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English Translations » 石油化工圈(深加工) » On the material selection for heat exchange tubes in waste h

On the material selection for heat exchange tubes in waste heat boilers

2018-09-10View Original

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Can 20# steel be used as the heat exchange tube material in the flue gas-air and flue gas-water heat exchangers of large waste heat boilers in petrochemical plants? Since the flue gas temperature has dropped below 120°C, what material should be used for the economizer in order to balance resistance to dew point corrosion with economic considerations?
Reply #22018-09-10
09CrCuSb, GB150 and the Boiler Code are included in the calculation standards.
Reply #32018-09-10
It is necessary to consider the composition of the flue gas under operating conditions.
Reply #42018-09-10
It mainly depends on the sulfur content in the flue gas.

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Translated at 2026-07-21 04:44:21

Original: https://bbs.hcbbs.com/thread-2057131-1-1.html

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