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reheater tubing

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Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004133
EISBN: 978-1-62708-184-9
..., water walls; P, pipes and headers; T, superheater and reheater tubes. (b) Metal temperatures are based on creep limitations. Source: Ref 8 , 9 Cost calculations comparing subcritical and supercritical plants at 80% capacity Table 10 Cost calculations comparing subcritical...
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: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004156
EISBN: 978-1-62708-184-9
... Fig. 4 Fuel ash corrosion on superheater and reheater tubes showing the maximum metal loss at the 2 and 10 o'clock positions Fig. 5 Corrosion rates of chrome (2.5%) ferritic steel, SA213-T22 (UNS K21590), and 18Cr-8Ni stainless steel, type 304 (UNS S30400), exhibiting a bell-shape...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003806
EISBN: 978-1-62708-183-2
.../83, National Association of Corrosion Engineers , 1983 8. Prescott G.R. , Material Problems in the Hydrocarbon Processing Industries , Alloys for the Eighties , Climax Molybdenum Company , p 303 – 315 9. Corrosion Problems in Coal Fired Boiler Superheater and Reheater Tubes...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002402
EISBN: 978-1-62708-193-1
... a largely ferrite-pearlite microstructure, although bainite is often present. The class 1 steel is used in the power industry as superheater/reheater tubing, headers, and main steam line piping for service temperatures to 650 °C (1200 °F). The normalized-and-tempered steel (class 2) is used for heavy-wall...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... and tubing. The article discusses metallurgical instabilities of steel-based alloys and nickel-base superalloys. It provides information on several life assessment methods, namely, the life fraction rule, parameter-based assessments, the thermal-mechanical fatigue, coating evaluations, hardness testing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... degrades at temperature over time. Grains do not deform, but voids develop at grain-boundary junctions and grow and coalesce over time, later developing into cracks and final failure. Courtesy of U.S. Navy Fig. 15 Ash deposits on outer surface of a reheater tube. Source: Ref 65 . Courtesy of D.N...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006596
EISBN: 978-1-62708-210-5
... Tempers Sheet (bare and clad) O, T3, T4, T6 Plate (bare and clad) O, T451, T651 Drawn tube O, T4, T6 Extruded tube O, T4, T4510, T4511, T6, T6510, T6511 Extruded wire, rod, bar, and shapes O, T4, T4510, T4511, T6, T6510, T6511 Rolled and worked rod O, T4, T451, T6, T651 Rolled...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006520
EISBN: 978-1-62708-207-5
...Abstract Abstract This article summarizes a typical solution and aging heat treatments of 2xxx (Al-Cu), 6xxx (Al-Mg-Si), and 7xxx (Al-Zn-Mg) wrought alloys. It discusses the general aging characteristics and the effects of reheating of aluminum alloys. Typical examples of hardness...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003266
EISBN: 978-1-62708-176-4
... dispersion-strengthened nickel-base alloys 1350–1400 0.55–0.65 Source: Ref 1 Temperature limits of superheater tube materials covered in ASME Boiler Codes Table 2 Temperature limits of superheater tube materials covered in ASME Boiler Codes Material Maximum-use temperature...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004154
EISBN: 978-1-62708-184-9
... as aerated water is heated when boilers return to service. Especially common locations include the waterline in steam drums, areas where water stands along the bottom of horizontal pipe and tube runs, and lower bends of pendant superheaters and reheaters. Pinhole failures are more common in thinner-walled...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004124
EISBN: 978-1-62708-184-9
... pump, heating to the saturation temperature in an economizer, evaporation in the furnace, expansion work in the steam turbine, and condensation of the exhaust steam in a condenser. Steam cycle efficiency can be improved by adding superheater tubes to heat the steam above saturation temperatures. Reheat...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006280
EISBN: 978-1-62708-169-6
.... Aluminum brass 77.5 20.5 2% Al Aluminum improves corrosion resistance. It is used for heat-exchanger and condenser tubes. Cartridge brass 70 30 … Good cold working properties. Used for ammunition cases Common brass 43 37 … Also called rivet brass. Cheap and standard for cold working...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006756
EISBN: 978-1-62708-295-2
... buildup Fireside wastage Fireside oxidation Fireside corrosion of superheater and reheater tubing Fly-ash corrosion Soot-blower corrosion Coal-particle corrosion Steam impingement Fireside corrosion of waterwall tubing Low-temperature (dewpoint) fireside corrosion...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003521
EISBN: 978-1-62708-180-1
... deposit/corrosion product buildup Fireside wastage Fireside oxidation Fireside corrosion of superheater and reheater tubing Fly ash corrosion Sootblower corrosion Coal particle corrosion Steam impingement Fireside corrosion of waterwall tubing Low temperature (dew point...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003980
EISBN: 978-1-62708-185-6
... forging, only the end of the bar was heated so that three parts could be forged before returning the bar to the furnace. After a series of reheat and forging steps, the entire bar would be used. This method was more economical than machining the bearing races from tubing. The unusually large outside...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006288
EISBN: 978-1-62708-169-6
..., and tube 535 995 T31 (a) 190 375 18 T81 (a) T3510 (b) 190 375 18 T8510 (b) T3511 (b) 190 375 18 T8511 (b) T42 190 375 36 T62 Die forgings and rolled rings 535 995 T4 190 375 26 T6 Hand forgings 535 995 T4 190 375 26 T6 T352 (c) 175 350 18 T852...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006498
EISBN: 978-1-62708-207-5
... Rheocasting Low-Solid-Fraction Rheocastings Thixocasting, a process that reheats a precast billet to the semisolid forming temperature, was the first semisolid process to be successfully commercialized. Thixocasting consists of three stages: (1) the production of a billet feedstock having the globular...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005272
EISBN: 978-1-62708-187-0
... — The Rheocasting Story, Test Tube to Factory Floor: Implementing Technical Innovations , Proceedings of the Spring Symposium , May 22, 2002 , Metal Processing Institute, Worcester Polytechnic Institute , Worcester, MA , 2003 Reduced Enthalpy: Longer Tool Life Reduced Cycle Time Reduced...
Book Chapter

By H.W. Sizek
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003984
EISBN: 978-1-62708-185-6
... with a center upset by radial forging. (a) Tube blank before forging. (b) After center upsetting. (c) Stepped inside diameter contour formed over a water-cooled mandrel. Dimensions given in millimeters (1 in.=25.4 mm) Fig. 12 Sectioned power steering valve body illustrating the internal and external...