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Baoji Towin Rare Metals Co.,Ltd
Home ProductsTantalum Tube

Heat Resistant Welded Ta Tube 99.99% 4N Purity Excellent Properties Performance

China Baoji Towin Rare Metals Co.,Ltd certification
We appreciate your nice services and the perfect sputtering targets Towin supplied. We would like to enter into a long term cooperation with Towin Rare Metals.

—— Simon

Reliable factory providing excellent products and services. The specification and quality exceeds ourexpects. Very good, thanks!

—— Bruno Pascal

Very professional team and advanced equipment. Your price is beautiful and the products are perfect. The performance of niobium sheets and plates performs quite well !

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Heat Resistant Welded Ta Tube 99.99% 4N Purity Excellent Properties Performance

Heat Resistant Welded Ta Tube 99.99% 4N Purity Excellent Properties Performance
Heat Resistant Welded Ta Tube 99.99% 4N Purity Excellent Properties Performance

Large Image :  Heat Resistant Welded Ta Tube 99.99% 4N Purity Excellent Properties Performance

Product Details:
Place of Origin: CHINA
Brand Name: TOWIN
Certification: ISO9001
Model Number: RO5200,RO5400
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: Standard and Protective for Exporting
Delivery Time: 2-4 weeks
Payment Terms: L/C, T/T
Detailed Product Description
Purity: 99.95%(3N5)-99.99%(4N) Thickness: 0.2-5.0mm
Length: 100mm-12000mm Condition: Annealed, Solid
Boiling Point: 5425℃ Melting Point: 2996 ℃
Heat Of Vaporization: 753 KJ/mol Shape: Tube, Pipe
Appearance: Metallic Luster Appears Inner And External Tube Wall, No Oxidation Or Hydrogenation, No Scratch Or Transformation Application: Tantalum Mechanical Parts, Semiconductor Materials Etc
High Light:

tantalum pipe


seamless tube

Tantalum Welded Tubing , Tantalum Tubes , Welded Tantalum Pipes , 99.99%(4N) Purity





Tantalum can be manufactured into welded tubing and seamless tubing, which are widely used in electronics, semiconductor, chemical, engineering, aviation, aerospace, medical, military industry.


The process of welded Tube/Pipe is Fit for mass production, the advantages of welded tantalum tube are listed as below:

  1. Uniform wall thickness, internal surface is in good quality
  2. High production efficiency and low costs
  3. Easy to manufacture larger diameter tubes/pipes
  4. Short production term
  5. Easy to control prodcts quality

Towin Rare Metals produce RO5200, RO5400 with different dimensions of the tantalum tubes. Our tantalum welded tubes offer significantly better wall thickness and concentricity control compared to seamless tubes. wall thicknesses are specified to be as thin as structural conditions will permit.Towin welded tube is rolled and welded from annealed tantalum strip and has sufficient formability to meet requirements for most usage in fabricating chemical process equipment.




Metallic impurities, ppm max by weight, Balance - Tantalum

Element Fe Mo Nb Ni Si Ti W
RO5200 100 200 1000 100 50 100 500
RO5400 100 200 1000 100 50 100 500


Non-Metallic impurities, ppm max by weight

Element C H O N
Content 100 15 150 100


Mechanical properties for annealed tantalum tube

Ultimate Tensile Strength min(MPa) 207
Yield strength min (Mpa, 0.2% offset) 138
Elongation min (%, 1in or 2in gauge length) 25


Dimension Tolerance

Outer Diameter




Thickness Tolerance


25.4 0.102 10
25.4-38.1 0.127 10
38.1-50,8 0.152 10
50.8-63.5 0.178 10
63.5-88.9 0.254 10


Straightness of tantalum tubes/pipes



Maximus Radian
3-6 (0.91-1.83) 1/8 in (3.2mm)
6-8 (1.83-2.44) 3/16 in (4.8mm)
8-10 (2.44-3.05) 1/4 in (6.4mm)
10 up(3.05 up) 1/4 in/ any 10 ft (2.1mm/m)


Purity: 99.99%(4N)


Manufacturing Standard: ASTM B521-98

Application: Tantalum mechanical parts, semiconductor materials, high temperature resistance materials, anti-corrosion materials, electronic materials


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
  • Guarantee better than standard quality with lower price
  • Competitive price among the business peers
  • Advanced equipment, and modern management
  • Passed ISO 9001 (2015)
  • Full and strict quality control system,


Any more enquiries, please don't hesitate to contact us  for an inquiry. We will reply you our best quote ASAP.


Contact Details
Baoji Towin Rare Metals Co.,Ltd

Contact Person: sales

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