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malleable iron

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Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006333
EISBN: 978-1-62708-179-5
... Abstract Malleable iron, like ductile iron, possesses considerable ductility and toughness because of its combination of nodular graphite and low-carbon metallic matrix. This article discusses melting practices such as batch cold melting and duplexing, and their control mechanisms. It...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006347
EISBN: 978-1-62708-179-5
... Abstract Malleable iron, like ductile iron, possesses considerable ductility and toughness because of its combination of nodular graphite and low-carbon metallic matrix. There are two basic types of malleable iron: blackheart and whiteheart. This article focuses on the blackheart malleable iron...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006309
EISBN: 978-1-62708-179-5
... Abstract Malleable iron is a type of cast iron that has most of its carbon in the form of irregularly shaped graphite nodules instead of flakes, as in gray iron, or small graphite spherulites, as in ductile iron. This article discusses the production of malleable iron based on the metallurgical...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006294
EISBN: 978-1-62708-179-5
... chemical composition, cooling rate, and heat treatment. The article describes some basic principles of cast iron metallurgy. It discusses the main effects of the chemical composition of ductile iron and compacted graphite (CG) iron. The composition of malleable irons must be selected in such a way as to...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006301
EISBN: 978-1-62708-179-5
... Abstract This article describes some examples of the different welding processes for gray, ductile, and malleable irons. These processes include fusion welding, repair welding, shielded metal arc welding, gas metal arc welding, flux cored arc welding, gas tungsten arc welding, submerged arc...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006344
EISBN: 978-1-62708-179-5
... some general property comparisons with malleable, ductile (nodular), and compacted graphite irons. The mechanical properties of gray iron are determined by the combined effects of its chemical composition, processing technique in the foundry, and cooling rates during solidification. The article...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006320
EISBN: 978-1-62708-179-5
... sponge iron (loupe or luppe), which is a mixture of slag, charcoal, pure iron, and unreduced iron ore. The sponge iron is then forged and cleaned of residuals to produce a malleable iron. The earliest successful iron founding is generally credited to the ancient Mesopotamian civilizations...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006296
EISBN: 978-1-62708-179-5
... as-cast thermal cycle. Some types of iron castings also are routinely heat treated as a regular part of their production process. For example, malleable iron castings are subjected to a malleablizing treatment; the highest ductility grades of ductile iron are often annealed; permanent mold cast gray...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006310
EISBN: 978-1-62708-179-5
... ductility; both of these properties of ductile iron, as well as many of its others, can be further enhanced by heat treatment. Ductile iron also supplements and extends the properties and applications of malleable irons. It has the advantage of not having to be cast as a white iron and then annealed. It...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006339
EISBN: 978-1-62708-179-5
... strength and toughness, began to replace cast and welded steels and malleable iron. References 1. Mullins J.D. , Ductile Iron Data for Design Engineers , Ductile Iron Society , 2009 , www.ductile.org/ductile-iron-data/ 2. Hayrynen K.L. , The 2002 World Conference...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006342
EISBN: 978-1-62708-179-5
... specimen preparation THE PRESENCE OF GRAPHITE in gray, ductile, compacted graphite, and malleable cast irons makes preparation of these metals more difficult than steels. The soft and friable nature of the graphite phase, in combination with the relatively hard matrix, presents difficulties during...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006295
EISBN: 978-1-62708-179-5
... Abstract The control of the solidification process of cast iron requires understanding and control of the thermodynamics of the liquid and solid phases and of the kinetics of their solidification, including nucleation and growth. This article addresses issues that allow for the determination of...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006345
EISBN: 978-1-62708-179-5
... controlling the matrix structure around the graphite, either as-cast or by subsequent heat treatment. Ductile iron shares and supplements applications with malleable irons. Malleable iron is cast as a white iron and then annealed to form a temper graphite structure. The energy costs of annealing must be...
Book Chapter

Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006348
EISBN: 978-1-62708-179-5
... kPa (<650 psi) for main bearings and <5500 kPa (<800 psi) for connecting rod bearings. Normally, the journals in refrigeration compressors are made either of steel (carburized and hardened to 55 to 60 HRC) or of pearlitic malleable or ductile iron (hardened to 44 to 48 HRC) and having a root...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006350
EISBN: 978-1-62708-179-5
... were etched. Although largely replaced by the use of ductile irons, malleable irons have a graphite morphology that results in better ductility than gray irons. Malleable irons are produced by annealing of white cast iron, such that graphitization occurs from the decomposition of the cementite...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006349
EISBN: 978-1-62708-179-5
... enhance the graphite morphology and matrix structure and impart slightly increased corrosion resistance to cast irons. Few other additions are made to cast irons that have any significant effect on corrosion resistance. Unalloyed gray, ductile, malleable, and white cast irons represent the first and...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006318
EISBN: 978-1-62708-179-5
... J.F. , Effects and Neutralization of Trace Elements in Gray, Ductile and Malleable Iron , Trans. Am. Foundrymen’s Soc. , 1967 • Fallon M.J. , The Effect of Some Trace Elements in Cast Iron , Indian Foundry J. , Vol 26 ( No. 6 ), 1980 , p 1 • Ferro P. , Fabrizi A...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006308
EISBN: 978-1-62708-179-5
... Abstract Gray irons are commonly classified by their minimum tensile strength. This article describes properties used in the selection of gray irons and the factors that affect properties, particularly the effect of solidification. It discusses the three steps that its processing undergoes in...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006324
EISBN: 978-1-62708-179-5
... 447 10.1002/srin.195401547 8. Goto A. , Aizawa T. , and Okada S. , Imono (J. Jpn. Foundrymen’s Soc.) , April 1973 , p 295 9. Malleable Iron Castings , Malleable Founders Society , Cleveland, OH , 1960 10. Röhrig R. and Wolters D. , Legiertes...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006335
EISBN: 978-1-62708-179-5
... nozzle to vary the angle and distance of cleaning More detailed information on the selection and design of blast cleaning equipment can be found in Ref 2 and 3 . In the past, chilled iron grit and malleable abrasives were used. Today (2017), however, practically all the shot and grit used is...