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Silicon Nitride Thermocouple Protection Tube For Low Pressure Casting - China

price: contact company for price

Silicon Nitride Thermocouple Protection Tube

Product Description

Thermocouple’s long- time stability and service life will be up to outside protection tube. Thermocouple shielded by silicon nitride thermocouple sheath will quickly react to temperature due to its good thermal conductivity and thinner wall thickness. Silicon nitride thermocouple protection tube is for continuous temperature measurement and protect thermocouple without erosion.

Physical and chemical index


Density >3.2g/ cm3 >2.4g/ cm3

Si3N4 content >92% >92%

Flexural strength >600Mpa >200Mpa

Compressive strength >1500Mpa

Thermal conductivity( W/ mk) 16- 22 14

Porosity 0 <15%

Thermal expansion coeff. ( RT- 1000℃) 3.2 2.8

Max temperature

In air 1400℃ 1150℃

Hardness( HRA) >92 >85


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

Recommended Sizes

OD( mm) ID( mm) Length( mm)

16 8 300- 600

22 12 300- 800

28 16 300- 900

30 18 300- 900

45 25 300- 900

We can also prodcue other sizes according to your drawing.

Company Contact:

  • Phone: 8618253372068

  • Address: Zibo City, Shandong Province, China, Zibo, China

  • Email: Email

Published date: November 10, 2015 -

  • Business Description: Zibo Guiyuan Taisheng Advanced Ceramic Co., Ltd which invested by

    Shandong Guiyuan Advanced Ceramic Co., Ltd and Zibo Taisheng Industry

    & Trade Co., Ltd focus on the research, manufacture and sale of

    technical ceramic.

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