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.
No.
You should use black pipe -- Galv. pipe will flake off inside of pipe
Yes.
Galvanized Iron pipe
Water does, so I am pretty sure steam will
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.
ya the galvanized pipecan be use in undergrounds,,, because it is an iron pipe
You can't. There is no fitting to do this. Galvanized has to be threaded.
No.
GI Pipe is "Galvanized Iron" Pipe. These days the pipe will likely be made from steel rather than iron.
You should use black pipe -- Galv. pipe will flake off inside of pipe
Yes, it's better pipe.
Yes.
Depends on local codes I use Galvanized piping and fitting when I know the piping is going to be exposed to moisture (dampness) or the elements
Use only black pipe
Galvanized Iron pipe