"Greg O" wrote in message
...
"Art Todesco" wrote in message
t...
I was always told that black iron pipe joints are "tighter" because the
threads grind
into one another and that this doesn't happen in galvanized pipe. Black
iron was
supposed to be "softer" whatever that means. As I said, this is what I
heard. I really
never believed/understood it..



Sounds like BS to me. When you cut threads on galvanized pipe it cuts off
the galvanized coating, leaving bare metal, same as black pipe.
Greg

yea..but you are talking about two different metals too...