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Baoji Towin Rare Metals Co.,Ltd
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φ1.0 - 100mm Diameter Tantalum Welded Tube For Aviation / Aerospace Industry

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 !

—— James Daniel

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φ1.0 - 100mm Diameter Tantalum Welded Tube For Aviation / Aerospace Industry


Large Image :  φ1.0 - 100mm Diameter Tantalum Welded Tube For Aviation / Aerospace Industry

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: 2-3weeks
Payment Terms: T/T
Detailed Product Description
Purity: 99.95%(3N5) Diameter: φ1.0-150mm
Thickness: 0.2-5.0mm Length: 100mm-1200mm
Condition: Annealed, Solid Boiling Point: 5425℃
Melting Point: 2996 ℃ Heat Of Vaporization: 753 KJ/mol
Shape: Welded Tube, Pipe Appearance: Metallic Luster Appears Inner And External Tube Wall, No Oxidation Or Hydrogenation, No Scratch Or Transformation
High Light:

tantalum pipe


seamless tube

99.95%(3N5) Purity Tantalum Tube , Welded Tantalum Pipes , Tantalum Welded Tubing​





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 and disadvantages are as below:



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



  • Poor flexibility, not available to produce various of specifications but small quantity products
  • Welding seam is hard and require skilled person and easy to cause troubles
  • Difficult to clean the welding line
  • Difficult to control ovality
  • Strict dimension requirements for tantalum strips

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.


Purity: 99.95%(3N5)


Manufacturing Standard: ASTM B521-98




Metallic impurities, ppm max by weight, Balance - Tantalum

Element Fe Mo Nb Ni Si Ti W
Content 100 200 1000 100 50 100 50


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)


More than 20 years’ experiences in tantalum /niobium and its alloy smelting and deep processing, we make sure that we can provide you with the best quality products with competitive price. If you require customization service, you only need to send us your required material, purity, dimension, quantity or a drawing for an inquiry. We will reply you our best quote ASAP.


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