1-20 of 167 Search Results for

large-diameter pipes

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001701
EISBN: 978-1-62708-219-8
... the tubercles was significant, with the threaded areas exhibiting the greatest metal loss. The inner diametral surfaces of the large diameter pipes (2–1/2 inch or 6.35 cms) were generally free of tuberculation, but the surfaces were covered with thick adherent reddish brown scale. Pit depths beneath the scale...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001149
EISBN: 978-1-62708-232-7
... Abstract A large diameter steel pipe reinforced by stiffening rings with saddle supports was subjected to thermal cycling as the system was started up, operated, and shut down. The pipe functioned as an emission control exhaust duct from a furnace and was designed originally using lengths...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0065825
EISBN: 978-1-62708-228-0
... in Large-Diameter Pipe , J. Iron Steel Inst. , Vol 211 , May 1973 , p 369 – 373 Selected References Selected References • Eiber R.J. , Failures of Pipelines , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 1986 , p 695 – 706 10.31399...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001838
EISBN: 978-1-62708-241-9
... Abstract Stainless steel pipe (273-mm OD x 8-mm wall thickness) used in the fabrication of large manifolds developed crack-like decohesions during a routine inductive bending procedure. The imperfections, which were found near the outside diameter, were around 3 mm in length oriented...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001715
EISBN: 978-1-62708-219-8
... that are 6.4 m (21 ft) in diameter and 7.7 m long, making them the largest circular precast structures ever built. These siphons are designated as the Centennial Wash (CWS), Jackrabbit Wash (JWS), Hassayampa River (HRS), Agua Fria River (AFRS), New River (NRS), and Salt River siphons (SRS). The large diameter...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0047537
EISBN: 978-1-62708-228-0
... and embrittlement Joining-related failures During the construction of a large-diameter pipeline, several girth welds had to be cut out as a result of radiographic interpretation. The pipeline was constructed of 910-mm (36-in.) diam × 13-mm (0.5-in.) wall thickness grade X448 (X65) line pipe. The girth welds...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001234
EISBN: 978-1-62708-232-7
... Abstract In a copper hot water system, a bent pipe was soldered into a straight pipe with twice the diameter. The neighborhood of the soldered joint was covered with corrosion product predominantly blue-green in color, presumably carbonates. When these corrosion products were scratched off...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0048117
EISBN: 978-1-62708-235-8
... was nucleated by an apparent longitudinal subsurface defect. The defect was revealed by microscopic examination to be a large pocket of nonmetallic inclusions (alumina and silicate particles) at the origin of the fracture. Partial decarburization of the steel was observed at the periphery of the pocket...
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 an accumulation of gas under a residence and a serious explosion. Applications The 10-cm (4-in.) nominal diameter pipe had been in service for approximately ten years prior to failure. The pipe was operated as an intermediate pressure line, with a nominal pressure of 0.2 MPa (30 psi). It had been attached...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001699
EISBN: 978-1-62708-234-1
.... The system primarily comprised of steel pipes with threaded connections for the 2-inch (46.32 cms) pipes, and bolted flanged couplings for the larger diameter pipes. The large pipes were up to 18 inches (55.72 cms) in diameter. The heat exchangers within the fan coil units mainly consisted of copper coils...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001332
EISBN: 978-1-62708-215-0
... fabricated by welding and machining a ring insert within a flange with a larger internal diameter. Specimen Selection The cracked slip-on flange was received in one piece. It had two diametrically opposite cracks located on the pipe and gasket sides. Testing Procedure and Results Nondestructive...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006409
EISBN: 978-1-62708-217-4
... that are sealed with teflon-type tape when installed. Investigation Longitudinal cracks were located near the opening of the female ends of each connector ( Fig. 1a ). Both connectors had the same size female end but different size male ends. The connector with the large diameter and longer male end had...
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
..., before all the lines were completed. Type 304L stainless steel was selected from a number of alloys after extensive laboratory testing of corrosion resistance to the highly corrosive liquid. Each line was made of pipe 73 mm (2 7 8 in.) in diameter with a 5 mm (0.203 in.) wall thickness...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048747
EISBN: 978-1-62708-229-7
... contributed to the failure. Recommendations included changing the joint design to incorporate a large-radius corner and improving fitting of the components to permit full weld penetration. Backing strips were suggested to increase weld quality, and the pipe wall thickness was increased from 8 to 9.5 mm...
Image
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
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048850
EISBN: 978-1-62708-229-7
... of the failed pipe was found to consist of a matrix precipitate array (M23C6) and large s-phase particles in the grain boundaries. A portable grinding tool was used to prepare the surface and followed by swab etching. All material upstream of the boiler stop valve was revealed to have oriented the cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0091384
EISBN: 978-1-62708-219-8
... axis. The perforations and the crack were at the 6 o'clock position. Investigation Visual examination of the pipe showed two large holes ( Fig. 1a ). The areas surrounding the holes showed delaminations and corrosion deposits. Radiography was performed to evaluate the material quality...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001235
EISBN: 978-1-62708-228-0
... from the entrance of the 12 km long pipe line that was operated under 60 atm. pressure. Where the pipes had not rusted their inner surfaces showed a black film, and also large flat blisters ( Fig. 1 ) when observed obliquely. Ultrasonic testing also showed separations at many places where...
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
... may include, but is not limited to: Date of installation Piping material grade Diameter and wall thickness Seam weld type (if any) Coating type Cathodic protection information Previous hydrotest results (including dates, pressures, and times) In-line inspection results...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048846
EISBN: 978-1-62708-234-1
... Abstract A main steam pipe was found to be leaking due to a large circumferential crack in a pipe-to-fitting weld in one of two steam leads between the superheater outlet nozzles and the turbine stop valves (a line made of SA335-P22 material). The main crack surface was found to be rough...