Shaanxi KeGu New Material Technology Co., Ltd
| Packaging Details | Strong wooden box for Global shipping |
| Delivery Time | Negotiable |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Model Number | Customizable |
| Place of Origin | China |
| Brand Name | KEGU |
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Product Specification
| Packaging Details | Strong wooden box for Global shipping | Delivery Time | Negotiable |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Model Number | Customizable |
| Place of Origin | China | Brand Name | KEGU |
| High Light | Sintered SiC Thermocouple Protection Tubes ，25mm Sintered SiC Thermocouple Protection Tubes | ||
Designed for harsh high-temperature and corrosive environments including coal gasifiers, hot blast stoves, non-ferrous metal smelting, and sulfuric acid concentration plants. The 25mm OD / 20mm ID configuration with 2.5mm wall thickness balances mechanical strength and thermal response time, establishing it as the industrial standard size.
| Specification | OD (mm) | ID (mm) | Wall Thickness (mm) | Typical Length (mm) |
|---|---|---|---|---|
| Mainstream type | 25 | 20 | 2.5 | 900–950 |
| Parameter | Value | Unit |
|---|---|---|
| SiC content | ≥98 | wt% |
| Density | ≥3.10 | g/cm³ |
| Apparent porosity | 0 | vol% |
| Flexural strength | 400–550 | MPa |
| Compressive strength | >2500 | MPa |
| Thermal conductivity (25°C) | 120–270 | W/(m·K) |
| Coefficient of thermal expansion (25–500°C) | 3.8 | *10⁻⁶/K |
| Max. service temperature (oxidizing) | 1600–1750 | °C |
| Max. service temperature (protective atmosphere) | 1900–2000 | °C |
| Property | SSiC (pressureless sintered) | RBSiC (reaction-bonded) |
|---|---|---|
| SiC content | ≥98% | ~82% |
| Free silicon | None | ~17% |
| Max. service temperature | 1650–1750°C | <1400°C (free silicon melts) |
| Flexural strength | 400–550 MPa | 250–350 MPa |
| Resistance to strong acids/bases | Excellent | Poor |
| Density (apparent porosity) | 0% porosity | Open porosity present |
| Industry | Specific Application | Temperature Range |
|---|---|---|
| Chemical | Coal gasifiers, sulfuric acid concentration towers | 1200–1650°C |
| Metallurgical | Molten aluminum/copper/zinc bath temperature measurement | 700–1700°C |
| Iron & Steel | Hot blast stove domes, continuous casting | 1000–1500°C |
| Kilns | Cement rotary kilns, glass melting furnaces | 900–1600°C |
| Material | Max. Service Temp (°C) | Acid/Alkali Resistance | Thermal Shock Resistance | Cost | Suitable Application |
|---|---|---|---|---|---|
| SSiC (this product) | 1750 | Excellent | Excellent | High | >1400°C, strong corrosion |
| Alumina (99%) | 1600 | Good | Fair | Medium | Clean atmospheres, mild acids/alkalis |
| Metal alloy (e.g., Inconel) | 1100 | Poor | Good | Medium–High | Low temperature, reducing atmospheres |
| Fused silica | 1100 | Not alkali-resistant | Excellent | Low | Short-term, low-temperature measurements |
The 25*20mm pressureless sintered SiC (SSiC) thermocouple protection tube, manufactured by cold isostatic pressing (CIP) followed by pressureless sintering, delivers exceptional high-temperature capability, strong corrosion resistance, high thermal conductivity, and uniform dimensional precision. It is the preferred protective sheath for demanding applications above 1400°C. The above installation, comparison, lifetime, and customization data provide practical guidance for selection and use.
For further information or to discuss your specific requirements, please contact us directly.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2017
Ecer Certification：
Verified Supplier
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