It does not exist
It is more sensitive to changes in both metallurgical and mechanical conditions
It gives, a more accurate picture of the ductility
It can be correlated with stress-strain values in other tests like torsion, impact, combined stress tests etc.
more
less
same
more/less depending on composition
principal stress
tensile stress
compressive stress
shear stress
rubber
plastic
brass
steel
2.1xl05 kg/cm2
2.1 X 106 kg/cm2
2.1 x 107 kg/cm2
0.1 x lO6 kg/cm2