What are Black Steel Pipes? Differences Between Black Steel Pipes and Carbon Steel Pipes (PDF)

Black steel pipes are a type of steel pipes that have been subjected to a blackening process, giving them their characteristic dark appearance. These pipes are also known as black iron pipes or black malleable iron pipes. Unlike other steel pipes that have a shiny, silver-grey surface, black steel pipes have a dark and matte finish, which sets them apart in terms of aesthetics and applications.