Welded Joint

3 cases · 3 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Product: Cladding Standard: ALLOY clear all

Welded Joint — sub-branches

Welded Joint 3

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The 6 1/2" nominal diameter longitudinal seam welded pipe is internally cladded with Alloy 625. The pipe was manufactured by forming a cladded plate (probably welded by rolling) and welding it longitudinally. The pipe was heat treated (quenched and tempered) after the seam weld.
98
VIEW
ML00133 / May.2018
Seam Welded Pipe Cladded with Alloy 625
M - LAS / Ni AlloyP - Longitudinal Seam Welded PipeAp - Oil and GasCd - Welding
Cm - Aspect Before AnalysisDf - Welded Joint
The 4 1/2" nominal diameter seamless pipe internally overlaid with Alloy 625. This pipe corresponds to a 90° curve. The overlaid pipe was heat treated before and after bending. The final quenching and tempering heat treatment was conducted to meet API 5L X70 properties.
113
VIEW
ML00132 / May.2018
Seamless Pipe Overlaid with Alloy 625
M - LAS / Ni AlloyP - Seamless PipeAp - Oil and GasCd - Welding
Cm - Aspect Before AnalysisDf - Welded Joint
Macrography of the tubular forging, butt welded using a LAS filler metal, and overlaid using Inconel 625 filler metal. The micrographic characterization was conducted for the HAZ of the overlay and for the HAZ of the butt weld, at the root position (with several welding cycles) and at the face.
608
VIEW
ML00102 / May.2018
AISI 4130 Forging Welded and Overlaid
M - Low Alloy SteelP - CladdingAp - Oil and GasCd - Welding
Cm - Electrolytically Etched MacroDf - Welded Joint