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ring type pipe joint

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001774
EISBN: 978-1-62708-241-9
... formation of polythionic acid in the process gas. ring type pipe joint fracture polythionic acid stainless steel transgranular fracture fractography creep strength 347 (austenitic wrought stainless steel) UNS S34700 321 (austenitic wrought stainless steel) UNS S32100...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001469
EISBN: 978-1-62708-229-7
... Abstract In a main range in a power station, steam was conveyed at a pressure of 645 psi, and a temperature of 454 deg C (850 deg F). Pipe diameter was 9 in. and the joints were of the bolted type in which a thin steel ring, serrated on both sides, was inserted between plain flanges. Thin...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001793
EISBN: 978-1-62708-241-9
... initially through the weld metal and, subsequently, through the concentric pipe. The morphology and disposition of the fracture was similar in several welded joints and, in some cases, in both wire tips, with cracks propagating and meeting at some intermediate point, resulting in a window-type failure, as...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0089752
EISBN: 978-1-62708-219-8
... killed ingots. Aqueducts Ductile brittle transition Fillet welds Joint design Piping Preheating Stress concentration Welding defects ASTM A572 grade 42 Type 2 Brittle fracture Joining-related failures A 208 cm (82 in.) ID steel aqueduct fractured circumferentially at two points 152 m...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001055
EISBN: 978-1-62708-214-3
.... Certified test results from the steel mill, procedure qualification tests of the welding, and design changes to reduce water hammer were also recommended. Impact toughness Notch sensitivity Pipe joints Pipe Water pipelines Welding parameters ASTM A283 grade D UNS K02702 Joining-related...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0091394
EISBN: 978-1-62708-227-3
...: Piping Material: Type 316/316L stainless steel, schedule 40, 64 mm (2.5 in.) diam and larger pipe was used. Pitting Damage: Observed through pipe wall directed from interior to exterior. Most pits were leaking in the HAZ at the weld joints. Some pitting was found midlength at the bottom of the pipe...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001536
EISBN: 978-1-62708-229-7
....) in diameter and 250 to 460 mm (10 to 18 in.) long. Each included a heavy-walled cylindrical cap threaded to an externally threaded pipe or tube, both fabricated of type 304 stainless steel, with a circumferential canopy weld sealing the joint between the two pieces. This weld provided the seal...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001064
EISBN: 978-1-62708-214-3
... unsound joints and welds. Locally available water is commonly used for hydrotesting. Subsequently, the water is often resident in the pipes and vessels for an extended period, until the process plant comes “on stream.” In the case of mild steel pipework, hydrotest/storage waters are commonly treated...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001114
EISBN: 978-1-62708-214-3
... Abstract An API type 2 steel clamp located on the riser of a semisubmersible drilling rig between the lower ball joint and riser blowout preventer (BOP) conductor failed after 7 years of service. Failure analysis revealed the cause of failure to be the low toughness of the clamp material...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
... section briefly discusses only the general characteristics and types of weld discontinuities. The roles of cooling rate (base metal thickness and joint configuration), composition of the base metal (carbon equivalent), level of hydrogen in the welding process, pre-heat and post-heating, as well as the...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001813
EISBN: 978-1-62708-241-9
... weld joint, (see area 4H), although the base metal very close to this joint does not even provide significant evidence of pearlite decomposition in areas 4B and 4G. In the Case 2, the planar arrangement of graphite nodules is seen only at one side of a welded joint of a ring of a carbon steel sheet...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
..., that are used in assemblies in which the load is primarily shear. A malleable collar is sometimes swaged or formed on the pin to secure the joint. Special-purpose fasteners, many of which are proprietary, such as retaining rings, latches, slotted springs, and studs, are designed to allow easy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
... Abstract This article explains the main types and characteristic causes of failures in boilers and other equipment in stationary and marine power plants that use steam as the working fluid with examples. It focuses on the distinctive features of each type that enable the failure analyst to...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003560
EISBN: 978-1-62708-180-1
... with abrasive wear. Fretting wear is material loss that is due to very small amplitude vibrations at mechanical connections, such as riveted joints. This type of wear is a combination of oxidation and abrasive wear. Oscillation of two metallic surfaces produces tiny metallic fragments that oxidize and...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
.... Bickford J.H. , Introduction to the Design and Behaviour of Bolted Joints , 3rd ed. , Marcel Dekker , 1995 Every structure has a load limit beyond which it is considered unsafe or unreliable. Applied loads that exceed this limit are known as overloads and sometimes result (depending on...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
... characteristics of fretting wear, with an emphasis on steel, are reviewed in this article. This review is followed by several examples of failures related to fretting wear. Common sites for fretting are in joints that are bolted, keyed, pinned, press fitted, or riveted; in oscillating bearings, splines, couplings...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... article summarizes the general process of distortion failure analysis. It also discusses three types of distortion failures that provide useful insights into the problems of analyzing unusual mechanisms of distortion. These include elastic distortion, ratcheting, and inelastic cyclic buckling...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... Common name Sketch Metallic Projections A 100: Metallic projections in the form of fins or flash A 110: Metallic projections in the form of fins (or flash) without change in principal casting dimensions A 111 Thin fins (or flash) at the parting line or at core prints Joint...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001459
EISBN: 978-1-62708-234-1
... as the rings present in the trunk of a tree indicate stages in its growth. A fatigue crack generally progresses intermittently in service, depending on the loading conditions, e.g., in its early stages a crack in a crankshaft may only extend under full load conditions, and if the engine normally...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0060154
EISBN: 978-1-62708-234-1
... needed immediate replacement. The replacement piping that had been installed during the previous shutdown 13 months earlier gave a “good” signal similar to unused material. The technique developed for the field survey was not adaptable for determining the conditions of the welded joints, so none of the...