Removed From Service

2 cases · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Product: Shaft Capture method: Aspect Before Analysis clear all

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The shaft was removed from service without a failure. It was 4' long and the diameters varied from 2 1/2" to 4 1/2". It was analyzed to be specified for purchasing a new one but properties evidenced bad ductility and brittle behavior even at ambient temperature, associated to a microestruture "as hot rolled".
1238
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ML00152 / Dec.2018
Low Alloy Steel Pump Shaft
M - High Strength Low AlloyP - ShaftAp - Oil and GasCd - Removed From Service
Cm - Aspect Before AnalysisDf - General View
The shaft presented a light wear at the end of the life. See the schematic drawing in the next figure
598
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ML00064 / Apr.2017
SAE 1045 Steel Shaft
M - Medium Carbon SteelP - ShaftAp - Mechanical IndustryCd - Removed From Service
Cm - Aspect Before AnalysisDf - At the Surface