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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001820
EISBN: 978-1-62708-180-1
... Abstract This article describes the failure characteristics of high-pressure long-distance pipelines. It discusses the causes of pipeline failures and the procedures used to investigate them. The use of fracture mechanics in failure investigations and in developing remedial measures is also...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001171
EISBN: 978-1-62708-219-8
... Abstract The defects observed along weldings of stainless steel pipelines employed in marine environments were evidenced by metallographic and electrochemical examination. A compilation of cases on the effect of defective weldings, in addition to improper choice of stainless steel for water...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006822
EISBN: 978-1-62708-329-4
... Abstract This article discusses the failure analysis of several steel transmission pipeline failures, describes the causes and characteristics of specific pipeline failure modes, and introduces pipeline failure prevention and integrity management practices and methodologies. In addition...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001586
EISBN: 978-1-62708-228-0
... Abstract On 9 March 2000, a gasoline pipeline failed near Greenville, TX releasing approximately 12,000 barrels of fuel. After the on-scene portion of the investigation was completed, an 8.5 ft. (2.6 m) section of the 28 in. (71 cm) diam pipe was sent to the materials laboratory for examination...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001822
EISBN: 978-1-62708-241-9
... showing the faint horizontal striations and fine steps Fig. 7 Misaligned pipe supports at a pipe mill storage yard Abstract A newly installed pipeline leaked during cleaning prior to hydrotest at a pressure of approximately 400 psig. The intended hydrotest pressure was 750 psig...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001148
EISBN: 978-1-62708-228-0
... Abstract A natural gas pipeline explosion and subsequent fire significantly altered the pipeline steel microstructure, obscuring in part the primary cause of failure, namely, coating breakdown at a local hard spot in the steel. Chemical analysis was made on pieces cut from the portion...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001275
EISBN: 978-1-62708-215-0
... to the 10-cm (4-in.) steel main to extend the main. Smaller service lines carried gas from the mains to the residences. Acommon maintenance practice on PE pipelines is the use of a bar clamp to squeeze the pipe flat whenever the flow of gas is to be stopped for down-stream maintenance. This greatly reduces...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c9001565
EISBN: 978-1-62708-230-3
... C (375 deg F) and the solution contained approximately 700 ppm chlorides. Liquid penetrant inspection of the pipeline showed the leaks were numerous and confined adjacent to the welds. A metallographic specimen from the circumferential weld showed the cracks initiated at the inside surface...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001823
EISBN: 978-1-62708-241-9
... surface at the feature Abstract A section of pipe in a hydrocarbon pipeline was found to be leaking. The pipeline was installed several decades earlier and was protected by an external coating of extruded polyethylene and a cathodic protection system. The failed pipe section was made from API 5L...
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Published: 01 June 2019
Fig. 1 Stainless steel pipeline for carrying hot nitrogen gas from heater to turbine that failed in the bellows section because of grain-boundary embrittlement. Dimensions given in inches More
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Published: 01 June 2019
Fig. 1 Paper replica of failed section of pipeline indicating crack path and direction as determined from Chevron markings. More
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Published: 01 June 2019
Fig. 2 Schematic of section of pipeline which ruptured in service. More
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Published: 01 June 2019
Fig. 3 Schematic of ruptured portion of section of pipeline that failed in service. Dotted lines indicate subsequent torch cuts. Shaded region was partially protected from heat of fire by a dirt cover. More
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Published: 01 June 2019
Fig. 4 Microstructures of pipeline steel at various locations relative to the fracture origin site: 10 in. from fracture origin, 400× (upper, left); 8in., 400× (upper, center); 1.5 in., 400× (upper right); at fracture origin, 1000× (lower, left); and at fracture origin, 3600× (lower, right). More
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Published: 01 June 2019
Fig. 1 Failed girth weld in a large-diameter pipeline. (a) Crack that initiated at the root and propagated through 50% of wall thickness. 4×. (b) Detail showing crack-initiation site due in part to incomplete fusion on pipe side wall. 12.5× More
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Published: 01 June 2019
Fig. 1 An overall view of the submitted section of pipeline. Bracket a indicates the center region of the crack, and arrows c indicate cracks in the coating. More
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Published: 01 January 2002
Fig. 8 Cathodic protection of a buried pipeline using a buried magnesium anode. Source: Ref 6 More
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Published: 01 January 2002
Fig. 9 Impressed-current cathodic protection of a buried pipeline using graphite anodes. Source: Ref 6 More
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Published: 01 January 2002
Fig. 8 Stepwise cracking of a low-strength pipeline steel exposed to hydrogen sulfide (H 2 S). 6× More
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Published: 01 January 2002
Fig. 40 Hydrogen-induced cracking in pipeline steel More