  The determination of the critical parameters of metals has remained
particularly challenging both experimentally, because of the very large
temperatures involved, and theoretically, because of the many-body interactions
that take place in metals. Moreover, experiments have shown that these systems
exhibit an unusually strong asymmetry of their binodal. Recent theoretical work
has led to new similarity laws, based on the calculation of the Zeno line and
of the underlying Boyle parameters, which provided results for the critical
properties of atomic and molecular systems in excellent agreement with
experiments. Using the recently developed Expanded Wang-Landau (EWL) simulation
method, we evaluate the grand-canonical partition function, over a wide range
of conditions, for $11$ $FCC$ and $HCP$ metals ($Ag$, $Al$, $Au$, $Be$, $Cu$,
$Ir$, $Ni$, $Pb$, $Pd$, $Pt$ and $Rh$), modeled with a many-body interaction
potential. This allows us to calculate the binodal, Zeno line, Boyle parameters
and, in turn, obtain the critical properties for these systems. We also propose
two scaling laws for the enthalpy and entropy of vaporization, and identify
critical exponents of $0.4$ and $1.22$ for these two laws, respectively.
