NO - but you can cold galvanize it with a spray can of paint and zinc.

The metal inside the pipe is the issue, not outside. Derbs clogging the
regulator was to be prevented.

Martin

engineman wrote:
I have a gas line running to my outdoor hot tub water heater. When I
first installed it 8 years ago I used black iron pipe because i heard
that it was required.
Lately I've noticed that it is heavily rusted where it is lying on the
concrete.
Can I replace it with galvanized?
I get all sorts of answers from google.
Engineman