SiC Protection Tube
SiC Products
About SiC Protection Tube / SiC Heater Protection Tube / SiC Thermocouple Protection Tube
We specialize in producing high-performance SiC ceramic protection tubes for heater and thermocouple applications in non-ferrous metal processing, heat-treatment and industrial furnace systems. Made from high-purity silicon carbide and sintered at 1400°C to form nitride-bonded silicon carbide (NSiC), our protection tubes deliver durability and stability far beyond conventional metal or clay-graphite tubes.
SiC heater and thermocouple protection tubes are engineered for long-term use in continuous high-temperature service, molten metal contact, corrosive gas atmospheres and rapid thermal cycling. Their outstanding wear resistance, corrosion resistance and thermal shock performance help extend equipment lifespan, improve temperature measurement accuracy and reduce maintenance or replacement costs.
Available in various sizes, lengths and open/closed-end designs, our ceramic protection tubes ensure efficient heat transfer, stable temperature readings and zero contamination to molten aluminum, zinc or magnesium—making them a reliable choice for foundries, die-casting facilities and industrial heating equipment manufacturers seeking higher operational consistency and performance.
Application
Thermocouple protection for accurate temperature measurement
Industrial furnaces and heat-treatment systems
Metallurgical, chemical and petrochemical environments
High-temperature areas where wear and corrosion resistance are required
Features of SiC Protection Tube
Excellent Wear Resistance – durable SiC structure for long-term use in abrasive conditions
Strong Corrosion Resistance – effective in molten metal, chemical gas and oxidizing atmospheres
Thermal Shock Stable – resists cracking during rapid heating and cooling cycles
No Contamination to Molten Metal – maintains alloy purity and accurate temperature readings
Extended Service Life – reduces unplanned downtime, replacement frequency and operating costs
Comparison of SiC Protection Tubes
High-Purity Self-Produced SiC Raw Material
We use our own high-purity SiC raw material, ensuring consistent quality from crystal to finished product. Each SiC protection tube is produced with strict quality control to deliver reliable and stable performance in demanding industrial applications.
Advanced Equipments for Firing
Our automatic micro-computer controlled large-volume nitriding furnace—winner of the First Prize of China Machinery Industry Science & Technology Award for its residual-heat utilization system and patented utility design—ensures stable product quality and sintering performance.
As an original manufacturer of SiC ceramic products, Hongyuan offers direct-from-factory supply with stable quality and competitive prices.
Contac us
Hanjiang Hongyuan Xiangyang Silicon Carbide Special Ceramics Co.,Ltd.
Middle of Zhonghang Road, Aerospace Industrial Park, Xiangyang City, Hubei, China
Tel:+86-710-3155070
Mobile:+86-15072239775
Email: sales@hysic.com
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