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Methods to Assess Carburization Damage and Remaining Life in Fired Heater Tubes

Product Number: 51323-18771-SG

Author: Jeff Goldstein

Publication Date: 2023

$20.00

Fired heaters in coking service are susceptible to carburization damage, which needs to be predicted and managed to prevent unexpected downtime and expedited replacement costs. Carburization damage occurs when carbonaceous material, i.e., coke, is deposited on a steel surface and exposed to high metal temperatures; such are the internal conditions present in fired heater tubes in coking services. At these high temperatures, the carbon diffuses into the steel microstructure and increases the hardness while reducing ductility. At an advanced state, this reduction in ductility may lead to tube failure if a mechanical or thermal shock is applied. The diffusion of carbon can also cause the formation of deleterious chromium carbides in the steel microstructure, reducing the high temperature corrosion resistance in those areas.

Products tagged with 'life assessment.'

Methods to Assess Carburization Damage and Remaining Life in Fired Heater Tubes

Association for Materials Protection and Performance