High Pressure 90 degree elbow pipe/Swivel joints Nominal Size:2"-4" Pressure Rating:2000-15000PSI Material:Alloy Steel Standard:API 16C Pipe Elbows are mainly used for connecting two pipes or tubes,allowing a change of direction.We can provide short radius elbows and long radius elbows.Usually,pipe elbows are made of carbon steels,alloy steels,stainless steel,and etc.