Mechanical Properties of Niobium and Hafnium
Density
  
  
Density At Room Temperature
8.57 g/cm3
  
99+
13.31 g/cm3
  
26
Density When Liquid (at m.p.)
Not Available
  
12.00 g/cm3
  
12
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Elasticity properties
  
  
Other Mechanical Properties
Ductile, Malleable
  
Ductile, Malleable