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High Temperature Thermocouple with 316 Stainless Steel Head

High Temperature Metal Sheathed Thermocouples (Type 27)

Send Enquiry Request Info Data Sheet

These high temperature thermocouples are used in applications where other thermocouples would fail due to excessive heat or severe environments. Utilising specialist exotic sheath materials such as Platinum 10% Rhodium, Molybdenum and Tantalum they can be used in service temperatures up to 2300°C. The combination of conductor, insulation material and sheath must be carefully selected to suit your process environment, service temperature and installation requirements (i.e. whether the probe is flexible or not). Our experienced sales team are on hand to assist where needed, so please do not hesitate to contact us if help is required.

Typically used with high temperature thermocouple types R, S, B, C and D
Temperatures up to 2200°C (continuous use) or 2300°C (short term use)
Semi-Rigid (mineral insulated) and Rigid (tube) styles available
Terminated in a 316 Stainless Steel standard terminal head
Calibration service for oxidizing and inert environments is available up to 1600°C

Code	Sheath Material	Operational Properties	MI (Semi-Rigid) Tube (Rigid)	Insulation Material	Thermocouple Types	Available Sheath Diameters (mm)	Max. Continuous Temperature
600	Inconel 600^®	Suitable for use in inert, vacuum and oxidizing environments. Minimum bend radius: 5 x sheath diameter. Not recommended for use above 800°C in oxidising atmospheres. Do not use in sulphur bearing atmospheres above 550°C.	Semi-Rigid	MgO	R, S and B	1.0mm, 1.5mm, 3.0mm, 3.2mm, 4.8mm, 6.0mm and 6.4mm	1175°C
600T	Inconel 600^®	As above. Do not bend.	Rigid	Al₂O₃	R, S and B	3.0mm, 3.2mm, 4.8mm, 6.0mm and 6.4mm	1175°C
P10R	Platinum 10% Rhodium	Suitable for use in inert and oxidizing environments. Minimum bend radius: 10 x sheath diameter.	Semi-Rigid	MgO	R, S and B	1.0mm, 1.5mm and 1.6mm	1550°C
TAN	Tantalum	Suitable for use in inert and vacuum environments. Minimum bend radius: 5 x sheath diameter.	Semi-Rigid	MgO, Al₂O₃, HfO₂	R, S, B, C and D	1.0mm, 1.5mm, 1.6mm, 3.0mm and 3.2mm	2200°C
NIO	Niobium 1% Zirconium	Suitable for use in inert and vacuum environments. Minimum bend radius: 10 x sheath diameter.	Semi-Rigid	MgO, Al₂O₃, HfO₂	R, S, B, C and D	1.6mm and 3.2mm	2200°C
MOL	Molybdenum	Suitable for use in inert, vacuum and reducing environments. Do not bend.	Rigid	MgO, Al₂O₃, HfO₂	R, S, B, C and D	1.5mm, 1.6mm, 3.0mm, 3.2mm, 4.8mm, 6.0mm and 6.4mm	2000°C
CMOL	Coated Molybdenum	Suitable for use in inert and oxidizing environments. Do not bend.	Rigid	MgO, Al₂O₃, HfO₂	C and D	1.5mm, 1.6mm, 3.0mm, 3.2mm and 6.4mm	1600°C

High Temperature Thermocouple Enquiry Form

1. Thermocouple Type

2. Sheath Material (see above)

3. Insulation Material

4. Sheath Diameter

5. Sheath Length

mm

6. Types of Sensing Junction

Illustration	Select
INSULATED Junction
GROUNDED Junction
Duplex Element Required? (please tick box)

7. Quantity Required

Qty Required

Contact Details

Company Name

Your Name

Title/Dept.

Email

Telephone

Additional Information

If your enquiry is for more than one style of sensor, please email us with your requirements or use the box below

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1	Thermocouple Type	Temperature Range (continuous)	Temperature Range (short term)
R	Platinum - 13% Rhodium vs Platinum	0°C to +1600°C	-50 to +1750°C
S	Platinum - 10% Rhodium vs Platinum	0°C to +1550°C	-50 to +1700°C
B	Platinum - 30% Rhodium vs Platinum 6% Rhodium	+100 to +1600°C	+100 to +1820°C
C	Tungsten - 5% Rhenium vs Tungsten - 26% Rhenium	0 to +2200°C	0 to +2300°C
D	Tungsten - 3% Rhenium vs Tungsten - 25% Rhenium	0 to +2200°C	0 to +2300°C
Temperature ranges refer to the thermocouple type. The temperature range of the sensor may deviate from the above, please refer to the product description for more details

2	Insulation Material	Comments	Max. Temperature
MGO	Magnesium Oxide MgO	Very hygroscopic. Used mostly in compacted sheaths.	1700°C
ALO	Aluminium Oxide Al₂O₃	Excellent with Platinum alloys.	1550°C
HFO	Hafnium Oxide HfO₃	Comparible to Berylium Oxide and safe to handle.	2200°C