Steel Black Pipe

Both Galvanized pipe and black pipe are made from steel, but the coating applied to them after forging differs. Galvanized pipe is coated with a layer of zinc to minimize corrosion, while black pipe has a black oxide coating that forms after it is forged.


 

Uses

  • With a lifespan of 40 years, galvanized pipe is primarily used for non-residential water lines and outdoor fixtures that require the strength of steel, such as railings and fence posts. Black pipe is used to move natural gas and air throughout buildings.

Restrictions

  • Water will corrode steel over time, so neither galvanized nor black pipe are used for residential waterlines. Galvanized pipes are not recommended for gas lines, as the zinc coating reacts with the gas and flakes off, eventually causing blockages.

Considerations

  • Galvanized pipes rust from the inside out, so you may have a problem before any noticeable symptoms appear on your pipes. Both types of pipe may corrode and rust at the join site, even if they are joined to non-corroding pipes such as copper or PVC.

Black Pipe

Weight
1/2" Sch 40 Blk Pipe x 21′ 17.87
3/4" Sch 40 Blk Pipe x 21′ 23.75
1" Sch 40 Blk Pipe x 21′ 35.26
1 1/4" Sch 10 Blk Pipe x 21′ 37.93
1 1/4" Sch 40 Blk Pipe x 21′ 47.33
1 1/2" Sch 40 Blk Pipe x 21′ 57.08
2" Sch 40 Blk Pipe x 21′ 76.71
2 1/2" Sch 40 Blk Pipe x 21′ 121.65
3" Blk Pipe x 21′ 159.18
3 1/2"  Blk Pipe x 21′ 191.31
4" Blk Pipe x 21′ 226.59
5" Blk Pipe x 21′ 307.02
6" Blk Pipe x 21′ 398.37
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