the lifespan in high-temperature environments and reducing the total cost of ownership (TCO) for customers.

Global market drivers

Industrialization of emerging markets: New steel mills and petrochemical projects in Southeast Asia and the Middle East drive demand.

Applications in the new energy industry: High-precision temperature control is required for the production of photovoltaic silicon materials and the monitoring of nuclear energy equipment.

International standard upgrade: The stricter safety certifications for industrial equipment in Europe and America (such as ATEX, IEC) promote the procurement of high-quality thermocouples.

The key role of Chinese suppliers

Chinese manufacturers have significantly enhanced the durability of Type B thermocouples in corrosive environments through nano-coating technology and optimization of ceramic protective tubes. Some enterprises have obtained CE and ISO 17025 certifications and support customized services (such as explosion-proof type and rapid response type) to meet the demands of high-end customers in Europe and America.

[Expert Opinion]

"Type B thermocouples have almost no substitutes in measurement scenarios above 1800°C," said the technical director of an international metallurgical equipment manufacturer. "The cost performance and delivery speed of people from a certain country suppliers are changing the traditional supply chain pattern."

【 Purchasing Suggestions 】

When choosing Type B thermocouples, foreign trade customers should pay attention to:

✅ Material certification (ensure that the platinum-rhodium 30- platinum-rhodium 6 ratio complies with ASTM E230 standard);

✅ Protective tube material (alumina or molybdenum tube suitable for different corrosive environments);

✅ Supplier qualifications (preferred companies with export experience and third-party test reports).

[Conclusion]

With the complication of high-temperature industrial processes, the market potential of Type B thermocouples will continue to be released. The rapid response and technological iteration capabilities of China's supply chain provide highly reliable solutions for global buyers.