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Bismuth Tin Lead Indium Cadmium Antimony Zinc
Nickel Copper Aluminium Molybdenum Tungsten Rehnium Tantalum


Siliconised Silicon Carbide Tubes


he composite radiant tubes (CRTs) discussed here are based on silicon and silicon carbide. They can be used in most atmosphere heat treating furnaces in place of conventional metal alloy and mullite radiant tubes


Bulk density (g/cm³) 2.85
Apparent porosity (Vol.%) 0
Modulus of rupture (MPa) 78
Compressive strengths (MPa) 580
Vickers hardness (MPa) SiC 25.000
Si 9.000
Thermal expansion coefficient20°-1000°C (1/°C) 4.2 x 10-6
Thermal conductivity (W/mK) 100°C 1280°C 160
Specific heat (J/kgK) RT 1280°C 600
Limit of application (°C) 1340


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