Handbook of Case Histories in Failure Analysis
Failure of Carbon Steel Superheater Tubes
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Published:1993
Abstract
Two superheater tubes from a 6.2 MPa (900 psig) boiler failed in service because of creep rupture. One tube was carbon steel and the other was carbon steel welded to ASTM A213 Grade T22 (2.25Cr-1.0Mo) tubing. The failure in the welded tube occurred in the carbon steel section. Portions of the superheater were retubed five years previously with Grade 722 material. The failures indicated that tubes were exposed to long-term overheating conditions. While the carbon steel tube did not experience temperatures above the lower transformation temperature 727 deg C (1340 deg F), the welded tube did experience a temperature...
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Member Sign InJoseph P. Ribble, Failure of Carbon Steel Superheater Tubes, Handbook of Case Histories in Failure Analysis, Vol 2, Edited By Khlefa A. Esaklul, ASM International, 1993, p 177–180, https://doi.org/10.31399/asm.fach.v02.c9001330
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