Table of Contents

Section 1 – Deposits on the Water and Steam Side Water and Steam Formed DepositsCause of DepositionDeposit Related ProblemsSection 2 - Overheating Short Term OverheatingLong Term OverheatingSection 3 - Waterside Corrosion and DamageWaterside CorrosionCaustic CorrosionLow pH During ServiceHydrogen DamagePhosphate CorrosionChelant and Complexing Agent CorrosionOxygen CorrosionCorrosion During CleaningStress Assisted CorrosionPartingGraphitic CorrosionDealloyingWaterside Flow Related DamageCavitationFlow Accelerated CorrosionErosionSection 4 –Cracking CrackingCorrosion FatigueStress Corrosion CrackingSection 5 - Fireside Corrosion and DamageOil Ash CorrosionCoal Ash CorrosionWaterwall Fireside CorrosionCold End CorrosionDew Point CorrosionErosionSection 6 - Material DefectsForming DefectsWelding Defects

About the Author

Nalco, an Ecolab company, is the global leader in water, hygiene, and energy technologies and services that protect people and vital resources. Ecolab delivers comprehensive solutions and on-site service to ensure safe food, maintain clean environments, optimize water and energy use, and improve operational efficiencies for customers in the food, healthcare, energy, hospitality, and industrial markets in more than 170 countries around the world.