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Niobium Sheet & Plate | ASTM B393 Niobium

Fortu Tech is an ISO Certified Corporation located in China and specializes in manufacturing Pure Niobium Sheet&Plate. We have more than 20 years of production experience. Our products are Conflict Free material. Fortu Tech manufactures and supplies niobium sheet and niobium plate for demanding applications requiring high-temperature performance, corrosion resistance and reliable material purity. Our niobium products can be supplied according to ASTM B393 and relevant customer specifications, including UNS R04200 and R04210 grades.

Common specifications
Thickness inch 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Thickness mm 3.81 5.08 6.35 7.62 8.89 10.16 11.43 12.7

We offer standard and custom dimensions for niobium sheet and plate, with material certificates and technical documentation available according to project requirements.
Contact Fortu Tech for a quotation or customized niobium material solution.

What is Niobium Sheet&Plate?

The Cas No. of Nb plate is 7440-03-1.
Niobium Sheet has a high melting point and high thermal stability. Niobium has a high melting point (about 2468 degrees Celsius) and excellent thermal stability, enabling it to work stably in high temperature environments for long periods of time. Pure Niobium Plate has excellent mechanical strength and toughness, can withstand large stress and deformation and is not easy to break.

Nb Sheet is a good conductor with low resistivity and is widely used in electronic devices and superconductors. Pure Nb Plate has good corrosion resistance to many chemicals and can maintain stability in corrosive environments such as acids and alkalis.
Nb Sheet has a low oxidation rate, so it is relatively stable in the atmosphere and does not react easily with oxygen.

Chemical Requirements of Niobium Sheet&Plate

ASTM B393 R04200 Chemical Requirements Niobium Sheet&Plate
Element % C N O H Zr Ta Fe Si W Ni Mo Hf Ti B Al Be Cr Co
Content Maximum % 0.01 0.01 0.015 0.0015 0.02 0.1 0.005 0.005 0.03 0.005 0.01 0.02 0.02 2 ppm 0.002 0.005 0.002 0.002
ASTM B393 R04210 Chemical Requirements Niobium Sheet&Plate
Element % C N O H Zr Ta Fe Si W Ni Mo Hf Ti Al
Content Maximum % 0.01 0.01 0.025 0.0015 0.02 0.3 0.01 0.005 0.05 0.005 0.02 0.02 0.03 0.005
The specification of ASTM B393
ASTM B 393 UNS R04200 Type 1 Reactor grade unalloyed niobium sheet and niobium plate
ASTM B 393 UNS R04210 Type 2 Commercial grade unalloyed niobium sheet and niobium plate
ASTM B 393 UNS R04251 Type 3 Reactor grade niobium alloy containing 1 % zirconium, Nb1Zr sheet and Nb1Zr plate
ASTM B 393 UNS R04261 Type 4 Commercial grade niobium alloy containing 1 % zirconium, Nb1Zr sheet and Nb1Zr plate
ASTM B 393 UNS R04220 Type 5 RRR grade pure niobium, RRR Nb sheet and RRR Nb plate

If you have inquiry or want to discuss your design with us, please write email to us.
We will reply your email within 24 hours.

Fortu Tech is a China-based manufacturer specializing in niobium, tantalum, molybdenum, titanium and zirconium metals and alloys. We supply high-purity metals, refractory metal alloys and custom-made products including foil, sheet, plate, tube, wire, rod, target and ingot for aerospace, semiconductor, medical, superconductivity and other advanced applications.

Mechanical Properties of Niobium Sheet&Plate

Annealed Condition (90% Minimum Recrystallized)

Mechanical Properties of Nb Sheet ASTM B393
Thickness Ultimate Tensile Strength Yield Strength Elongation
Less than 0.01" 18 000 min, psi 10 500 min, psi 15%
Less than 0.01" 125 min, Mpa 73 min, Mpa 15%
Greater than 0.01" 18 000 min, psi 10 500 min, psi 20%
Greater than 0.01" 125 min, Mpa 73 min, Mpa 20%

Physical property of Nb Sheet&Plate

Cas No. of Nb 7440-3-1
EINECS No.of Nb 231-113-5
Element class of Nb Transition metal element
Density of Nb 8570kg/m3;8.57g/cm3
Melting Point of Nb 2468 ℃
Boiling Point of Nb 4742 ℃
Electronegativity of Nb 1.6
Atomic radius of Nb 146pm
Thermal Conductivity of Nb (300 K) 53.7 W·m−1K−1
Electrical Resistivityof Nb (0 °C) 152 nΩ·m

Niobium Products Comparison

Niobium sheet, plate, and foil are available in different grades, thicknesses, dimensions, and surface conditions. The appropriate niobium product depends on the required material grade, ASTM specification, thickness, dimensions, mechanical requirements, operating temperature, application environment, and processing requirements. Fortu Tech supplies niobium sheet, plate, foil, and other niobium products in customized dimensions according to customer specifications.

Niobium Sheet

Niobium sheet is commonly selected for relatively thin and precision applications where controlled thickness, dimensional accuracy, and suitable mechanical properties are required. Fortu Tech can supply niobium sheet in customized thicknesses, widths, lengths, and surface conditions according to customer specifications.

Niobium Plate

Niobium plate is generally selected for thicker components requiring greater rigidity, dimensional stability, or structural support. Fortu Tech supplies niobium plate in customized dimensions and material conditions according to applicable specifications and customer requirements.

01

Niobium Sheet vs. Niobium Plate

Niobium sheet and niobium plate are both manufactured from niobium material, but they are generally selected according to thickness, dimensions, mechanical requirements, and application. Niobium sheet is commonly used for relatively thin and precision applications, while niobium plate is preferred for thicker components requiring greater rigidity or structural support. Fortu Tech can supply niobium sheet and plate in customized thicknesses, widths, lengths, and surface conditions according to customer specifications.

02

Niobium Sheet vs. Niobium Foil

The main difference between niobium sheet and niobium foil is thickness and the intended application. Niobium foil is typically selected for very thin applications where flexibility, low material thickness, or precise forming is required, while niobium sheet is generally used for applications requiring greater thickness and rigidity. Fortu Tech supplies both niobium foil and niobium sheet in customized dimensions, allowing customers to select the appropriate product according to their technical requirements.

03

R04200 vs. R04210 Niobium Sheet

UNS R04200 and UNS R04210 are two unalloyed niobium grades covered by ASTM B393. The appropriate grade depends on the required chemical composition, mechanical properties, processing condition, and application. When selecting between R04200 and R04210 niobium sheet or plate, customers should consider the applicable ASTM requirements and their specific operating conditions. Fortu Tech can provide material documentation and technical information to support grade selection.

04

Pure Niobium Sheet vs. Niobium Alloy Sheet

Pure niobium sheet and niobium alloy sheet are selected for different performance requirements. Pure niobium is commonly selected when high purity, corrosion resistance, electrical properties, or superconducting performance is important. Niobium alloys, such as selected Nb-Zr compositions, may be considered when higher strength or specific high-temperature performance is required. Fortu Tech can manufacture and supply pure niobium and selected niobium alloys according to customer drawings and technical specifications.

How to Choose the Right Niobium Product?

When selecting niobium sheet, plate, or foil, customers should consider material grade, ASTM specification, thickness, width, length, surface finish, purity, mechanical requirements, operating temperature, and application environment. For specialized applications such as superconducting components, vacuum equipment, aerospace research, or chemical processing, additional requirements may include material chemistry, RRR, grain structure, surface condition, and inspection documentation.

Application → Specification → Grade → Product Form

Fortu Tech can review customer drawings and technical specifications to recommend a suitable niobium product and manufacturing condition.

Niobium Sheets and Plates for Advanced Applications

Niobium Sheets and Plates are premium material solutions for advanced technological applications. High‑purity niobium sheets and plates (99.95%‑99.99%) serve as fundamental components across advanced industries due to their unique combination of electrical conductivity, thermal stability, and corrosion resistance.

In electronics manufacturing, niobium sheets can be used for specialized electronic components, substrates, and vacuum‑processing applications where stable electrical and thermal performance is required.

These Nb sheets can also function as substrates and sputtering targets for thin‑film and semiconductor‑related processes, where material purity, surface quality, and processing conditions are important to achieving consistent performance.

The superconducting applications of niobium plates are particularly noteworthy in advanced scientific equipment. High‑purity niobium sheet forms critical components in SRF (superconducting radio frequency) cavities for particle accelerators, while niobium materials are also used in specialized superconducting research and cryogenic applications.

For demanding superconducting applications, material purity, RRR (Residual Resistivity Ratio), grain structure, surface quality, and processing history can all be important factors. Fortu Tech can supply high‑purity niobium materials according to specific technical requirements for superconducting and research applications.

Aerospace and high‑temperature applications benefit from niobium's exceptional thermal properties, with niobium and selected niobium alloys being considered for specialized high‑temperature components and research applications.

Niobium has a melting point of approximately 2468°C and maintains useful properties at elevated temperatures. Niobium sheets and plates are available in standard grades UNS R04200 and UNS R04210, in accordance with applicable ASTM B393 requirements, with material traceability and documentation available according to customer requirements.

For chemical processing applications, niobium demonstrates good corrosion resistance in many aggressive chemical environments. This makes niobium sheets suitable for selected chemical‑processing components, electrodes, vacuum components, and other specialized applications where corrosion resistance and thermal stability are required.

The suitability of niobium should be evaluated according to the specific chemical medium, concentration, temperature, and operating conditions. The Nb plate's stability in ultra‑high vacuum conditions further expands its utility in specialized industrial and research processes.

In medical technology, niobium is considered a biocompatible material and has been investigated for selected medical and biomedical applications.

Its corrosion resistance and compatibility with certain specialized environments make it of interest for medical research, surgical components, and other applications where material compatibility is important. Specific medical applications require evaluation according to the applicable material, regulatory, and biocompatibility requirements.

Available in customized thicknesses and dimensions according to customer requirements, niobium products can be supplied with different surface finish options, including rolled, polished, or other specified finishes.

Fortu Tech manufactures niobium sheet and plate in accordance with applicable ASTM B393 requirements and can provide material documentation and inspection reports according to customer specifications.

Special processing, including precision rolling and other customized processing methods, can be arranged for superconducting, aerospace, research, and industrial applications.

With capabilities for custom sizing and specialized alloys, including selected Nb‑Zr compositions, we provide tailored solutions for demanding technical requirements across industries ranging from scientific research to advanced industrial applications.

For technical specifications or application consultation, our materials engineering team provides comprehensive support to help select the appropriate niobium sheet or plate solution for your specific requirements, whether for large‑scale industrial deployment, customized components, or precision research applications.

Why Choose Fortu Tech for Niobium Sheet?

Fortu Tech specializes in niobium and other refractory metals, including tantalum, molybdenum, titanium and their alloys.

Our capabilities include
Niobium sheet and plate
Niobium foil and strip
Niobium rod and bar
Niobium wire
Niobium tube
Niobium targets
Niobium ingot
Niobium alloy products
Custom-made refractory metal products

Frequently Asked Questions

ASTM B393 is a commonly referenced specification for wrought niobium and niobium alloy products, including sheet and plate. The applicable grade and requirements should be confirmed for each project.

Fortu Tech can supply commonly requested niobium grades such as UNS R04200 and R04210, as well as other niobium and niobium-alloy grades subject to specification and availability.

Yes. Custom dimensions can be evaluated according to customer drawings or specifications. Please provide the required thickness, width, length, tolerance, grade and quantity.

Yes. Fortu Tech can supply niobium sheet and plate in different thicknesses and dimensions according to the applicable specification and project requirements.

High-purity and RRR niobium requirements can be discussed based on the required purity level, RRR value, dimensions and application. Please provide your technical specification for evaluation.

Material certificates and relevant technical documentation can be provided according to the agreed product specification and order requirements.

Please send us your required niobium grade, ASTM specification, thickness, width, length, quantity, surface condition and application requirements. Drawings or technical specifications are welcome for customized products.

Need a Custom Niobium Solution?

Contact Fortu Tech with your specifications and application requirements.

Request a Quote

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Add: 399 Chunhe Road, Baoshan District, Shanghai, China, 200941
Tel: +86 21 56656030

Email: info@fortu-tech.com

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