A process vessel $10$ ft inside diameter and $25$ ft from tangent line to tangent line height is required to process petroleum hydrocarbons at $130$ psi and $250\backslash$deg F$.$ The steel used in fabricating the shell and formed heads is SA$-285$ Grade C$,$ and joint efficiency of $0\mathrm{.}85.$ The dished head has a radius of $36$ in and a knuckle radius sf $4$ in$.$ The design of the shell and formed heads should be according to code specifications. The corrosion allowance is $1/16$ in$.$ Determine the total weight of the shell and formed heads if the density of the steel is $490$ lb$/$ft$^3.$ Select suitable formed heads for the vessel and determine their thickness and dimensions.