Tantalum

Tantalum is an element with a very high melting point with excellent deep-drawing properties. In addition to its superior ability to be fabricated, its temperature from ductile to brittle is low. Tantalum’s most common use is in electrolytic capacitors. Another use is chemical process equipment such as heat exchangers and condensers. The aerospace and nuclear industries have found a variety of applications for the metal. Because it has good corrosion resistance and resistance to bodily fluids, it can be used for prosthetics and surgical devices.

Summary

  • Name: Tantalum
  • Symbol: Ta
  • Atomic Number: 73
  • Atomic Weight: 180.948
  • Density: 16.6 g/cm3 at 20 °C
  • Standard State: Solid
  • Group in Periodic Table: 5
  • Period in Periodic Table: 3
  • Block in Periodic Table: d
  • CAS Registry ID: 7440-25-7

Physical Properties

THERMAL PROPERTIES

  • Melting Point: 2996 °C
  • Boiling Point: 5427 °C

ELECTRICAL PROPERTIES

  • Electrical Conductivity: 13% IACS
  • Electrical Resistivity: 135.0 nΩ . m at 20 °C

MAGNETIC PROPERTIES

  • Magnetic Susceptibility: 10.4 x10-6 mks at 25 °C

NUCLEAR PROPERTIES

  • Natural Isotopes: 181Ta, 99.988% natural abundance
  • Thermal Neutron Cross Section: 21.3b

CHEMICAL PROPERTIES

  • Corrosion Behavior: Tantalum oxidizes in air above 300 °C. It has excellent resistance to corrosion

MECHANICAL PROPERTIES

  • Hardness: Electron beam melted, 110 HV; P/M compact 120 hv
  • Modulus of Elasticity: Tension: 186 GPa at 20 °C; 159 GPa at 750 °C Shear: 69 GPa at 20 °C
tantalum
73
Ta
180.948
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“Design engineers George LaFleur (left) and Richard Felberg (center) working with owner, Al Menzies (right) on a proprietary design in 1974”

About Standard Die

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FOUNDED IN 1970

When Al Menzies Sr. established Standard Die over 50 years ago, his plan was simple: stand out from the competition. As the first metal stamper to the industrial diamond industry, he was unwilling to compromise his values. He made sure integrity, customer service and quality were integrated into every aspect of the business and, as a result, designed and manufactured some of the world’s finest products for the industrial diamond industry.

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“To make the purchasing of metal stampings painless.”

By pursuing this mission for more than four decades, we have grown from a start up tool and die operation to a world-class metal stamping company. With more than a billion parts delivered, we have provided precision drawing and stamping services to customers spanning the industrial diamond, automotive, aircraft, electrical and medical industries across the globe.

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