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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046535
EISBN: 978-1-62708-234-1
... Abstract One of five underground drain lines intended to carry a highly acidic effluent from a chemical-processing plant to distant holding tanks failed in just a few months. Each line was made of 304L stainless steel pipe 73 mm (2 in.) in diam with a 5 mm (0.203 in.) wall thickness. Lengths...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001319
EISBN: 978-1-62708-215-0
... Abstract Several type 304L stainless steel dished ends used in the fabrication of cylindrical vessels developed extensive cracking during storage. All of the dished ends had been procured from a single manufacturer and belonged to the same batch. When examined visually, several rust marks were...
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Published: 01 June 2019
Fig. 3 SCC initiated on the liquor side in the type 304L base metal and E308 weldment. Magnification 3× More
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Published: 01 June 2019
Fig. 1 Normal microstructure of AISI 304L austenitic stainless steel (etched with oxalic acid solution, 500×). More
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Published: 01 June 2019
Fig. 2 Normal microstructure of the heat-affected zone in the AISI 304L stainless steel tank (etched with oxalic acid solution, 500×). More
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Published: 01 June 2019
Fig. 3 Appearance of pits adjacent to welds in the AISI 304L stainless steel tank (etched with oxalic acid solution, 3.5×). More
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Published: 01 June 2019
Fig. 4 Appearance of pits in the bottom of the AISI 304L tank bottom (unetched, true size). More
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Published: 01 December 1992
Fig. 2 Transgranular SCC of type 304L stainless steel tubes by chloride. 200×. More
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Published: 01 December 1992
Fig. 5 Typical microstructure of solution-annealed type 304L stainless steel. 142.2×. More
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Published: 01 December 1992
Fig. 5 Samples 4 and 5 prior to removal from type 304L impeller. More
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Published: 01 December 1992
Fig. 13 As-cast type 304L microstructure near blade-to-hub attachment (sample 4). Oxalytic acid electrolytic etch. 62×. More
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Published: 01 December 1992
Fig. 14 As-cast type 304L microstructure from blade trailing edge (sample 5). Oxalytic acid electrolytic etch. 77×. More
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Published: 01 December 1992
Fig. 16 Cross section of as-cast type 304L blade. Leading edge (sample 1). No cracking is visible. Etched in Marble's reagent. 65×. More
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Published: 01 December 1992
Fig. 17 Cross section of type 304L blade (sample 4), showing cracks in base metal and in weld repairs at hub-to-blade attachment. More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001082
EISBN: 978-1-62708-214-3
... Abstract Several large-diameter type 304L stainless steel impeller/propeller blades in a circulating water pump failed after approximately 8 months of operation. The impeller was a single casting that had been modified with a fillet weld buildup at the blade root. Visual examination indicated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0047611
EISBN: 978-1-62708-220-4
... tubes expanded and welded into two type 304L stainless steel tube sheets. The tubes failed by crevice corrosion. The failed tubes were defective as-received, and the establishment of concentration cells within the longitudinal cracks in the seam welds led to ultimate corrosive penetration of the wall...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001655
EISBN: 978-1-62708-220-4
... Abstract This investigation involved two AISI 304L acid storage tanks and one AISI 304L spent solvent tank from a sewage treatment facility. After installation, these tanks were hydrostatically tested using sewage effluent. No leaks were found and after a year or two, the tanks were drained...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001048
EISBN: 978-1-62708-214-3
... Abstract Several type 304L (UNS S30400) stainless steel seamless tubes in a high-pressure synthesis gas cooler condensing ammonia in a fertilizer plant leaked in an unexpectedly short time. Representative samples of the tubes were subjected to chemical analysis, hardness tests, and optical...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c9001562
EISBN: 978-1-62708-230-3
... Abstract The Pandia digester is a long cylindrical vessel which uses alkaline sulfite liquor to cook sawdust for pulping. The inlet cone was fabricated from AISI 304L stainless steel with E308 welds. Typical liquor concentration was approximately 80% NaOH, 20% Na2SO3 with chloride...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001336
EISBN: 978-1-62708-215-0
... Abstract Catastrophic pitting corrosion occurred in type 304L stainless steel pipe flange assemblies in an industrial food processor. During regular service the pumped medium was pureed vegetables. In situ maintenance procedures included cleaning of the assemblies with a sodium hypochlorite...