Tungsten-rhenium wire has room and high temperature strength, good ductility after recrystallization, the resistance rate is high, low resistivity, resistant to oxidation and carburization resistance, "water cycle response" capability and welding performance and good.

Tungsten-rhenium wire is powder metallurgy, machining and electrochemical machining pressure as the main technical expertise to wire with different characteristics, Rod, and products for the product, in order to create a single crystal sapphire as the main application areas, it is the tungsten industry system with high technological content and added value of a branch.

Tungsten-Rhenium Wire Introduction

Abbreviation: Tungsten Rhenium Wire for Sapphire
Tungsten-rhenium wire is a kind of tungsten and rhenium alloy composed of different proportions according to wire.

Common models are: W-3Re (rhenium-containing 3%) W-5Re (rhenium containing 5%) W-20Re (rhenium containing 20%) W-25Re (rhenium containing 25%) W-26Re (rhenium containing 26%)
Wherein the model W-25Re (rhenium-25%), 0.5mm diameter tungsten rhenium wire is widely used in the manufacture of single crystal sapphire.


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Tungsten-Rhenium Wire Performance Indicators

1Tungsten rhenium wire distribution of rhenium, rhenium content fluctuations within 30.15%;
2 Billet Weight 3Kg;
3To a diameter of 0.39mm, tungsten rhenium wire yield not less than 75%;
4Tungsten rhenium wire filament wire diameter evenly.

Tungsten-rhenium wire Packing: per roll 400-600g, per kilogram of 250m-260m. Vacuum packaging, coat cartons, bags.

Tungsten-rhenium wire Uses: used for color picture tubes hot wire, a variety of tube filament and gates.

1 Production of special requirements for filament, heat-sensitive components chromatography;
2 Heating wire is used for the manufacture of tubes and heating and TV camera tube;
3 For military electronic equipment.


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
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Rhenium Effect

Often the doped tungsten containing 3 to 5% of rhenium, tungsten rhenium wire is called, it can make an extension of the tungsten-brittle transition temperature drops to or below room temperature. This is a very strange rhenium effect, has not yet found one element can replace rhenium, tungsten produce the same effect.

Tungsten-Rhenium Alloy

Composed of tungsten and rhenium alloys. One for low-rhenium alloy containing less than 5% rhenium; another is a high-rhenium alloys, rhenium is 20% ~ 30%. Its preparation method and tungsten material similar to the main tube and the application of the special color cathode ray tube filament, require high strength and high ductility of the high temperature part, the low-rhenium alloy and a pair of high rhenium alloy can be used to measure the temperature of 1500 ~ 3000 ℃ thermal even. Instead of using the tungsten-rhenium thermocouple platinum-rhodium thermocouple can save precious platinum, rhodium and other metals. Rhenium is also scattered metal, fewer resources, more expensive, if not necessary, should be adopted without rhenium or less plus rhenium tungsten alloy.


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Once the use of tungsten at high temperature after recrystallization becomes very brittle and subject to shock or vibration in the case of easily broken. Some require high reliability in electric light source products, in order to prevent breakage of the filament, usually by adding rhenium doped tungsten, tungsten-rhenium wire known, rhenium alloy containing 1% to 5% (mass), in addition to mixed into the silicon, aluminum, potassium, to improve the high temperature properties of the material. It can make an extension of the tungsten-brittle transition temperature drops to or below room temperature.

Tungsten-Rhenium Wire Advantages

With room and high temperature strength, good ductility after recrystallization, the resistance rate is high, low resistivity, resistant to oxidation and carbonization, anti-"water cycle response" capability and welding performance and good.

Tungsten-Rhenium Wire Specifications: There WAl-1Re, WAl-3Re and WAl-5Re three kinds of grades

Tungsten-rhenium wire in addition, 25% Re and 26% Re two tungsten-rhenium alloy frequently used, mainly for thermocouple materials! Tungsten-rhenium thermocouples main strengths in: a fast response. 2, wide temperature range up to 2500 ℃. But is generally used in an inert atmosphere or a reducing atmosphere, or need to add protective casing, generally of Mo alloy casing!

Tungsten-rhenium wire standard configuration: W-3% Re Vs.W-25% Re; W-5% Re Vs W-26% Re are two types!


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
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