Ceramic Protective cap

Basic Information
Place of Origin: YIXING, CHINA
Brand Name: FFTC
Certification: ISO9001:2008
Minimum Order Quantity: 100pcs
Price: Negotiation
Packaging Details: carton and wooden crate
Delivery Time: 3 - 4 weeks
Payment Terms: MoneyGram, T/T
Supply Ability: 1000000/year
Type: Ceramic Tubes Color: Gray
Application: Industrial Ceramic Material: Alumina Ceramic
Sample: Available Density: 3.2g/cm3
Bending Strength: 800 Working Temperature Max: 1400℃

Wear Resistant Silicon Nitride Ceramic Thermocouple Protection Tube for Sale



Silicon nitride ceramic thermocouple protection tube protects the sensitive thermocouple element from aggressive compounds in the furnace atmosphere. Due to their very good thermal conductivity, the accuracy of the thermocouple reading is increased.The silicon nitride ceramic has very high working temperature, up to 1200℃.It has good chemical resistance and good thermal conductivity for accurate metering.

Ceramic Protective cap 0Ceramic Protective cap 1



1. Long service life

2. Sintering: GPSN/RSSN (gas pressure sintering, reaction sintering)

3. Good abrasive resistance
4. Excellent thermal shock resistance
5. Top refractory
6. Reduced maintenance requirements and ease of maintenance
7. Anti-corrosion in the high-temperature
8. Perfect electrical insulation resistance
9. Customization available


Product Description

Silicon nitride ceramics characteristics and its low weight make silicon nitride an excellent material choice for demanding applications. This is why components made of silicon nitride ceramics are successfully used in various welding processes.

We can supply advanced technical ceramic part according to customer's drawings, samples and performance requirement

Bulk density Kg/m3 3.2×103
Water absorption % 0
Mechanical properties Vickers hardness load 500g (GPa) 13.9
  Flexural strength MPa 610
  Compressive strength MPa 3820
  Young's modulus of elasticity GPa 290
  Poisson's ratio - 0.28
  Fracture toughness MPa√m 5
Thermal characteristics Linear thermal expansion coefficient 40-400℃ ×10-16/℃ 2.6
    40-800℃   3.2
  Thermal conductivity W/(m·K) 20
  Specific heat J/(kg·K) 0.66×103
  Thermal shock resistance(Put into the water) 550
Electrical characteristics Dielectric strength V/m 10×106
  Volume resistivity 20℃ Ω·cm >1014
    300℃   1012
    500℃   1010
  Dielectric constant (1MHz) - -
  Dielectric loss angle (1MHz) (×10-4) -
  Loss factor (×10-4) -
Chemical properties Nitric acid (60%) 90℃

WT Loss


  sulfuric acid (95%) 95℃   0.40
  Sodium hydroxide (30%) 80℃   0.36



Packing and Delivery

We pack our goods in wooden case.

We send goods by Sea/Air/Express timely and saftely.

Ceramic Protective cap 2



Contact Details