The Society of Chemical Engineers, Japan (SCEJ), and The Japan Petroleum Institute (JPI) have jointly surveyed the experience of so called Chloride-SCC resistant stainless steels in petrochemical plants and refinery plants. The survey covered more than one hundred cases of
applications of duplex stainless steels, 400 series stainless steels, high nickel alloys and austenitic stainless steels. The survey included the followings : First, countermeasures taken in advance of or after the occurrence of the damage. Second, environmental conditions of the equipment considered. And third, performance of the adopted countermeasure materials. As a conclusion, detailed analysis has clarified safe limits of SCC resistant alloys, some unexpected weak points, and remarkable performances. Keywords: SCC, chloride cracking, stainless steels, duplex SS, high purity ferritic SS, high nickel alloys, application limits, materials selection, field survey, process plant