Because it works on the medium being used
Black pipe is an amateur term for common steel or iron pipe.
on a hoist
a black pipe can not be used in plumbing.Of course black pipe has many used in "plumbing" gas fitting and steam fittingPneumatic lines are specified as black , Fire suppression systems black pipe, gas piping , oil supply , steam and hydronics black pipe
Bi pipe is a black iron pipe.
Black of course
With a pipe threader.
No. Australian pipe threads are metric and the US is not.
carbon .
Black iron pipe is used for gas installations but ONLY if the piping is indoors. Outdoor gas piping is usually done in galvanized pipe. Steam is also piped with black pipe, fire sprinkler and standpipe systems also use black pipe.
You need at least a 3 in. pipe -- shower is 2 in. pipe
The pipe usually goes under the slab.
What is actually broken the flnge ring rusted out and broke or the abs pipe? Abs pipe/flange broken: Use a ram bit to cut it out and install a new one. http://www.plumbingsupply.com/pvcsaver.html use a compression or expansion flange http://www.plumbingsupply.com/toiletflanges.html or just cut the pipe and put in a new one Flange ring rusted/broken: install a toilet flange repair ring or a spanner flange.