You probably heard about black steel pipes. Perhaps, you may have seen one from hardware and plumbing professionals doing the installation. Are you wondering what is a black steel pipe? In this article, I will share with you information about black steel pipes. Black steel is a non-galvanized type of steel, which means it has no zinc coating. It is called black steel because of its color. It is black because of the iron oxide coating on the surface of the pipe done during manufacturing. This type of pipe is used in carrying natural gas or propane to both commercial buildings and residential properties. The entire pipe is seamless because it is manufactured without a seam. It is the best pipe that is used to carry gas because of its seamless characteristics. Instead of galvanized pipe, most use black steel pipes on fire sprinklers because of its ability to resist fire. Though the black steel pipe transports gas, it is not used in transporting water. It corrodes in water and the mineral...