Seamless steel pipe (SMLS) is made from a solid round steel billet, which is heated and pushed or pulled over a piercing rod or form until the steel is shaped into a hollow tube. This steel pipe can be made in a variety of thickness from .375 to 4 inches. Seamless steel pipe is preferred for a variety of applications because it can withstand pressure better than other types of steel pipe and is easily available. Seamless steel pipe is available as new or secondary pipe. It is extremely versatile and is manufactured to meet a variety of structural and pressure applications.