July 2021

Special Focus: Plant Design, Engineering and Construction

Evaluation of high-strength steel SA-517-Gr-F for large pressure vessels

Conventionally, carbon steel material has been widely used around the globe for the fabrication of static equipment—such as tall towers, vessels, heat exchangers, etc.—for less-corrosive service.

Chaudhari, A., Kulkarni, M., BASF Chemicals India Pvt. Ltd.

Conventionally, carbon steel material has been widely used around the globe for the fabrication of static equipment—such as tall towers, vessels, heat exchangers, etc.—for less-corrosive service. This material is generally procured in a normalized or quenched and tempered condition to gain benefits towards an exemption from impact test requirements and to obtain a refined grain structure. In this work, the effect of using a high-strength, low-alloy material SA-517-Gr-F has been studied as an alternative to the conventionally used carbon steel SA-516-Gr-60/70, specifically for large towers in a seismic prone zone and extreme weather conditions. The composition of SA-517-Gr-F is ¾ nickel (Ni)

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