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Shanghai Gongtao Ceramics Co., Ltd.

Si3n4 Protection Pipe, Si3n4 Bonded Protection Pipe, Si3n4 Bonded Sic Tube manufacturer / supplier in China, offering High Pure 99% Si3n4 Silicon Nitride Thermocouple Protection Tube, Ceramic Spring Tension, Titanium Oxide Ceramic Eyelet and so on.

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Supplier Homepage Product Ceramic tube SiC tube High Pure 99% Si3n4 Silicon Nitride Thermocouple Protection Tube

High Pure 99% Si3n4 Silicon Nitride Thermocouple Protection Tube

FOB Price: US $1 / Piece
Min. Order: 2 Pieces
Min. Order FOB Price
2 Pieces US $1/ Piece
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Port: Shanghai, China
Production Capacity: 500000 PCS Per Year
Payment Terms: L/C, T/T, Western Union, Money Gram

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Basic Info
  • Model NO.: GT-301
  • Feature: Long Time Materials
  • Shape: Pipe
  • Content: Silicon Nitride (23%) and Silicon Carbide(75%)
  • Color: Grey
  • Application: Resist Corrosion and Scouring,Be No Polluted
  • Trademark: shangtao
  • Specification: Rohs
  • HS Code: 6903900000
  • Refractoriness (℃): 1770< Refractoriness< 2000
  • Type: Refractory Material
  • Material: Si3n4 Bonded Sic
  • Size: Od 10
  • End: Oec or Beo
  • Finish: Collar, Slot, Curve
  • Transport Package: Plywood Case
  • Origin: Shanghai, China
Product Description
High pure 99% Si3N4 Silicon Nitride Thermocouple Protection Tube

High pure si3n4
Silicon nitride ceramics is a new modern engineering materials with high strength, high hardness, strong corrosion resistance, high temperature resistance, and many other excellent performance, widely used in metallurgy, chemical, mechanical and aerospace and other fields.
   Main Products: silicon nitride (Si3N4) industrial pump mechanical seal rings. Various shafts, bushings, the plunger, cylinder liner, bearing and other types of products. Thermocouple sheath pipes, gas flow pipe blast pipe ect,and other mechanical parts, blades, nitride powder ( which are corrosion resistance, wear resistance, high temperature resistance).
   Silicon nitride protection tube is widely used in metal casting industry, especially in the aluminum industry, its performance is more superior than the silicon carbide protection tube!

Our silicon nitride thermocouple protection tube is produced by cold isostatic pressing (CIP) biscuit molding, then machined to exact dimensions, and then put into the high temperature reaction sintering furnace,sintering. With this modern and advanced technology,the special ceramic products have high density and uniform size and high precision. Silicon nitride have resistance of aluminum melting. It is particularly suitable as thermocouple protection tube for measuring the temperature of the molten aluminum.
  Our company is now producing silicon nitride thermocouple protection tubes according to customer requirements. Protection tube ID:6-30MM,OD:10-40MM: Length: within 800MM.

Property of si3n4
     Si3n4  reaction sinteringpressureless sinteringgas pressure sinteringhot pressed sintering
Bulk density g/cm32.5-2.63.22-3.243.24-3.263.24-3.28
Hardness HRA80-8890-9291-9292-94
rupture strengthRT180-220650-670750-800850-950
fracture toughness Mpa√m2.0-2.56-76-78-9
coefficient of thermal expansion 10-6/c2.8-2.853.0-3.23.0-3.23.2-3.4
Main componentSi3n4
sintering processgas pressure sintering
Bulk density,g/cm33.20
coefficient of thermal expansion 10-6/K3.20
Young modulus GPa300
Bending strength, MPa700
Fracture toughness, MPa.m1/26.0
Max working temperature C1000
thermal conductivity27
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