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ASM Failure Analysis Case Histories

Handbook of Case Histories in Failure Analysis

Edited by
Khlefa A. Esaklul
Khlefa A. Esaklul
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ASM International
Volume
2
ISBN electronic:
978-1-62708-215-0
Publication date:
1993
Book Chapter

Failure of a Pipe Slip-on Flange

By
Mohan D. Chaudhari
Mohan D. Chaudhari
Columbus Metallurgical Services, Inc.
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Published:
1993
Page range:
185 - 186

Abstract

A cracked 356 mm (14 in.) diam slip-on flange (Ni-Cr-Mo-V steel) was submitted for failure analysis. Reported results and observations indicated that the flange was not an integral forging or a casting, as specified. It had been fabricated by welding and machining a ring insert within a flange with a larger internal diameter. The flange cracked because the welds between the flange and the insert were inadequate to withstand the bolting pressures. A warning was issued to end users of the flanges, which are being inspected nondestructively for conformance to specifications.

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Mohan D. Chaudhari, 1993. "Failure of a Pipe Slip-on Flange", Handbook of Case Histories in Failure Analysis, Khlefa A. Esaklul

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