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Tungsten Rhenium Thermocouple In Temperature Instruments

Description

Tungsten Rhenium thermocouple in Temperature Instruments is used for type C.

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      Tungsten Rhenium thermocouple in Temperature Instruments


WRe3/25, WRe5/26 alloy thermocouple wire by spray drying milling process to improve uniformity and performance of processing, mechanical and thermal, all technical performance reach the world advanced level. 


Alloy Combination

Tolerance Class

Temp Range

()

Diameter
  (mm)

Environment Bare wire

+Lead

-lead

Grade

Tungsten-5%Rhenium

(W-5%Re)

Tungsten-26%Rhenium
  (W-26%Re)

I

0-2300

0.08-0.5

Vacuum,
  Inert, Hydrogen

II

0-2300

Tungsten-3%Rhenium
  (W-3%Re)

Tungsten-25%Rhenium
    (W-25%Re)

I

0-2300

0.08-0.5

Vacuum,
  Inert, Hydrogen

II

0-2300

II

0-2300

 

        Chemical composition for Tungsten Rhenium thermocouple in Temperature Instruments

 

Grade

Chemical composition %

W

Re

WRe3

97

3

WRe25

75

25

 

        Normal diameter and tolerance

 

Grade

WRe5-WRe26

Diameter (mm)

0.25mm. 0.35mm, 0.5mm, 1.0mm

Tolerance (mm)

±0.02

 

        Temperature measuring tolerance

 

Thermocouple type

Temperature range()

Tolerance

WRe3/25

WRe5/26

0~400

4.0

400~2300

±1%t

 

        Density and resistivity at 20

 

Type

WRe3

WRe25

WRe5

WRe26

Density(g/cm3)

19.16

19.58

19.2

19.6

Resistivity(μohmcm)

0.0929

0.2667

0.1206

0.3012


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