Galvanized steel, copper, brass or CSST (Corrugated Stainless Steel Tubing) also can be used in some areas, but some utilities specifically prohibit the use of copper. Steel piping typically is black with malleable iron or steel fittings. Galvanized steel is used in some areas as well.
In this way, can gas pipe be galvanized?
Galvanized is usually forbidden for nat gas lines. of regular iron pipe and galvanized pipe. Galvanized pipe is simply iron or steel pipe that has been coated with zinc for protection from corrosion. And yes there will be a dissimilar metal or galvanic reaction between black iron and the galvanized coating.