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Crevice Corrosion in a Subsea System — Aspect Before Analysis

Application: Structure Microstructure: Columnar Grains Capture method: Identification drawing clear all

API — sub-branches

5L 1

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Schematic drawing of the API 5L X52 pipe, butt welded to another pipe, showing the 4 cap passes. The pipe is nominal diameter 8" and thickness 1/2". The qualification of the WPS was conducted according to the structural code, with toughness requirements (Charpy V at 0°C), with 4 lateral bending tests, all approved, and 2 welded joint tensile tests, one with ruptured in the base metal and the other ruptured in the weld metal, both presenting strenght level higher than the minimum specified. The pipe was tensile tested.
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ML00153 / Jan.2019
X52 in a Tubular Structure
M - CMn SteelP - Seamless PipeAp - StructureCd - Qualified
Cm - Identification drawingDf - Welded Joint