Products tagged with 'fusion bonded epoxy'

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06057 Hidden Problems with Three Layer Polypropylene Pipeline Coatings

Product Number: 51300-06057-SG

ISBN: 06057 2006 CP

Author: Ali N Moosavi, Salim Al-Mutawa, Salah Balboul and Mostafa Saady

Publication Date: 2006

$20.00

Two large scale problems with three layer polyolefin (3LPO) coatings are discussed here and possible reasons for the failures. Lessons learned and recommendations for future usage of such coatings are provided.

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Failure Investigation of Internal Girth Weld Coating Surface Preparation: A Case Study

Product Number: MPWT19-14360

Author: Rashed Alhajri, Yousef Alrayes, Fahad Alhindas, Ghassan Bahamden

Publication Date: 2019

$0.00

During the construction of a 56km long 16 in. carbon steel sour gas pipeline, repetitive surface
preparation failures were detected during visual inspection of pipeline girth weld internal surface prior to
coating application. Such failures represented 67% of the total pipeline girth welds and were manifested
by excessive sharp-edges at the root pass. To identify the failure causes, an investigation was
performed through reviewing the pipeline, fabrication and coating application specifications and
procedures, quality control records and performing an extensive visual inspection through an advanced
video robotic crawler on all pipeline girth welds made. Upon investigation analysis, the failures were
caused by sharp-edges in the root pass which were attributed to improper practices during
manufacturing, field fabrication and pre-coating quality control. The failure analysis indicated that the
mechanized Gas Metal Arc Welding process, with the parameters used, was not suitable for internal
girth weld coating application. In addition, a more stringent requirement should be applied to the
acceptable pipe-end diameter tolerance and pre-coating quality control to ensure absence of similar
premature surface preparation failures. The pre-coating quality control can be improved through
utilization of robotic laser contour mapping crawler for precise detection and sizing of unsatisfactory
surface weldment defects, including sharp edges.

Available for download

SP0394-2013 (formerly RP0394), "Application, Performance, and Quality Control of Plant-Applied Single Layer Fusion-Bonded Epoxy External Pipe Coating”

Product Number: 21064-SG

Publication Date: 2013

$179.00

HISTORICAL DOCUMENT. Qualifying and controlling the quality of plant-applied, single-layer fusion-bonded epoxy (FBE) coatings to the external surfaces of carbon steel pipe. Proper application, inspection and repair.

NOTE: NACE SP0394-2013—Editorial corrections were made to Table 3 and Table 4 in 2018-04-04.

Products tagged with 'fusion bonded epoxy'

06057 Hidden Problems with Three Layer Polypropylene Pipeline Coatings

Failure Investigation of Internal Girth Weld Coating Surface Preparation: A Case Study

SP0394-2013 (formerly RP0394), "Application, Performance, and Quality Control of Plant-Applied Single Layer Fusion-Bonded Epoxy External Pipe Coating”

Association for Materials Protection and Performance