Silicon carbide radiant tubes can withstand application temperatures up to 1,380°C and can input up to twice as much energy into furnaces as alloy radiant tubes.
Features and Benefits
- Made of robust silicon carbide
- Operating temperatures up to 1,380°C
- Long service life
- Advanced silicon carbide microstructures provide high thermal conductivity and shock resistance
- Industry-leading diameter and length
- Suitable for most furnace applications
- Thin-wall designs increase thermal performance and enable design flexibility
- Long service life
- High thermal strength
- Able to outperform metal tubes without any bending
- Customized production options
- Reduced furnace running costs
- Reduced maintenance frequency
- Use especially for horizontal heat treatment of thick steel sheets
What is the maximum application temperature for Silit® SKD ceramic radiant tubes?
The maximum application temperature is 1,380°C.
What are the maximum dimensions for Silit® SKD ceramic radiant tubes?
The maximum dimensions are 300 mm in diameter and 3,500 mm in length. Radiant tubes can be customized to accommodate customer-specific mounting requirements.
What is the difference between ceramic and metal radiant tubes?
Ceramic radiant tubes made from Silit® provide twice the heat transfer rate (50 kW/m2 – 1,050°C) of a standard metallic radiant tube. Ceramic radiant tubes do not require bending, meaning their service life is longer versus a metallic tube.
What is different between HeatCor™ and a standard recuperator?
The HeatCor™ technology’s use of hollow channels and the resultant larger inner surface area results in an increase of up to 80% efficiency versus a standard ceramic recuperator.
How does PyroCor™ work?
PyroCor™ utilizes a specialized design and variable twists to optimize temperature uniformity in the radiant tube.
What are the material properties of Silit® and Amasic-3D™?
These infiltrated SiSiC high performance, non-porous ceramic materials can accommodate application temperatures of 1,380°C. They also offer excellent thermal strength properties.
What is the minimum wall thickness possible with Silit® and Amasic-3D™?
The thinnest possible wall thickness is approximately 4 mm with Silit® and 2 mm with Amasic-3D™.
What is the difference between Silit® SKD, Silit® SKD-H and Hexoloy®?
The key difference of Silit® SKD, Silit® SKD-H and Hexoloy® is the range of application temperatures which can be accommodated. Hexoloy® is 100% SiC while Silit® has a percentage of silicon in the matrix. This allows Hexoloy® to operate at temperatures exceeding 1,800°C.
Can ceramic radiant tubes be cantilever mounted?
Their high thermal strength allows all ceramic radiant tubes from Saint-Gobain Performance Ceramics & Refractories’ to be cantilever mounted.
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