- Materials
- Forms
- Reference Materials
-
Services
-
Services
-
-
Sectors
-
Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity metals and alloys in various forms and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate your innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Your requirements for unique products and attributes will be met across our 170,000+ product range and customization capabilities.
High-quality materials across branded products in various forms including rods, wires, and foils support space technology needs.
Highest quality materials to support your need for small-quantity specialist materials such as graphite and lithium compounds.
High purity materials to improve the reproducibility and reliability of your evaporation processes.
Academia Aerospace & Aeronautical Automotive Chemical Manufacturing Electronics and Bioelectronics Fuel Cells & Hydrogen Life Science and Biomaterials Storage & Batteries Vacuum Technology Mining and Metals Nanomaterials Nuclear Oil & Gas Optics Packaging Research & Labs Space Technology Medical Devices
-
- Brands
-
Resources
-
Find out our latest news.
Read our latest insights, and opinions.
Discover our Innovation Discovered podcasts on innovation, products, interesting topics, and more.
Find out how we've worked with our partners
Our latest updates on what we are doing, find out more.
Find out more about us and the great roles we have available for talented individuals. Find out more.
Take a look at our global distributors.
Explore our FAQ resource to help answer your key questions.
Gain a clearer picture of the language used in scientific study
-
- About Us
Toggle Nav
Formula: Ta 97.5/W 2.5
Form: Foil/Film/Sheet
Material: Tantalum/Tungsten
Commodity: Alloys
Temper:
As Rolled
Tantalum Tungsten Alloy Foil (Ta97.5/W2.5) delivers outstanding resistance to corrosion, excellent ductility, and enhanced thermal stability in a thin metallic sheet engineered for high-performance environments. The tungsten addition increases strength and creep resistance without sacrificing formability, enabling use in high-temperature seals, precision shims, and chemically inert linings in demanding aerospace, semiconductor, and chemical processing systems. It is valued in applications such as furnace insulation barriers, corrosion-resistant diaphragms, and as a base layer in advanced coating technologies. In research, Ta97.5/W2.5 foil is used for thin-film deposition substrates, electrochemical electrode fabrication, and structural materials testing under extreme conditions. This alloy’s synergy of toughness, thermal endurance, and chemical stability in foil form makes it a reliable choice for both industrial and scientific innovation.
Tolerances
Foil
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±25% |
| Thickness | >0.05mm | ±10% |
Material Properties for Alloys
Mechanical Properties
| Element | Value |
|---|---|
| Elongation at break( % ) | <20 |
| Modulus of elasticity( GPa ) | 186 |
| Hardness - Vickers( kgf mm⁻² ) | 115-160 |
| Tensile strength( MPa ) | 240-310 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 3014 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 141@23°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 55@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 6.48@20-500°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 16.66 |
Other Customers Purchased
-
Nickel/Iron/Molybdenum Alloy Foil (Ni80/Fe15.5/Mo4.5) Formula: Ni80/Fe15.5/Mo 4.5
Temper: Annealed
Thickness: 1mm
Length 1: 100mm
Length 2: 100mm
UOM Code: 686-497-48
eachStarting at $123.00
Discounts applied for volume purchases -
Titanium Dioxide Sheet Formula: TiO₂ 99.6%
Thickness: 2mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 13463-67-7
UOM Code: 625-195-31
eachStarting at $690.00
Discounts applied for volume purchases -
Nickel/Iron/Molybdenum Alloy Foil (Light Tight) (Ni80/Fe15.5/Mo4.5) Formula: Ni80/Fe15.5/Mo 4.5
Temper: Annealed
Thickness: 1mm
Length 1: 50mm
Length 2: 50mm
UOM Code: 016-589-98
eachStarting at $369.00
Discounts applied for volume purchases -
Vespel® SP1 Polyimide Film Grade: Vespel® SP1
Formula: PI
Thickness: 9.525mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 60842-76-4
UOM Code: 172-767-75
eachStarting at $261.00
Discounts applied for volume purchases -
Tantalum/Tungsten Alloy Rod (Ta90/W10) Formula: Ta90/W 10
Diameter: 1.5mm
Length: 200mm
Temper: Annealed
UOM Code: 220-085-07
eachStarting at $295.00
Discounts applied for volume purchases -
Tantalum/Tungsten Alloy Rod (Ta97.5/W2.5) Formula: Ta97.5/W 2.5
Diameter: 2.5mm
Length: 100mm
Temper: As Drawn
UOM Code: 157-466-21
eachStarting at $227.00
Discounts applied for volume purchases
