Silicon carbide ceramic finned radiant tubes 

Open tube systems have been used for many decades, primarily for tempering furnaces. The recuperative burner systems, however, are relatively new.
Finned radiant tubes offer a larger surface area considerably improving their heat efficiency and distribution.
Because the fins are thread-shaped, an optimum flame distribution from the burner tip to the tube exit is achieved.

Further advantages of Si / SiC radiant tubes are:
•    durability and reliability at temperatures up to 2480°F / 1380°C
•    outstanding resistance against:
- thermal shock
- overheating
- oxidization
- carburizing
- creep elongation
- corrosive atmospheres
- vibration
- magnetizing
- residues of detergents

Reaction-bonded silicon carbide heat exchange tube, reaction-bonded silicon carbide radiant tube inner tube and outer tube assembly, applied to heat radiation indirect heating system. Reaction-bonded silicon carbide heat radiation indirect heating system is applied to some industrial furnaces, such as roller furnace, bogie furnace, etc. in such industries as steel and iron, stainless steeland non-ferrous metals.

Rbsic (sisic) radiation tubes have superior characteristic such as corrosion resistance, high temperature tolerance, oxidation resistance, superior thermal conductivity, bending strength, long time service life, etc. They are also very efficient, energy-saving, enviromental protection in the field of industrial production.

The series of radiation tubes are widely used in the annealing production lines for industries of steels and metallurgies. They are also used for heat conduction system and radiant system under the conditions of high temperature, high corrosion and high wear resistance.