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Baoji Towin Rare Metals Co.,Ltd
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Bright And Clean Tantalum Plate 3N5 Purity ASTM B708 Standard Size Tailored

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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Bright And Clean Tantalum Plate 3N5 Purity ASTM B708 Standard Size Tailored


Large Image :  Bright And Clean Tantalum Plate 3N5 Purity ASTM B708 Standard Size Tailored

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: Protective and Standard for Exporting
Delivery Time: 2-4 weeks
Payment Terms: L/C, T/T
Detailed Product Description
Purity: 99.95%(3N5) - 99.99%(4N) Boiling Point: 5425℃
Melting Point: 2996 ℃ Property: Heat-resistant, Corrosion Resistant
Thermal Conductivity: 0.575 W/cm/K @ 298.2 K Appearance: Silvery-gray Solid, Bright And Clean
Surface: Polished Commodity: Tantalum Plate
High Light:

tantalum foil


tantalum strip

99.95%(3N5) - 99.99%(4N) Purity Tantalum Plates , Tantalulm Strips , ASTM B708-05 Standard



Application: Anti-corrosion materials for chemical vessels, ships and engineering industry


Purity:99.95%(3N5) - 99.99%(4N)

Manufacturing standard: ASTM B708



Metallic impurities, ppm max by weight, Balance - Tantalum

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


Non-Metallic impurities, ppm max by weight

Element C H O N
RO5200 200 15 250 100


Mechanical properties for annealed plate and sheet

Thickness (inch) <0.06 ≥0.06
Annealed Ultimate Tensile Strength min(MPa) 207 172
Yield strength min (Mpa, 2% offeset) 138 103
Elongation min (%, 1-in gage length) 20 30


Dimensional tolerance for tantalum sheets and plates


Thickness Range


Thickness Tolerance (±mm) Thickness Tolerance (Slit technology) (±mm) Length Torerance after trimming(±mm)
W<152.4 152.4≤W<609.6 W<152.4 152.4≤W<609.6





+ - + -
0.129-0.254 0.0127 - 0.305  - 1.59 0 6.35 0
0.279-0.381 0.0178 0.0254 0.381 0.381 1.59 0 6.35 0
0.406-0.508 0.0203 0.0381 0.381 0.381 1.59 0 6.35 0
0.533-0.762 0.0381 0.0635 0.508 0.635 1.59 0 6.35 0
0.787-1.524 0.0635 0.0889 0.635 0.762 1.59 0 6.35 0
1.549-2.286 0.1016 0.1270 0.635 0.889 1.59 0 6.35 0



Towin Rare Metals produce different dimensions of the tantalum plates, tantalum sheets and tantalum foils. Moreover, we guarantee the tantalum purity is 99.95% and higher. We also make sure of excellent properties performance. 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 each lot.


We are trying our best to innovate our techniques, enhance the product quality, increase the product utilization rate, lower down the costs, improve our service to supply our customers’ with higher quality products but lower purchase costs. Once you choose us, you will obtain our stable high quality products, more competitive price than other suppliers and our timely, high efficient services.


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 higher quality with lower price to cut down your purchasing costs
  • Very competitive price among the business peers
  • Advanced equipment,technology
  • Passed ISO 9001 (2015)
  • Full and strict quality control system

Bright And Clean Tantalum Plate 3N5 Purity ASTM B708 Standard Size Tailored 0 

Contact Details
Baoji Towin Rare Metals Co.,Ltd

Contact Person: sales

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