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Tantalum Suppliers

Tantalum Properties

Tantalum is a heavy, rare, ductile metal highly resistant to corrosion, chemicals and high temperatures and has a dark blue/grey appearance. Tantalum is a relatively rare metal element used extensively in technology settings such as mobile phones and computers but also in extreme environments such as vacuum furnaces. Tantalum is a chemical element with the symbol Ta and an atomic number of 73 in the periodic table. It has been used since its discovery in 1802 for its chemical resistance..

Tantalum has the fourth highest melting temperature of all metals in the periodic table and, combined with it’s high resistance to corrosion this makes it useful in the chemical and marine industry. Tantalum is part of the corrosion-resistant, high-temperature, and refractory metals. Find out more about Corrosion Resistant Alloys

Tantalum Applications

Tantalum is used surgically, in chemical processing equipment, jet turbines, nuclear reactors, dental, crucibles, heat exchangers, turbine blades, capacitors, semiconductors, magnetic shielding and in sputtering targets.

Tantalum is widely used in the marine industry as it is a non-toxic metal that does not release any pollutants into the marine ecosystem and being corrosion-resistant can be used in the ocean without its structure being weakened.

Tantalum is commonly used in nuclear reactors due to its high temperature performance which can retain properties without melting. It is used within nuclear fusion research as tantalum wires used in nuclear reactors often incorporate barriers designed to resist internal diffusion.

  • Surgical
  • Capacitors
  • Vacuum Furnaces
  • Chemical Processing Equipment
  • Nuclear Reactors
  • Dental
  • Crucibles
  • Heat Exchangers
  • Turbine Blades
  • Semiconductors
  • Sputtering Targets
  • Magnetic Shielding

Tantalum Formats supplied:

Vulcan Metal Group supplies tantalum sheet, foil, strip, plate, wire, rod, bar, powder, blanks, pipe, tubing, fittings and crucibles. Custom machined and finished parts supplied to print.

Please contact us for more information and how we can help you.

Tantalum – Did You Know?

  • Tantalum was first discovered in 1802 by the Swedish chemist Anders Ekeberg. He named the new element after the Greek mythological figure Tantalus, the father of Niobe.
  • The largest reserves of tantalum are found in Australia, Brazil, and Canada whilst Rwanda, the Democratic Republic of Congo, and China are also major producers.
  • Tantalum has the third-highest melting point of all known elements, surpassed only by tungsten and rhenium and can resist corrosion by Aqua Regia, a mixture of nitric and hydrochloric acid, which can dissolve many other metals.
  • Tantalum is used in nuclear reactor lining due to its resistance to corrosion by nuclear fuels and is often used in medical bone repair plates, artificial joints and surgical instruments due to its resistance to bodily fluids. Tantalum nanoparticles are being investigated for their potential in targeted cancer therapies to deliver drugs directly to cancer cells. Tantalum helps make music when incorporated into guitar strings to enhance their durability and longevity.
  • Tantalum is used in high-performance turbine blades for jet engines and also a crucial component in high quality capacitors. Some audiophiles believe that tantalum capacitors contribute to superior sound quality. It is also valued for having unique low temperature superconducting properties making it useful in superconducting magnets and magnetic resonance imaging (MRI) machines.

Chemical Composition

Element ATI

Ta10W™

ATI

Ta2.5W™

C 0.01 0.01
O 0.015 0.015
N 0.01 0.01
H 0.0015 0.0015
Fe 0.01 0.01
Mo 0.02 0.02
Nb 0.1 0.1
Ni 0.01 0.01
Si 0.005 0.005
Ti 0.01 0.01
W 9.0–11.0 2.0–3.5
Ta remainder remainder

 

Element ATI

Ta40Nb™

Unalloyed

Tantalum

C 0.01 0.01
O 0.015 0.02
N 0.01 0.01
H 0.0015 0.0015
Fe 0.01 0.01
Mo 0.02 0.02
Nb 0.5 35.0–42.0
Ni 0.01 0.01
Si 0.005 0.005
Ti 0.01 0.01
W 0.05 0.05
Ta remainder remainder

 

Mechanical Properties for Annealed Plate, Sheet, and Strip

Thickness Ultimate Tensile Strength (psi)
<0.060 in. thick 30,000 (207 MPa)
≥0.060 in. thick 25,000 (172 MPa)
Sheet and Strip 70,000 (482 MPa)
Plate 70,000 (482 MPa)
<0.125 in. thick 40,000 (276 MPa)
≥0.125 in. thick 40,000 (276 MPa)
<0.060 in. thick (ATI Ta2.5W™) 35,000 (241 MPa)
≥0.060 in. thick (ATI Ta2.5W™) 35,000 (241 MPa)

 

Thickness Yield Strength (psi)
<0.060 in. thick 20,000 (138 MPa)
≥0.060 in. thick 15,000 (103 MPa)
Sheet and Strip 60,000 (414 MPa)
Plate 55,000 (379 MPa)
<0.125 in. thick 30,000 (207 MPa)
≥0.125 in. thick 22,000 (152 MPa)
<0.060 in. thick (ATI Ta2.5W™) 20,000 (138 MPa)
≥0.060 in. thick (ATI Ta2.5W™) 15,000 (103 MPa)

 

Thickness Elongation (%)
<0.060 in. thick 20
≥0.060 in. thick 30
Sheet and Strip 15
Plate 20
<0.125 in. thick 20
≥0.125 in. thick 25
<0.060 in. thick (ATI Ta2.5W™) 25
≥0.060 in. thick (ATI Ta2.5W™) 25

 

Mechanical Requirements for Tantalum and Tantalum Alloy Seamless and Welded Tubes

Alloy Ultimate Tensile Strength (psi)
Unalloyed Ta 30,000 (207 MPa)
ATI Ta2.5W™ 40,000 (276 MPa)
ATI Ta10W™ 70,000 (481 MPa)
ATI Ta40Nb™ 40,000 (226 MPa)
Ultimate Tensile Strength (psi) Yield Strength, 0.2% offset (psi)
30,000 (207 MPa) 20,000 (138 MPa)
40,000 (276 MPa) 28,000 (193 MPa)
70,000 (481 MPa) 60,000 (414 MPa)
40,000 (226 MPa) 28,000 (193 MPa)
Alloy Elongation (%)
Unalloyed Ta 25
ATI Ta2.5W™ 20
ATI Ta10W™ 15
ATI Ta40Nb™ 20

Product Forms and Availability

Alloy Available Forms
Tantalum Bar, Rod, Tube, Plate, Sheet, Strip, Foil, Machined Components, Powder
ATI Ta10W™ Billet, Bar, Rod, Tube, Plate, Machined Components
ATI Ta2.5W™ Sheet, Tube, Machined Components
ATI Ta40Nb™ Billet, Bar, Rod, Tube, Plate

 

Quality Policy: Vulcan Metal Group, LLC. supplies mission critical, special purpose materials, and products at a competitive price. The company’s quality system is registered to ISO 9001 and AS9100 and follows its principles for the governance of the business. An active continual improvement program and compliance with all applicable OSHA, federal, and state regulations is maintained.