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Quick Details

  • Place of Origin: Henan, China (Mainland)
  • Shape: Pipe
  • Material: silicon nitride
  • SiO2 Content (%): 0
  • Al2O3 Content (%): 1%
  • MgO Content (%): 0
  • CaO Content (%): 0
  • Refractoriness (Degree): Common (1580°< Refractoriness< 1770°)
  • CrO Content (%): 0
  • SiC Content (%): 0
  • Model Number: 28/16, 22/12, 16/9
  • Brand Name: STA
  • Color: Gray
  • working life: 12 months
  • Density: 3.3 g/cm3

Packaging & Delivery

Packaging Details exporting wooden box
Delivery Time 10 days

China Super quality Silicon Nitride Thermocouple Protection Tube sheath are usually made by CIP (cold isostatic pressing) / RB(reaction bonded), both are have excellent abrasion resistance and corrosion resistance and can be used under 1400°C . 

Application of Silicon Nitride Thermocouple Protection Tube: Temperature control. 
Silicon nitride thermocouple protection tube is responsible for the precise and reliable temperature in aluminum industry. Silicon nitride is the ideal material to measure the temperature for liquid aluminum. 

Other product made of Si3N4 : 
Silicon nitride powder 
Silicon nitride riser tube 
Silicon nitride thermocouple protection tube 
Silicon nitride protection tube

 

 

Silicon nitride ceramic material with high thermal stability ,antioxidant ability,and product size excellent performance. Reaction bonded silicon nitride is made by direct nitridation of a compacted silicon powder, and because of the difficulty of ensuring complete reaction; it is hard to achieve a high component density. Usual densities are in the range 2.3 – 2.5g/cm3 compared with 3.29g/cm3 for gas pressured sintered silicon nitride. The higher density gives the HPSN, SSN & GPS-SSN materials better physical properties and means they are used in more demanding applications at very high temperature, especially for non-ferrous molten metal handling and thermocouple sheaths. The nitridation produces only a small volume change, which means that RBSN components do not need to be machined after fabrication and complex near net shapes can be produced in a single process stage.Key PropertiesApplications exploit the following properties of silicon nitridelow densityhigh temperature strengthsuperior thermal shock resistanceexcellent wear resistancegood fracture toughnessmechanical fatigue and creep resistanceExcellent non-wetting property with good oxidation resistance

 

 

 

Property

SSN GPS-SSN HPSN RBSN

Density (g.cm-3)

3.28 3.30 3.23 2.5

Young’s Modulus (GPa)

285 320 315 189

Bend Strength (MPa)

675 750 850 440

Fracture Toughness K1c (MPa.m0.5)

6 7 8 2.5

Hardness (GPa)

16 16 16 7.2

Thermal Expansion Coefficient (x 10-6/°C)

3.2 3.2 3.2 3.2

Thermal Conductivity (W/m.K)

25 30 30 14

Maximum Temperature (°C) for applicationDielectric ConstantAbrasive Wear resistance Parameter

1150 1150 1150 11009 9 9 7.51110 1130 1120 360

 

Welcome to choose our  Silicon Nitride Thermocouple Protection Tube:

 

 

 

 

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