Piping

3 cases · 3 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Austenite Capture method: Aspect Before Analysis clear all

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The nut was sectioned in the longitudinal direction to reveal the position of the Nylon insert.
59
VIEW
ML00062 / Apr.2017
Inconel 718 Lock Nut with Polymer Insert
M - NiCrFe AlloyP - Cold FormedAp - PipingCd - Typical manufacturing
Cm - Aspect Before AnalysisDf - Transverse Section
The main pipe, ND 18", has suffered a pipe through wall cracking at the margin of the 1 1/2" branch socket weld.
664
VIEW
ML00006 / Apr.2017
Vibration Induced Fatigue in 304SS
M - Austenitic Stainless SteelP - Longitudinal Seam Welded PipeAp - PipingCd - Vibration Induced Fatigue
Cm - Aspect Before AnalysisDf - Crack
The external surface of the 2" diameter pipe is rusted and the leakage is associated to “holes” that appear very small at the surface but that open a large hole in the middle of the thickness.
507
VIEW
ML00014 / Apr.2017
Pitting Corrosion in 316SS Pipe
M - Austenitic Stainless SteelP - Seamless PipeAp - FPSOCd - Pitting Corrosion
Cm - Aspect Before AnalysisDf - Corrosion