Ordinary steel is carbon steel, that is, iron - carbon alloy. According to the carbon content, it is divided into low carbon steel (to be known as wrought iron), medium carbon steel and cast iron. Generally, those containing less than 0.2% carbon are called low carbon steel, commonly known as wrought iron or pure iron: those with a content of 0.2-1.7% are called pig iron with a content of 17% or more.

Pre-installation: the most important link of the pre-installation of the sleeve type pipe joint, directly affects the reliability of the seal. Special precursors are generally required. Small diameter joints can be preinstalled on the bench pliers.

Do not add sealant and other fillers. Some people in order to achieve better sealing effect, on the card sleeve coated with sealant, sealant was flushed into the hydraulic system, causing hydraulic components nikong plug and other failures.

Metal hose joint is divided into threaded, flange disc type, fast type. Shared by carbon steel pipe nipple supplier.