What is seamless black steel pipe?

Black steel is made of steel that has not been galvanized. Its name comes from the scaly, dark-colored iron oxide coating on its surface. It's used in applications that don't require galvanized steel.
 

Black steel pipe is manufactured as seamless (seamless black steel pipe) which makes it a better type for gas transportation. It can be used for fire sprinkler system since it can prevent fire better than galvanized pipe. Since it has a dark color surface that is form by iron oxide during the manufacturing process, it is called black steel pipe.

Black steel pipe's strength makes it ideal for transporting water and gas in rural and urban areas and for conduits that protect electrical wiring and for delivering high pressure steam and air. The oil and petroleum industries use black steel pipe for moving large quantities of oil through remote areas. This is beneficial, since black steel pipe requires very little maintenance. Other uses for black steel pipes include gas distribution inside and outside homes, water wells and sewage systems. 

Can I use black steel pipe for water?

Black steel pipes are never used for transporting potable water.Black steel pipe is used to transport water and natural gas from their sources to homes and businesses. Black pipe is also used for fire sprinkler systems because of its strong resistance to heat.Black steel pipe is not suitable for carrying drinking water because it rusts easily.

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