Refinery material selection recommendations
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Refinery material selection suggestions (part) Carbon steel is the main material for low-temperature corrosion parts, which is mainly solved by process anti-corrosion. If the corrosion is severe, higher materials can be considered, such as 304, 316, duplex steel, Monel, etc. However, when selecting sensitized austenitic stainless steel, attention should be paid to the influence of harmful anions (such as chloride ions, etc.) to prevent pitting corrosion or stress corrosion cracking. For high-sulfur and low-acid crude oil, corrosion is mainly caused by high-temperature sulfur at high temperatures. Material selection should be based on field experience and API 581 standards, and refer to the McConomy curve. For material conveying pipelines, the medium temperature
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