ASM Failure Analysis Case Histories: Power Generating Equipment
Coal-Ash Corrosion of a Chromium-Molybdenum Steel Superheater Tube
-
Published:2019
Abstract
The top tube of a horizontal superheater bank in the reheat furnace of a steam generator ruptured after seven years in service. The rupture was found to have occurred in the ferritic steel tubing (2.25Cr-1Mo steel (ASME SA-213, grade T-22)) near the joint where it was welded to austenitic stainless steel tubing (type 321 stainless steel (ASME SA-213, grade TP321H)). The surface temperature of the tube was found to be higher than operating temperature in use earlier. The ferritic steel portion of the tube was found to be longitudinally split and heavily corroded in the region of the rupture....
Sign in
ASM members
Member Sign InCoal-Ash Corrosion of a Chromium-Molybdenum Steel Superheater Tube, ASM Failure Analysis Case Histories: Power Generating Equipment, ASM International, 2019, https://doi.org/10.31399/asm.fach.power.c0048331
Download citation file:
Join Failure Analysis Society
The ASM Failure Analysis Society (FAS) is a community where failure analysis professionals from all over the world can learn and grow in their field