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Silicon Nitride Thermocouple Protection Pipe

Silicon Nitride Thermocouple Protection Pipe

Silicon Nitride Thermocouple Protection Pipe introduction 1.Si3N4 material can be widely used as the main material of protection tubes for thermocouple, for long working life and free maintenance. 2.As the necessary means of measuring temperature, thermocouple protection tubes are applicable in...

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Silicon Nitride Thermocouple Protection Pipe introduction 

1.Si3N4 material can be widely used as the main material of protection tubes for thermocouple, for long working life and free maintenance.
2.As the necessary means of measuring temperature, thermocouple protection tubes are applicable in metallurgical industry, such as aluminum, tin, lead, zinc etc. 

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Si3N4 thermocouple protection tube with K type 

Si3N4 material can be widely used as the main material of protection tubes for thermocouple, for long working life and free maintenance.

Charcteristics of silicon nitride riser tube

Item

Material

Unit

Silicon Nitride

Bulk density

g/cm3

3.2

Water absorption

%

0

Flexural strength

MPa

750

Young's Modulus of Elasticity

Gpa

280

Fracture Toughness

MPa・m 1/2

6.5

Poisson's Ratio

_

0.28

Vickers Hardness

Gpa

13

Coefficient of Linear Thermal   Expansion

×10-6/℃

3.4

Thermal Conductivity

W/(m・k)

30

Specific Heat

J/(g・k)

0.65

Volume Resistivity

Ω・cm

>1014

Heat Shock Resistance

800

Maximum Available Temperature

1200

OUR SERVICE

1.Free on-site touring and introduction of our factory.

2.We provide process design and validation for free.

3.We can guarantee on-time delivery of samples and goods.

4.Close follow-up of all orders by special person and keep customers informed timely.

5.All after-sale request will be responded in 24 hours.

Si3N4 thermocouple protection tube Advantages 

1. Moulding: Cold isostatic pressing(CIP)

2. Sintering: GPSN/RSSN

3. High strength and good compactness

4. Low thermal expansion coefficient

5. Excellent thermal shock resistance

6. No wetting by molten aluminum and non-ferrous metal

7. Good corrosion resistance

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