1997 · 14 citations · 0 references
Natural SciencesMaterials EngineeringMaterials ScienceCorrosion ScienceMechanical Behavior Of MaterialsMetallurgyCorrosion EngineeringCorrosion Of SteelsCorrosion TestingCorrosion-resistant MaterialsStainless SteelsSteel MaterialsHeat Treatment EffectsSour Service CorrosionSteel Corrosion ResistanceSteelsStress Corrosion Cracking TestingWeldability AssessmentWelded JointsWelding Metallurgy
Abstract It has been carried out a test programme to qualify welded super 13%Cr stainless steels for sour service applications. The test programme included weldability trials, weld simulations, mechanical testing and corrosion testing of 13%Cr steels from five different steel mills. Two of the tested steels have been qualified for use as flowline materials in some parts of new sour service fields. The result shows excellent weldability properties and acceptable corrosion properties. Post weld heat treatment (PWHT) of the welds improved the resistance towards sulphide stress corrosion cracking significantly.