Thermocouple Type T | HB SPEICAL ALLOY

Type T (Copper/Constantan)

Type T is the most accurate thermocouple and has excellent corrosion resistance. Its temperature range is limited to 370°C and is good with wet gasses and moisture.

Chemical Composition, %

Type	Ni	Cu
TP	–	100
TN	45	55

Specification (IEC60584-1)

Type	EMF Versus Pt.67(mV)
Type	100℃	200℃	300℃
TP	4.229-4.325	9.238-9.334	14.792-14.932
TN	0.763-0.783	1.826-1.846	3.137-3.161
TP-TN	3.484-3.524	7.412-7.488	11.655-11.771

Physical and Mechanical Properties (RT, Annealed)

Type	Density, g/cm³	Melting Point, ℃	Tensile Strength, MPa	Elongation, %	Resistivity, μΩ.m
TP	9	1084	≥190	≥20	0.018
TN	8.9	1220	≥390	≥25	0.5

Features

Good resistance to oxidation
High EMS output
Good temperature accuracy, sensitivity an stability
In the temperature -200-0℃, it has better property, the year stability is less than ±3μV

Applications

Type T is also used for cryogenic applications. Because of its accuracy it is commonly used in the food industry where accurate measurements are very important.