Tungsten Rhenium Alloys - Plate, Rod, Bar, Wire, Tube

Tungsten Rhenium Alloy

Tungsten has many excellent properties such as high melting point, high density, high recrystallization temperature, good high-temperature conductivity, thermal shock resistance, ablation resistance, etc. However, tungsten has poor room temperature plasticity and the plasticity-brittleness transition temperature is as high as 150~450°C. It is difficult to achieve cutting processing and cold deformation at room temperature, but rhenium has a high melting point, large elastic modulus, no brittle transition temperature, and excellent tensile strength, creep limit, durable strength and thermal shock resistance. Adding rhenium to tungsten, due to the "rhenium effect", the tungsten-rhenium alloy has a series of excellent properties, such as high melting point, high hardness, high strength, high plasticity, high resistivity, high thermoelectric potential value, and high recrystallization temperature , low vapor pressure, low electron work function and low plastic-brittle transition temperature, etc., it is one of the alloys with the best comprehensive properties among tungsten alloys at present. It is used in cutting-edge scientific and technological fields such as aerospace, nuclear industry, electronics industry, and medical treatment. It has broad application prospects.

AEM Metal has long been focusing on the research and development of tungsten-rhenium and molybdenum-rhenium alloy materials. In addition to the high-performance tungsten-rhenium alloy wires that meet the conventional applications in the above-mentioned industries, AEM Metal has also developed tungsten-rhenium that is more technically difficult and has more demanding application scenarios and working conditions. There are many series of alloy rods, plates, pipes, special shapes, etc. to meet the applications of higher-end aerospace, semiconductor, friction stir welding and other industries.

Tungsten Rhenium Alloy List

Products Name	Main Type	Main Spec.(mm)
WRe Thermocouple Wire	WRe3/25, WRe5/26	Φ0.1, Φ0.2, Φ0.25, Φ0.3, Φ0.35, Φ0.5
WRe Alloy Wire	WRe3%, WRe5%, WRe25%, WRe26%	Φ0.1, Φ0.2, Φ0.25, Φ0.3, Φ0.35, Φ0.5
Sheathed WRe Thermocouple	WRe3/25, WRe5/26	Used in a vacuum, hydrogen, and inert gases with a working temperature range of 0-2300℃
WRe Rod/Bar	WRe3%, WRe5%, WRe25%, WRe26%	Φ1-Φ35
WRe Alloy Sheet/Plate	WRe3%, WRe5%, WRe25%, WRe26%	0.2min x (10-350) x 600 max
WRe Alloy Target	WRe3%, WRe5%, WRe25%, WRe26%	Customized as per requirements
WRe Alloy Tube	WRe3%, WRe5%, WRe25%, WRe26%	Customized as per requirements

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Tungsten Rhenium Alloy Properties

		W	W-3Re	W-25Re	W-26Re	Re
Melting Point (℃)		3410	3360	3100	2950	3170
Density (g/cm3)		19.3	19.4	19.65	19.66	21.02
Resistivity	20 ℃	5.5	9.7	27.9	29.6	19.8
(uΩ.cm)	1000 ℃	36.2	37.8	54.7	55.5	62.0
	1500 ℃	52	53.5	68.5	70.6	82.0
	2000 ℃	66.0	69.0	82.0	85.0	150.0
Microhardness (MPa)	Machined	3423-3923	3923-4325	5394-7845	5394-7845	4903-7845
Microhardness (MPa)	1000 ℃ annealed	834	2844-3040	3579-3678	3678-3776	1412
Tensile Strength (MPa)	Machined	1950	3300	2400	2410	2256-2452
	1400 ℃ annealed	1650	1750	1950	1970
	1600 ℃ annealed	1200	1620	1810	1800
	1800 ℃ annealed	850	1420	1600	1620
Elongation (%)	Machined	1-2	1-2	2-3	2-3	1-2
	1400 ℃ annealed	1-2	2-3	15-20	15-20	20-25
	1600 ℃ annealed	1-2	5-10	18-22	18-22	18-20
	1800 ℃ annealed	1-2	10-15	17-19	17-19	10-15
Recrystallization Rate		1100	1500	1800	1780	1500

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Manufacturing Process of WRe alloy

Powder Preparation

Mixing Alloy

Compaction

Sintering

HIP

Machining and Processing

Quality Assurance

Powder Preparation: The first step involves preparing tungsten and copper powders. The powders must meet specific purity and particle size requirements. High-quality raw materials contribute to the alloy's final properties.

Mixing Alloy: Tungsten and Rhenium powders are carefully blended in precise proportions to achieve the desired alloy composition. The blending process is crucial for uniform distribution of the powders.

Compaction: The blended powder mixture is subjected to compaction, where it is pressed into a green compact or preform. Compaction is typically achieved using hydraulic presses, which apply high pressure to form the desired shape.

Sintering: The green compacts undergo sintering, a process where they are heated to high temperatures in a controlled atmosphere, often in a vacuum or inert gas environment. During sintering, the tungsten and rhenium particles bond together, forming a dense, solid mass.

HIP: In some cases, the sintered WRe alloy may undergo hot isostatic pressing (HIP). This additional step involves subjecting the material to high temperature and pressure in a gas pressure vessel to further densify the structure and remove any remaining porosity.

Machining and Processing: The sintered and optionally HIP-treated WRe alloy is machined to achieve the final dimensions and surface finish required for the specific application. Precision machining techniques are employed to ensure tight tolerances and smooth surfaces.

Quality Assurance: Throughout the manufacturing process, rigorous quality control measures are implemented to ensure the alloy meets specified standards. This includes inspections of raw materials, monitoring of compaction and sintering parameters, and post-production testing to verify mechanical and metallurgical properties.

Tungsten Rhenium Alloy

1. Aerospace high-temperature structural materials: heat shields, rocket nozzle peripheral parts, cone parts, engines or engine parts coatings.

2. The tungsten-rhenium alloy container and UO2 are heated to 2000°C without reaction and are used as crucible materials for refining uranium.

3. Tungsten-rhenium alloy is used in the heating elements and heat shields of high-temperature furnaces, crucibles for evaporating high-purity metals, and springs, screws, nuts, support rods and connecting rods in high-temperature fields.

4. High temperature thermal field components for MOCVD semiconductor equipment: The heating components in MOCVD equipment need to heat up and cool down rapidly, and the operating temperature can reach up to 2000°C. Compared with pure tungsten or potassium tungsten materials, the use of tungsten-rhenium alloy has a longer service life and less frequent replacement, and the equipment production efficiency has also been greatly improved. Tungsten-rhenium alloy wire can also be used as a bracket for the heater because of its good elongation.

5. WRe thermocouple wire: Low-rhenium alloy wire and high-rhenium alloy wire are matched to form a thermocouple for temperature measurement. It has a wide temperature measurement range (0 ~ 2500°C), high thermoelectric potential value, fast response speed, and good corrosion resistance. Therefore, tungsten-rhenium thermocouple wire is widely used in temperature measuring instruments. It is not only used in vacuum, reducing atmospheres and inert atmospheres, but also because its price is much lower than precious metals such as platinum and rhodium. When the temperature measuring sleeve has adequate anti-oxidation measures, in an oxidizing atmosphere, tungsten-rhenium thermocouples can also be used to replace expensive platinum-rhodium thermocouples for temperature measurement.

FAQs About WRe Alloys

What is a Tungsten Rhenium (WRe) alloy?

Tungsten Rhenium (WRe) alloy is a composite material consisting of tungsten (W) and rhenium (Re). It combines the unique properties of both elements to create a high-performance alloy with exceptional strength, ductility, and resistance to extreme temperatures.
What are the key properties of WRe alloys?

WRe alloys exhibit high temperature resistance, excellent mechanical strength, low thermal expansion, and superior thermal conductivity. These properties make them suitable for applications in aerospace, electronics, scientific research, and other industries.
How are WRe alloys manufactured?

The manufacturing process typically involves blending tungsten and rhenium powders, compacting the mixture, sintering at high temperatures, and optionally subjecting the material to hot isostatic pressing (HIP) for further densification. Precision machining and quality control measures are then applied to produce the final product.
Are WRe alloys environmentally friendly?

Tungsten and rhenium are stable and non-toxic metals, making WRe alloys environmentally friendly. However, the manufacturing process may involve energy-intensive procedures, and proper disposal of waste materials is essential to minimize environmental impact.
Are there any safety considerations when working with WRe alloys?

While WRe alloys are generally safe to handle, precautions should be taken when machining or processing the material to avoid exposure to airborne particles or dust. Proper ventilation and personal protective equipment (PPE) should be used as necessary.
How to purchase tungsten rods from AEM Metal?

Just send us inquiries, our team will prepare an official quote for you. If you are satisfied with our products and quotes, you can send us PO or we will send you PI for purchasing.
What are the common applications of WRe alloys?

WRe alloys are used in aerospace engineering for rocket nozzles, turbine blades, thrust vector control systems, and thermal protection systems. They are also utilized in electronics, medical devices, energy exploration, and scientific instrumentation.
What sets WRe alloys apart from other materials?

WRe alloys offer a unique combination of high temperature resistance, mechanical strength, and thermal conductivity. They excel in applications where materials must withstand extreme conditions and maintain performance under stress.
Can WRe alloys be customized for specific applications?

Yes, WRe alloys can be customized by adjusting the composition, microstructure, and processing parameters to meet the requirements of specific applications. This customization ensures optimal performance and reliability in various industries.
How do I select the right WRe alloy for my application?

The selection of the right WRe alloy depends on factors such as operating temperature, mechanical requirements, and environmental conditions. Consulting with material experts and conducting thorough testing can help determine the most suitable alloy for your specific needs.
What are the shipping methods?

We use UPS or DHL or FedEx express for most of countries. Please let us know if you have their account number. We can ship the items out by using your account number. We use IPS express for Iran, Iraq and UAE. We will by sea or air if the weight or volume is large.
What are the payment methods?

Bank Wire Transfer: Direct bank transfers are a secure and widely used method. Details for wire transfers will be provided on the invoice.

PayPal: For added flexibility, PayPal payments are often accepted. This option is ideal for those who prefer online payment gateways.

Letter of Credit (L/C): In certain cases, we may accept payment through a letter of credit, offering a secure method for international transactions.

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Tungsten Rhenium Alloy

Tungsten Rhenium Alloy

Tungsten Rhenium Alloy List

Tungsten Rhenium Alloy Properties

Manufacturing Process of WRe alloy

Tungsten Rhenium Alloy

FAQs About WRe Alloys

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