Poisson's Ratios Metals
Some metals and their Poisson's Ratios.
The Poisson's Ratio express
 the relative contraction strain (or transverse strain) normal to the applied load  to the relative extension strain (or axial strain) in the direction of the applied load
Poisson's ratio for some common metals:
Metal  Poisson's Ratio  μ  

Aluminum  0.33 
Aluminum Bronze  0.30 
Beryllium  0.024  0.03 
Blackheart Cast Iron  0.26 
Bronze  0.34 
Copper  0.36 
Gold  0.42 
Lead  0.40  0.45 
Magnesium  0.35 
Mild Steel  0.3 
Molybdenum  0.32 
Naval Brass  0.34 
Nickel  0.31 
Phosphor Bronze  0.33 
Platinum  0.39 
Plutonium  0.15  0.21 
Silver  0.37 
Stainless Steel 304L  0.3 
Tantalum  0.35 
Thorium  0.27 
Tin  0.33 
Titanium  0.3 
Tungsten  0.28 
Uranium  0.21 
Wrought Iron  0.3 
Zinc  0.25 
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