Ammonium Chloride and Amine Hydrochloride Corrosion||API571||Damage mechanism
Автор: Globe Technical
Загружено: 2026-02-12
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Описание:
Ammonium Chloride and Amine Hydrochloride Corrosion
Description of Damage
Localized corrosion, often pitting, normally occurring under ammonium chloride or amine salt deposits, often in the absence of a free water phase.
Affected Materials
All commonly used materials are susceptible. In order of increasing resistance: carbon steel and low-alloy steels; 300 series SS; duplex stainless steel and Alloys 400, 800, and 825; Alloys 625 and C276; and titanium.
Critical Factors
a) Concentrations of NH3, hydrochloric acid (HCl), and amine salts; temperature; and water availability are the
critical factors.
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