--- In STMFC@yahoogroups.com, "Mark Mathu" <mark@...> wrote:
It is described as "steel pipe," and I agree that the walls are way too thick for steel or iron pipe. And the pipes are too long to represent precast concrete pipe.
The wall thickness of precast concrete pipe varies with the load it is specified for, but as a general rule the wall thickness (in inches) is about one greater than the pipe diameter (in feet). So a 2-foot diameter concrete pipe would have a 3" wall thickness, and a 6-foot diameter concrete pipe would have a 7" wall thickness. Concrete pipes are usually 8 or 12 feet long.
Steel or iron pipe would have wall thickness measured in the fractions of an inch. Lengths would vary from 20 feet (cast iron pipe) up to 60 feet (steel pipe).
Don't most of these construction pipes have a bell on one end?