Mechanical Properties of Hafnium and Tantalum
Density
  
  
Density At Room Temperature
13.31 g/cm3
  
26
16.69 g/cm3
  
18
Density When Liquid (at m.p.)
12.00 g/cm3
  
12
Tensile Strength
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Elasticity properties
  
  
Other Mechanical Properties
Ductile, Malleable
  
Ductile