In this paper, buckling of cylindrical grooved shells under axial load has been examined by theoretical and experimental methods. The shell is made of USA/API – X42 5L steel standards. This material is one of the most common materials used in gas, oil and petrochemical industries. The effect of spiral grooves on cylindrical shell was analyzed, and the results obtained from the Abaqus software w...

This research studies the effect of normalization on ductility and corrosion resistance API 5L X65 pipe. Normalization conducted at a temperature 900 °C with holding time 30, 60, 90, 120, 150 minutes, followed by cooling down to room using an external air. Corrosion testing normalized specimens was performed seawater as corrosive environment, -and were also tested for microhardness determine th...

The ductile fracture arrest may present supplementary requirement for selection of base material for most demanding steel welded structures. The most representative one with such requirement are gas pipelines. Therefore to ensure that the pipeline materials has adequate toughness to arrest a ductile fracture, the pipe material must be designed and tested in accordance with the specific procedur...