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Boiler pipes

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220475
EISBN: 978-1-62708-259-4
... Abstract This chapter discusses the properties and compositions of steels used in pressure vessels, piping, boilers, rebar, and other structural applications. It covers fine-grained steels, quenched and tempered steels, and controlled rolled (thermomechanical treatment) steels. It also compares...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
.... It then describes the various causes of failure in boiler tubes, headers, and steam pipes, explaining how and why they occur, how they are diagnosed, and how to mitigate their effects. The final and by far largest section in the chapter is a tutorial on damage and life assessment techniques for boiler components...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430087
EISBN: 978-1-62708-253-2
... are needed. The key components of a boiler carrying high-temperature and high-pressure steam can be broadly classified into two categories, thick-walled sections and thin-walled sections. Thick-walled sections generally include headers or steam pipes, while thin-walled sections are grouped as furnace...
Image
Published: 01 July 2000
Fig. 7.32 (a) Pitting corrosion of inner wall of boiler tube due to insufficient deaeration of feedwater. Corrosion products brush removed from right side of section. (b) Cross section of pipe wall showing distribution of pits More
Image
Published: 01 August 2018
Fig. 4.10 Macrograph of a radial section of a tram wheel that was repaired by welding. Deposited metal appears light while the heat affected zone (HAZ) (see Chapter 14, “Structural Steels and Steels for Pressure Vessels, Piping, and Boilers,” in this book) appears dark. Etchant: iodine More
Image
Published: 01 August 2018
Vessels, Piping, and Boilers,” in this book). The welding preparation for the repair at right was insufficient to completely remove the casting defect. Courtesy of MRS Logistica S.A. Rio de Janeiro, Brazil. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490383
EISBN: 978-1-62708-340-9
... and Steam Pipes HP Rotors Steam-Turbine Materials Materials Selection for Boilers Turbine Stationary Components Blades for HP/IP Rotors LP Rotors Currently, a 3.5Ni-Cr-Mo-V steel is widely used for rotors in the low-pressure section. Allowable metal temperatures are limited to about...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430017
EISBN: 978-1-62708-253-2
... and then mixed with cold air as per the requirements of the PC. Normally the temperature is maintained at 60 to 70 °C (140 to 160 °F). The fine, powdered coal is carried to the boiler in coal pipes by high-pressure (HP) hot air. The boiler is a device used for production of steam for power generation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090359
EISBN: 978-1-62708-266-2
... the requirements of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code ( Ref 16.5 ). By 1982, more than 200 incidents of intergranular SCC had been reported in U.S. plants, but none was associated with large-diameter piping until the Nine Mile Point Unit 1 occurrence. 16.2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080003
EISBN: 978-1-62708-304-1
... a corrosion-resistant weld overlay instead of replacing it with a new construction. This approach has been adopted in the boiler industry in recent years to address the severe corrosion problems with the waterwalls of boilers in waste-to-energy boilers, coal-fired boilers, basic oxygen furnace hoods in steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
... Abstract This chapter discusses the effects of corrosion on boiler tube surfaces exposed to water and steam. It describes the process of corrosion, the formation of scale, and the oxides of iron from which it forms. It addresses the primary types of corrosion found in boiler environments...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080437
EISBN: 978-1-62708-304-1
..., and K. Maeda, P. Cohen, Ed., ASME, 1989, p 1379 Effect of Heat Treatment on Hydrogen Attack Resistance of C-0.5Mo Steels for Pressure 3. R.B. Dooley, Corrosion of Steam/Water- Vessels, Heat Exchangers, and Piping, Cor- side Boilers, Corrosion, Vol 13, 9th ed., rosion, Vol 41 (No. 7), 1985, p 415 Metals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.9781627082532
EISBN: 978-1-62708-253-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430001
EISBN: 978-1-62708-253-2
... is directed over coiled copper pipe through which the water is flowing, such that the water flowing through the copper coils is heated by conductive heat transfer. Natural gas boilers employ either atmospheric burners (also known as natural draft burners) or forced draft burners. Both types of boiler can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430379
EISBN: 978-1-62708-253-2
... not remove dissolved solids. Undissolved solid particles in water are removed by using either gravity filters or pressure filters. Filtration also removes the rust particles formed due to corrosion in the boiler and steam piping or tubing. Coarse suspended matter in water is removed by using gravity...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.9781627083409
EISBN: 978-1-62708-340-9
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430290
EISBN: 978-1-62708-253-2
... Abstract Fossil fuels produce many byproducts that, if not fully combusted, put boiler tubes at risk. Fuel ash, chemical residues, and process heat pose the greatest threat and are the primary contributors to fireside corrosion. This chapter covers various types of fireside corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030360
EISBN: 978-1-62708-282-2
... formalized as knowledge of likely deterioration mechanisms improved and as plant failures became better understood. This led to the setting of standard periods of inspection for a range of plant equipment, largely triggered by instances of boiler and steam system failures. By the 1980s, instances...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
... Abstract Boiler tubes subjected to cyclic or fluctuating loads over extended periods of time are prone to fatigue failure. Fatigue can occur at relatively low stresses and is implicated in almost 80% of the tube failures in firetube boilers. This chapter covers the most common forms of boiler...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430409
EISBN: 978-1-62708-253-2
... Abstract The power generating industry has become proficient at predicting how long a component will last under a given set of operating conditions. This chapter explains how such predictions are made in the case of boiler tubes. It identifies critical damage mechanisms, progressive failure...