  We consider a sample of 22 nearby clusters of galaxies observed with the
Medium Energy Concentrator Spectrometer (MECS) on board of BeppoSAX. They cover
the range in gas temperature between 3 and 10 keV, with bolometric X-ray
luminosity between 2e44 erg/s and 6e45 erg/s. Using the de-projected gas
temperature and density profiles resolved in a number of bins between 5 and 7
and obtained from this dataset only, we recover the total gravitating mass
profiles for 20 objects just applying the (i) spherical symmetry and (ii)
hydrostatic equilibrium assumptions. We investigate the correlations between
total mass, gas temperature, luminosity at several overdensities values and
find that the slopes of these relations are independent from the considered
overdensity and consistent with what is predicted from the cluster scaling
laws. The best-fit results on the normalization of the M-T relation are
slightly lower, but still consistent considering the large errors that we
measure, with hydrodynamical simulations. A segregation between relaxed and
non-relaxed systems is present in each plane of these relations pointing out to
a significant component in their intrinsic scatter. This segregation becomes
more evident at higher overdensities and when physical quantities, like M_gas
and L, that are direct function of the amount of gas observed, are considered.
