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RO4210 3N5 Pure Nb Sheet Metal / Niobium Foil Annealed Condition

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RO4210 3N5 Pure Nb Sheet Metal / Niobium Foil Annealed Condition

Brand Name : TOWIN
Model Number : RO4200,RO4210
Certification : ISO9001
Place of Origin : CHINA
MOQ : Negotiable
Price : Negotiable
Payment Terms : L/C, T/T,
Delivery Time : 2-4weeks
Packaging Details : Standard for Exporting
Dimension : Customized as per request
Raw Material : Niobium ingot ASTM B391
Shape : Plate,
Condition : Annealed
Technology : High vacuum EB furnace technology
Boiling point : 4742 ℃
Melting point : 2468 ℃
Property : heat-resistant, corrosion resistant, good ductility
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3N5 Pure Niobium Sheet Metal in Large Stock and Prompt Delivery ASTM B393

Application: niobium plates are used as anticorossion material for anti corrosive equipment in chemical industry etc


Manufacturing Standard: ASTM B393

Dimension: Customized upon request

Purity: 99.95%-99.99%


Metallic impurities, ppm max by weight, Balance - Niobium


Non-Metallic impurities, ppm max by weight


Mechanical properties for annealed strips and foils

Ultimate Tensile Strength (MPa)125
Yield strength (MPa, 2% offeset)73
Elongation(%, 1-in gage length)thickness ≥0.254mm20
thickness <0.254mm15

Dimensional Tolerance

thickness (in)0.129-0.2540.279-0.3810.406-0.5080.508-0.762
tolerance on thickness (±mm)W<152.40.01270.01780.02030.04
Tolerance on thickness (slit) (±mm)W<152.40.3050.3810.3810.51
Torerance on length(±mm)L≤340.8+1.591.591.591.59


Niobium has a very high melting point and it is corrosion resistant. Its melting point is 2468℃ and boiling point 4742℃. It is has the largest magnetic penetration than any other elements and it also has superconductive properties, and a low capture cross section for thermal neutrons. These unique physical properties make it useful in super alloys used in the steel, aerospace, shipbuilding, nuclear, electronics, and medical industries.

We produce R04200, R04210 niobium plates, and also with sheets, strips and foils which meet ASTM B 393 standard and the sizes can be customized as per your required dimensions.Our Niobium plate, sheet, strip and foil are manufactured by ASTM B391 niobium ingots.

We smelt the high purity Nb2O5 we sourcing from the Chinese biggest hydrometallurgy plant by means of aluminothermic reduction to produce niobium aluminum alloy. Then the niobium aluminum alloy will be smelted in high Vacuum EB furnace to produce niobium bars with Nb content 99.9% up, which will be smelted again in high Vacuum EB furnace to be purified and produce Niobium ingots with purity 99.95% up. The size can be tailored by the customers’ requirements.

We control our products quality through the raw material source till the whole production line and finally deliver to our customers in order to make sure you purchase our products with stable and same quality for each lot. We use Metallographic microscope, Hand-held X ray Fluorescence, Electronic tensile testing machine etc. instruments and tensile test to inspect the material and products and issue the COA for each lot. We have been certified by ISO9001:2015.

We will do our best to fulfill customers' needs and markets' demands by providing a great variety of customized products. Taking advantages of our high quality niobium oxide raw material, advanced equipment, innovative technology, professional team, we tailored your required products. You may tell us all your requirements and we dedicated in manufacturing upon your needs.

Our Strength

  • More than 20 years’ experience in tantalum /niobium and its alloy smelting and deep processing
  • Stable raw material supply from Chinese biggest tantalum/niobium hydrometallurgy smelter
  • Only buy raw materials from ethically trustworthy source is officially confirmed by EICC certificate
  • Guarantee higher quality with lower price
  • Competitive price among the business peers
  • Advanced equipment and technology
  • Passed ISO 9001 (2015)
  • Full and strict quality control system,
  • Precise, sensitive, quick results Inspection instruments

For more inquiry and information, please don’t hesitate to contact us at any time. We also expect your visit to our factory to witness our whole infrastructure, technology, products and our team.

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