  We present a detailed analysis of Chandra X-ray observations of the lensing
cluster of galaxies CL0024+17 at z=0.395. We found that the radial temperature
profile is consistent with being isothermal out to ~600 kpc and that the
average X-ray temperature is 4.47 (+0.83, -0.54) keV. The X-ray surface
brightness profile is represented by the sum of extended emission centered at
the central bright elliptical galaxy with a small core of 50 kpc and more
extended emission which can be well described by a spherical beta-model with a
core radius of about 210 kpc. Assuming the X-ray emitting gas to be in
hydrostatic equilibrium, we estimated the X-ray mass within the arc radius and
found it is significantly smaller than the strong lensing mass by a factor of
about 2--3. We detected a strong redshifted iron K line in the X-ray spectrum
from the cluster for the first time and find the metal abundance to be 0.76
(+0.37, -0.31) solar.
