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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048091
EISBN: 978-1-62708-224-2
... and welding. The metal was identified to be 1020 steel. It was indicated by the coarse as-rolled structure (grain size of ASTM 00 to 4) of the base metal that the weldment (stop block and guide) had not been normalized. The brittle failure was evaluated to have been initiated at a metallurgical and mechanical...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048060
EISBN: 978-1-62708-224-2
...Abstract Abstract The crane hook (rated for 13000 kg) failed in the threaded shank while lifting a load of 9072 kg. The metal in the hook was revealed by chemical analysis to be killed 1020 steel. It was disclosed by visual examination that the fracture had at the last thread on the shank...
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Published: 01 January 2002
Fig. 37 Tensile fracture of a 1020 steel showing slanted fracture intersecting the outside surface at an angle More
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Published: 01 January 2002
Fig. 38 Fractured 1020 steel showing an angled connection between a cup portion on one half of the fractured bar and a cup portion on the other half More
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Published: 01 January 2002
Fig. 5 Surface of 1020 steel eroded by SiC at 80 m/s (260 ft/s) and 30° impact angle More
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Published: 01 January 2002
Fig. 6 Erosion rates of 1020 steel by 180 to 250 μm (7 to 10 mil) particles at 80 m/s (260 ft/s) More
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Published: 01 January 2002
Fig. 1 Exposure to vibratory cavitation of normalized AISI 1020 steel. (a) Damage after 5 min. (b) Material removal after 10 min More
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Published: 01 January 2002
Fig. 12 Typical design of a 45,360-kg (50-ton) capacity 1020 steel C-hook with a stress-relief groove at end of threads and well-proportioned radii in body. Dimensions given in inches More
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Published: 01 January 2002
Fig. 13 13,600-kg (15-ton) 1020 steel crane hook that failed in fatigue. View of a fracture surface of the hook showing beach marks. Original and improved designs for the nut and the threaded end of the hook are also shown. Dimensions given in inches More
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Published: 30 August 2021
Fig. 32 Typical design of a 45,360 kg (50 ton) capacity grade 1020 steel C-hook with a stress-relief groove at end of threads and well-proportioned radii. Dimensions given in inches More
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Published: 30 August 2021
Fig. 33 13,600 kg (15 ton) grade 1020 steel crane hook that failed in fatigue. View of a fracture surface of the hook showing beach marks (right). Original and improved designs for the nut and the threaded end of the hook are also shown (left). Dimensions given in inches More
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Published: 30 August 2021
Fig. 16 Centerline hot crack in AISI/SAE 1020 steel More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c0048087
EISBN: 978-1-62708-231-0
...Abstract Abstract Several of the welds in a hoist carriage tram-rail assembly fabricated by shielded metal arc welding the leg of a large T-section 1020 steel beam to the leg of a smaller T-section 1050 steel rail failed in one portion of the assembly. Four weld cracks and several indefinite...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001017
EISBN: 978-1-62708-219-8
...Abstract Abstract A 10-in. diam, spiral-welded AISI 1020 carbon steel pipe carrying water under pressure developed numerous leaks over a four mile section. The section was fabricated using submerged-arc welding from the outside surface. Each welded length of pipe had been subjected to a proof...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047059
EISBN: 978-1-62708-217-4
...Abstract Abstract The governor on an aircraft engine failed and upon disassembly of the unit, it was discovered that the retainer for the flyweight pivot pins was broken. The channel-shaped retainer was made of 0.8 mm (0.030 in.) thick 1018 or 1020 steel. The part was plated with copper, which...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048068
EISBN: 978-1-62708-224-2
... measure, the chain-sling hook was replaced with one made of normalized, fully killed, finegrain 1020 steel. Acicular structure Cranes Normalizing (heat treatment) 1015 UNS G10150 Metalworking-related failures Fatigue fracture A hook on a two-leg chain broke while lifting a 4990-kg (11,000...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001125
EISBN: 978-1-62708-214-3
...Abstract Abstract An 1100 aluminum alloy connector of a high-tension aluminum conductor steel-reinforced (ACSR) transmission cable failed after more than 20 years in service, in a region of consider able industrial pollution. The steel core was spliced with a galvanized 1020 carbon steel sheath...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001315
EISBN: 978-1-62708-215-0
...Abstract Abstract AM350 stainless steel bellows used in the control rod drive mechanism of a fast breeder reactor failed after 1000 h of service in sodium at 550 deg C (1020 deg F). Helium leak testing indicated that leaks had occurred at various regions of the welded joints between...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001317
EISBN: 978-1-62708-215-0
... portions of the vessel. Both dished ends were manufactured from the same batch and were supplied by the same manufacturer One of the dished ends had been exposed to sodium at 550 deg C (1020 deg F) for 500 h before failure due to sodium leakage was detected. The other dished end was used to fabricate...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001331
EISBN: 978-1-62708-215-0
... material was 1020 carbon steel, not P22. The misapplication of pipe material was considered to be a contributing factor. Position of the pipe within the system caused the localized damage. Localized damage 1020 UNS G10200 Hydrogen damage and embrittlement Brittle fracture Background...