Tantalum Properties

tantalum mechanical physical properties specifications chemistry

When selecting the materials to best meet the requirements of your application, the physical properties are of the utmost importance. Below are some tables with data on Tantalum properties, including physical and mechanical properties, chemistry and the pertinent specifications.  If you require any additional information on our Tantalum products, please call or email us for assistance.

For a Tantalum data sheet, or any other Refractory Metals & Alloys data sheets, please go to our Alloys and Metals Literature Library section.

Tantalum Physical Properties 
Densitylb/in30.60
gm/cm316.60
Melting Point°F5425
°C2996
Thermal ConductivityCal/cm2/cm°C/sec0.13
Specific HeatCal/gm/°C0.036
Coefficient of Linear Thermal Expansion10-6 (°F) -13.60
10-6 (°C) -16.60
Electrical ResistivityMicrohms-cm12.40
Tantalum Mechanical Properties 
Tensile StrengthKSI (MPa)-RT250 (1725)
KSI (MPa)-500°C150 (1035)
KSI (MPa)-1000°C75 (515)
Elongation% in 1.0"--
HardnessDPH300
Modules of ElasticityKSI58000
GPa400
Tantalum Chemistry
Minimum % 99.99
Tantalum Specifications  
AMS 7849UNS R05400CAS 7440-25-7

For additional information on specifications of the materials distributed by Ed Fagan Inc., please visit the websites of the international standards organizations that develops and publishes technical standards, ASTM International and ASM International.

Ed Fagan Inc. is the leading supplier of controlled expansion, refractory, soft magnetic  metals & alloys and electronic nickels for the aerospace, aviation, communications, defense, energy, electronic, medical, research and other high technology markets.