OBJECTIVE OF THE STUDY

The objective of the  is to determine proper method for selection of materials.The construction of engineering project,design and structural activities may fail due to corrosion effect and fatigue failures. The selection of materials and effect of corrosion is confirmed  through experimentation and results  carried out  by engineer.Microbiological influenced  corrosion (MIC) has become accepted as form of corrosion that occurs in stainless steels.Reports during the last fifteen years have cited numerous examples of MIC as the explanation of corrosion failures in this steels.The most highly alloyed grades have been specifically designed for high resistance to localized corrosion. The high performance stainless has a long service history of successfully handling seawater in power plant condensers and in offshore drilling platform (KOVACH,1995).