Niobium Foil

Niobium foil is a durable and versatile material known for its excellent corrosion resistance, high strength, and ability to withstand extreme temperatures. It is widely used in industries like aerospace, electronics, and medical devices.

With over 10 years of experience and ISO-certified manufacturing processes, we provide niobium foil that supports a wide range of critical applications. Whether you need custom sizes or standard solutions, our niobium foil delivers the durability and strength required for your most demanding projects.

Contact us today to get premium niobium foil solutions tailored to your needs and ensure the success of your next project.

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Our Niobium Foil Specifications

Niobium Foil Information

Material: Pure Niobium
Standards: ASTM B393
Grade: R04200-1, R04210-2, R04251-3, R04261-4, R04220-5
Purity: Nb >99.95%, >99.99%
Density: 8.57 g/cm³ @20°C

Melting Point: 2477 °C
Boiling Point: 4742°C
Thermal Conductivity: 0.537 W/cm/K @ 298.2 K
Electrical Resistivity: 12.5 microhm-cm @ 0 °C

Niobium Forms & Typical Size Available

Forms	Thickness (mm)	Width (mm)	Length (mm)
Foil	0.03-0.09	30-150	>200
Sheet	0.1-0.5	30- 600	30-2000
Plate	0.5-10	50- 1000	50-2000

Niobium Sheet Properties

Grade	Ultimate tensile strength, min., psi (MPa)	Yield strength, 0.2% Residual deformation, min., psi (MPa)	Elongation in 1″ (25.4mm) Gage Length, min., ％
Grade	Ultimate tensile strength, min., psi (MPa)	Yield strength, 0.2% Residual deformation, min., psi (MPa)	>=0.010″	<0.010″
RO4200-1 RO4210-2	18000 (125)	12000 (85)	20	15
RO4251-3 RO4261-4	28000 （195）	18000 （125）	20	15
RO4222-5	14000 （95）	7200 （50）	30	30

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Why Choose SIZEN as Your Niobium Foil Supplier?

Quality Materials

Clean, high-quality material

Customized Solutions

Tailored for specific project needs.

Rigorous Quality Control

Uniform thickness, reliable use.

Superior Surface Quality

Smooth, flawless surface for precise applications.

Fast, Global Reach

On-time delivery with efficient processing.

5 MAIN REASONS TO CHOOSE US

1

High-Quality Niobium Foil

At SIZEN, we focus on delivering premium niobium foil with consistent thickness, smooth surface, and excellent mechanical properties. We use advanced production techniques to make sure every sheet meets the highest standards for durability and performance.

2

Customized Solutions

With years of experience in the niobium industry, we know exactly what works for different applications. Our team is skilled in helping you find the right product, whether you need standard or custom niobium foil, and we're here to guide you through every step.

3

Rigorous Quality Control

Every batch of niobium foil undergoes strict quality checks. From material purity to physical properties, we make sure each sheet meets your exact specifications.

4

Superior Surface Quality

Our niobium foil is manufactured with a smooth, flawless surface that minimizes imperfections and ensures consistent performance.

5

Fast, Global Reach

While we serve customers worldwide, our base in China gives us access to the best materials and competitive pricing. No matter where you're located, we guarantee prompt delivery and top-quality service.

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Unique Properties of Niobium Foil

Exceptional Strength-to-Weight Ratio

Niobium foil offers a high strength-to-weight ratio, allowing it to perform well under stress without adding unnecessary weight. This is particularly useful in aerospace, automotive, and other industries where lightweight materials are crucial.

High Corrosion Resistance

Niobium foil is known for its excellent resistance to corrosion, even in harsh environments. It maintains its integrity in acidic and alkaline conditions, making it ideal for use in chemical processing and industrial applications.

Outstanding Formability

Niobium foil can be easily shaped and formed without losing its structural integrity. This property makes it versatile for custom applications in electronics, medical devices, and precision manufacturing.

Biocompatibility

Niobium is highly biocompatible, meaning it does not react with biological systems, making it an excellent material for medical devices and implants, such as bone screws and dental implants.

High Melting Point

With a melting point of 2,468°C (4,474°F), niobium foil retains its strength and stability at elevated temperatures, making it suitable for high-temperature applications such as aerospace components and high-performance machinery.

Excellent Electrical Conductivity

Niobium foil also exhibits good electrical conductivity, which is essential for applications in electronics and energy storage systems, where efficient current flow is needed.

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Manufacturing Process of Niobium Metals

We begin with an advanced chemical extraction process to isolate pure niobium from its ores. This ensures the highest possible purity, setting the foundation for high-quality niobium foil products.

Using cutting-edge reduction techniques, we convert niobium into fine, uniform metal powders. These powders serve as the starting material for all our niobium foil products, ensuring consistency and quality.

Niobium powder is carefully pressed and rolled into thin sheets using state-of-the-art machinery. This process allows us to achieve the desired thickness for our niobium foil, ensuring uniformity and precision in every batch.

The foils undergo a high-temperature sintering process. This bonds the niobium particles together, giving the foil increased strength, durability, and resistance to mechanical stress.

Each niobium foil is subjected to tailored heat treatment. This step optimizes the foil’s mechanical properties, enhancing flexibility, strength, and resistance to high temperatures.

Our advanced cutting and shaping methods are used to achieve the exact dimensions for each niobium foil sheet. Whether in standard or custom sizes, we ensure the final product meets strict specifications.

After shaping, the niobium foils undergo meticulous polishing and surface refining. This process results in a smooth, high-quality finish, ensuring that the foil meets both aesthetic and functional requirements.

Each niobium foil is thoroughly inspected for quality and consistency. We test for thickness, surface smoothness, and any potential defects. After passing these checks, the foils are carefully packaged to ensure they reach you in perfect condition.