Wolfram Rhenium thermocouple wire  

WRe3/25        WRe5/26

(Note:The default wire diameter is 0.5mm)


if you need other size(diameter and length),
pleas contact us,we can custom-made any size that you need,
 we will send out your order within 2 days!
other diameter: 0.05mm , 0.1mm, 1mm, 1.5mm, 2mm, etc.
length: any length

Characteristics：
Tungsten Rhenium thermocouple Wire melting point: 3,120-3,360 ℃, can be used up to 3,000 ℃, it is the most high temperature resistant metal thermocouple.
It has high thermoelectric potential, high sensitivity, insoluble in any independent acid.

The name and the score number:
1. Name: Tungsten rhenium 3-tungsten rhenium 25; Tungsten rhenium 5-Tungsten Rhenium 26
2. Score number: WRe3-Wre25; Wre5-Wre26

Parameters: 

Grade

Specifications (￠m)

Usage temperature range

Allowable error

Special

0.1

1400-1800 ℃

≤±0.128%

Ⅰ

0.1, 0.25, 0.5

1200-1800 ℃

≤±0.25%

Ⅱ

0.1, 0.25, 0.5

1200-1800 ℃

≤±0.50%

Ⅲ

0.25,0.5

0-400 ℃

400-2,300 ℃

≤±4℃

≤±1%



Description:
  1. The positive electrode is WRe3 red; negative electrode is Wre25 blue.
  2. Score point: When cold end is 0 ℃, hot end score is 100, 1000, 1200, 1400, 1600, 2000℃. (For higher requirements, please contact us). ￠0.1mm wire with 1554 ℃ Palladium fixed point calibration.  Using pure platinum wire 1769 ℃ calibration for form experiments.
  3. Uniformity: at 1200 ℃, uneven potential  of unipolar head to tail is ≤±40 micro-volt.
  4. Flexibility: The filament, after stable annealing, can be self-winding six laps not to break.
  5. Hot Spot Welding method: slightly heat the positive and negative pole together with pliers clamped on the alcohol lamp, tighten 3-5 laps, welding with argon arc into spherical.
  6. Tungsten Rhenium thermocouple bare wire can only be used in vacuum, argon and inert atmosphere for a long time; in the oxidation atmosphere need to be armored or with impermeable high-temperature protection tube to isolate the air for long-term use.
  7. Storage mode: Filament is packaged with waterproof and moisture-proof packaging bag. For long-term preservation, it should be placed in a glass drying cylinder equipped with silicone desiccant.
  • Shipping:
  • Your items will be shipped out Within 2 days after you place the order. 
  • Make sure to provide sufficient information to help us make a smoothly delivery. Please attached your telephone number (only for shipping purposes) and physical addreaa(No P.O.Box address) when you pay, so that we can post your package safety and smoothly.