Description
Estimated time: 1 hour
Language: English
Summary of the lecture
This course outlines the performance of stainless steel in municipal wastewater treatment environments, highlighting why grades such as 304L and 316L have become standard materials for aeration systems, sludge handling, digester gas lines, and structural components. It summarizes corrosion-test data from real operating conditions, compares stainless steel with carbon steel, and explains how design, fabrication practices, flow conditions, and chemical additives influence long-term durability. Practical considerations—including welding quality, pickling, mitigation of crevice corrosion, and the impact of chlorides, chlorine, and ferric compounds—are also addressed to support reliable material selection and plant performance.
What you will learn:
- Identify the key reasons stainless steels outperform carbon steel in municipal wastewater treatment plants.
- Distinguish between the corrosion resistance of different stainless-steel grades, particularly 304L and 316L, under varying pH, oxygen levels, and chemical exposures.
- Interpret corrosion-test data from multiple wastewater environments and apply it to material selection.
- Recognize the role of fabrication practices—such as full-penetration welding, inert backing gas, and removal of heat-tint scale—in achieving long service life..
- Evaluate situations where higher-alloy materials or specific design measures are needed to prevent crevice corrosion, MIC, or chloride-related damage.
- Apply life-cycle cost concepts to compare stainless steel with coated or galvanized carbon steel in long-term wastewater applications.
Course includes
- 1 Lesson
- Steel Applications
