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

Types GPSN RSSN

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 92 >85

Features

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.