Tungsten Rhenium Thermocouple Protection Tubes for High-Temperature Applications
博客文章简介。
5/8/20261 min read
Tungsten rhenium thermocouples (W-Re thermocouples) are widely used for ultra-high temperature measurement up to 2300°C. However, their performance and lifespan strongly depend on one key component — the protection tube.
As a manufacturer of tungsten tubes and molybdenum tubes, we provide high-quality protection solutions designed for extreme furnace environments.
Why Protection Tubes Are Important
W-Re thermocouples are sensitive to environmental conditions such as:
Oxidation at high temperature
Contamination in furnace atmosphere
Thermal shock and mechanical stress
A proper protection tube helps:
Extend service life
Improve measurement stability
Protect thermocouple wires
Reduce signal drift
Tungsten vs Molybdenum Protection Tubes
Tungsten Protection Tubes
5
Extremely high melting point (3420°C)
Best for vacuum and ultra-high temperature use
Ideal for >1800°C applications
Molybdenum Protection Tubes
6
Good performance up to ~1800°C
More cost-effective than tungsten
Easy to machine and customize
Applications
Tungsten and molybdenum protection tubes are widely used in:
Vacuum heat treatment furnaces
Single crystal growth systems
Powder metallurgy
Aerospace testing
High-temperature research equipment
Why Material Quality Matters
Low-quality tubes can cause:
Cracking under heat
Oxidation failure
Short thermocouple life
Unstable readings
High-purity tungsten and molybdenum significantly improve reliability and service life.
Our Products
We supply:
Tungsten protection tubes
Molybdenum protection tubes
W-Re thermocouple assemblies
Custom sizes and OEM solutions
As a direct manufacturer, we ensure consistent quality and stable supply for industrial users.
Contact Us
Looking for reliable high-temperature protection tubes for thermocouples?
Contact us for technical support and customized solutions.
