Physical Properties and Steam Approximations Cost: $389 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions Physical Properties and Steam Approximations: This program calculates thermodynamic and transport properties of gaseous, liquid, and solid species (TP, HP and SP), according to U.S. customary and International units, and steam approximations for both saturated and superheated areas.