CAPPGuidetoMR0175/ISO1516RayGoodfellowPangeaSolutionsInc
ChairmanoftheCAPPCommitteeonGuidetoMR0175/ISO15156OverviewHistoryofMR0175BackgroundonCAPPSourMaterialsSubcommitteeCAPPcommitteedocument,reviewofthemajorsections:NACEMR0175/ISO15156InterpretationandMaintenanceImportantchangesfromNACEMR0175toNACEMR0175/ISO15156Equipmentuser’sapplicationguidelineforMR0175/ISO15156HistoryfortheDevelopmentofNACEMR0175OilproductionanddrillingequipmentbegantofailinCanadaandtheWesternUnitedStatesasreservesweredevelopedthatcontainedhydrogensulfide(H2S)
Themodeoffailurewassulfidestresscracking(SSC)thatoccurredbelowtheconventionalmechanicaldesignstressesforequipment
Failurecouldoccurindaystomonthsafterexposure
Failurewasbelowtheyieldstrengthandoftenbrittleinnature
Strongerandhardermaterialschosentoal