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blast furnace

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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.c9001850
EISBN: 978-1-62708-241-9
...Abstract Abstract After about a year of uninterrupted service, one of the blow pipes on a blast furnace developed a bulge measuring 300 x 150 x 12 mm. The conical shaped section was removed from the furnace and examined to determine why it failed. The investigation consisted of visual...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001233
EISBN: 978-1-62708-232-7
...Abstract Abstract High-chromium steel pipes 42.25 x 3.25 mm from a blast furnace gas fired recuperator for the preheating of air were heavily oxidized and perforated in places. It was found that the blast furnace gas had a high sulfur content. Both the carburization and the formation of sulfide...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0047406
EISBN: 978-1-62708-232-7
...Abstract Abstract A cast countershaft pinion on a car puller for a blast furnace broke after one month of service; expected life was 12 months. The pinion was specified to be made of 1045 steel heat treated to a hardness of 245 HRB. The pinion steel was analyzed and was a satisfactory...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001224
EISBN: 978-1-62708-232-7
...Abstract Abstract A recuperator for blast heating of a cupola furnace became unserviceable because of the brittle fracture of several finned tubes made of heat resistant cast steel containing 1.4C, 2.3Si and 28Cr. The service temperature was reported as 850 deg C. This led to the suspicion...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
... involved precipitator wires in a wet scrubbing system at a basic oxygen furnace (BOF) shop. There were six sets of wet scrubbing systems, and each had four zones. The data on the wire failure frequency are presented in Table 1 . Basically, wires were hung from porcelain insulators between plates...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001591
EISBN: 978-1-62708-227-3
... source of iron ore used in Britain in the late 19th and early 20th century. 8 , 9 However, Swedish iron ore contained about 15% titanium dioxide, which requires more fuel and a higher blast furnace operating temperature because it is more difficult to reduce the ore to iron. Colville continued...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001328
EISBN: 978-1-62708-215-0
... International , 2002 , p 641 – 649 10.31399/asm.hb.v11.a0003540 Maintenance shutdown inspections regularly showed cracks in the welded outlet pigtail connections of a steam-methane reformer furnace. Applications Circumstances Leading up to Failure Pertinent Specifications Performance...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048331
EISBN: 978-1-62708-229-7
...Abstract Abstract The top tube of a horizontal superheater bank in the reheat furnace of a steam generator ruptured after seven years in service. The rupture was found to have occurred in the ferritic steel tubing (2.25Cr-1Mo steel (ASME SA-213, grade T-22)) near the joint where it was welded...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046044
EISBN: 978-1-62708-235-8
... in.) at the girth welds and 3.8 mm (0.150 in.) elsewhere. After being assembled, the motor cases were heat treated as follows: preheat to 480 °C (900 °F), stabilize at 705 °C (1300 °F) for 4 h, austenitize at 900 °C (1650 °F) for 30 min, furnace cool to 845 °C (1550 °F) and hold for 30 min, quench in salt bath...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006828
EISBN: 978-1-62708-329-4
...Abstract Abstract The various methods of furnace, torch, induction, resistance, dip, and laser brazing are used to produce a wide range of highly reliable brazed assemblies. However, imperfections that can lead to braze failure may result if proper attention is not paid to the physical...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... and material factors that cause a part to fail during heat treatment. The article discusses the problems associated with heating and furnaces, quenching media, quenching stresses, hardenability, tempering, carburizing, carbonitriding, and nitriding as well as potential stainless steel problems and problems...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001834
EISBN: 978-1-62708-241-9
... References 1. Gabrielli F. , Overview of water related tube failures in industrial boilers . Mater. Perform . 27 , 51 – 56 ( 1988 ) 2. Mobin M. , Malik A.U. , Andijani I.N. , Al-Muaili F. , Al-Hajri M. , Premature waterside corrosion of furnace wall tubes...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
..., brine, and caustic quenching Shapes Maximum carbon content, % Furnace hardening General use 0.30 Simple shapes 0.35 Very simple shapes (e.g., bars) 0.40 Induction hardening Simple shapes 0.50 Complex shapes 0.33 Higher-carbon steels undergo greater expansion...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006802
EISBN: 978-1-62708-329-4
... fracture assessments, corrosion assessments, and blast, fire, and heat damage assessments. blast assessment brittle fracture assessment corrosion assessment elevated temperature life assessment failure prevention fatigue life assessment fire assessment fitness-for-service life assessment heat...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
..., that was detected after the surface was sand blasted following heat treatment. This surface condition was due to excessive scaling (oxidation) resulting from improper furnace-atmosphere control. Figure 30(b) shows that the surface case was poorly developed, probably due to the influence of the scaled surface...
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
.... Fig. 2 Weld defect (lack of fusion). This defect did not cause a failure even after 27 years in a reheater. Failures Involving Sudden Tube Rupture In the basic design of a boiler, the heat input from the combustion of fuel is balanced by the formation of steam in the furnace...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... Misrun E 122 Casting incomplete due to insufficient metal poured Poured short E 123 Casting incomplete due to loss of metal from mold after pouring Runout E 124 Significant lack of material due to excessive shot-blasting Excessive cleaning E 125 Casting partially melted...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... steel is made in a furnace normally used to make high-alloy steels. The refractory lining of the furnace may impart sufficient residual chromium and other alloying elements to a heat of low-carbon steel that problems occur when components made from that heat are joined using standard welding procedures...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... are created by blast furnaces, cleaning tanks, plating tanks, and exposure to outdoor elements. Figure 5 shows corrosion failure of a steel wire rope that operated partially underwater. Fig. 5 Steel wire rope with heavy corrosion and broken individual wires resulting from intermittent underwater...
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
... to insufficient metal poured Poured short E 123 Casting incomplete due to loss of metal from mold after pouring Runout E 124 Significant lack of material due to excessive shot-blasting Excessive cleaning E 125 Casting partially melted or seriously deformed during annealing Fusion...