November 2014

Maintenance and Reliability

Is your plant vulnerable to a brittle fracture?

Much of the process equipment operating today was designed to construction codes that did not require a formal evaluation for low-temperature considerations. Metal temperature highly influences the fr..

Macejko, B., The Equity Engineering Group, Inc.

Much of the process equipment operating today was designed to construction codes that did not require a formal evaluation for low-temperature considerations. Metal temperature highly influences the fracture toughness of construction materials of plant equipment. At low temperatures, some materials tend to behave in a brittle manner, making it much more susceptible to fracture. The author discusses methods to identify potential brittle-fracture conditions in process equipment before failures occur. BACKGROUND The majority of pressure equipment used in the refining and petrochemical industry is constructed of carbon or low-alloy steel. Metal temperature highly influences the fracture tough

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