Tungsten Foil and Strip (Tungsten Tape)
Princeton Powder is a top supplier of high-purity tungsten strips and foils in the United States, provides high-purity tungsten tape, meeting ASTM B760 standards and available in multiple thicknesses and widths. Our tungsten foil and strip deliver are for sale at a competitive price.
Material | Tungsten Foil and Strip |
CAS Number | 7440-33-7 |
Standard | ASTM B760, ASTM B521 |
Purity | 99.5% – 99.95% |
| Density | 19.3 g/cm3 |
Melting Point | 3.422 ℃ |
Dimensions | Customized |
Surface Treatment | Pickling or Polishing |
Description of Tungsten Foil and Strip
Tungsten foil and strip are thin, flexible forms of tungsten, known for their exceptional heat resistance, high density, and durability. These materials are available in both pure tungsten and tungsten alloys, making them suitable for demanding applications across aerospace, medical, nuclear, and electronics industries. Tungsten foil is typically produced through rolling and annealing processes to achieve precise thickness and a smooth, defect-free surface. Common applications include thermal shielding, radiation protection, electrical contacts, and precision components where reliability under extreme conditions is essential.
Application
- Aerospace: Used in thermal shields, rocket nozzles, and heat-resistant coatings for extreme heat tolerance.
- Medical: Provides radiation shielding in X-ray and gamma-ray equipment due to high density.
- Electronics: Used in thin components like electrical contacts and filaments for conductivity and heat resistance.
- Nuclear: Applied in shielding and structural parts in reactors for radiation resistance.
- Manufacturing: Utilized in cutting tools and machinery for wear resistance at high temperatures.
How to select Tungsten Foil and Strip
When selecting tungsten foil and strip, consider the following key factors:
Thickness:
- The thickness of the foil or strip is selected based on the application. Thinner foils are ideal for precision applications, while thicker strips are used for structural or high-stress components.
Purity:
- High-purity tungsten (99.9% or above) is preferred for applications in electronics, medical devices, and aerospace to ensure material integrity and performance.
Alloy Composition:
- Alloyed tungsten foils (such as tungsten-copper or tungsten-nickel) are chosen for enhanced machinability, strength, or thermal conductivity depending on the specific application.
Surface Finish:
- A smooth, polished surface is important, especially in medical and electronic applications where contamination can impact performance.
Mechanical Properties:
- Parameters like tensile strength, elongation, and hardness may be important depending on whether the foil is intended for structural use, manufacturing, or precision equipment.