Corrosion Mechanisms and Prevention in Seamless Pipes
Date:2025-03-26View:124Tags:x70 pipe,saw pipe,sch40 seamless pipe
Seamless pipes used in harsh environments face various forms of corrosion, affecting longevity and performance.
Types of Corrosion Affecting Seamless Pipes:
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Pitting Corrosion: Localized attack, common in chloride-rich environments (e.g., offshore drilling).
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Sulphide Stress Cracking (SSC): Occurs in H₂S-containing sour gas applications.
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Erosion-Corrosion: High-velocity fluid causes synergistic mechanical and chemical wear.
Prevention Techniques:
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Use of Alloyed Materials: Duplex stainless steels and inconel-clad pipes.
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Surface Treatments: Epoxy coatings, zinc phosphate treatment.
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Cathodic Protection: Sacrificial anode systems for subsea pipelines.
Industries Most Affected:
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Desalination plants (high chloride exposure).
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Chemical processing plants (acidic environments).
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