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case-hardened steels

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440141
EISBN: 978-1-62708-262-4
... are discussed. carbonitriding carburizing case hardening nitriding nitrocarburizing steel CASE HARDENING—the production of parts that have hard, wear-resistant surfaces, but with softer and/or tougher cores—can be accomplished by two distinct methods. One approach is to use a grade of steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060273
EISBN: 978-1-62708-261-7
... cases nonmetals such as machinable ceramics and polymers. Many of these steels may also be used in noncutting applications that require high-temperature stability, high levels of wear resistance, strength, and toughness. Tool steels can be hardened through heat treatment, and their chemical compositions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090095
EISBN: 978-1-62708-266-2
..., microstructure, and thermal history. Sensitization is particularly detrimental to austenitic stainless steels, and in many cases, eliminating it will eliminate the susceptibility to SCC. The chapter includes an extensive amount of data and illustrations. hydrogen embrittlement stainless steel stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220475
EISBN: 978-1-62708-259-4
... pressures are present, it is necessary to combine steels with higher strengths than usual structural steels with considerable wall thickness. In these cases, the choice is usually to use heat-treatable steels with a balanced chemical composition to achieve good hardenability (martensitic or bainitic...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310203
EISBN: 978-1-62708-326-3
... and the type of nonmartensitic constituents ( Fig. 1 ). All quench-hardened steels are tempered immediately after cooling to near room temperature. This is true for through-hardened steel, as well as case-hardened parts from carburization or carbonitriding. Tempering is, however, far more important for through...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410621
EISBN: 978-1-62708-265-5
.... , The Relationship of Microstructure to Fracture Morphology and Toughness of Hardened Hypereutectoid Steels , Case-Hardened Steels: Microstructural and Residual Stress Effects , Diesburg D.E. , Ed., TMS-AIME , Warrendale, PA , 1983 , p 33 – 58 24.39 “ Cold Work Tool Steel (AISI A2)” and “Hot Work...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140189
EISBN: 978-1-62708-264-8
... on surface modification techniques. References 17.1. Heat Treater’s Guide: Practices and Procedures for Irons and Steels , ASM International , 1995 17.2. Heat Treating , Vol 4 , ASM Handbook , ASM International , 1991 17.3. Boyer H.E. , Ed., Case Hardening...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440097
EISBN: 978-1-62708-262-4
... pearlite, which has good mechanical properties even though martensite is not formed. All parts made from carbon steels (or from quench-hardened steels) should be tempered immediately after cooling to near room temperature by quenching. This prevails for through-hardened, as well as case hardened, parts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130311
EISBN: 978-1-62708-284-6
...-speed steels and mold steels are also discussed in some specific cases. However, many aspects of a given class (or for a specific failure) are also applied to other classes; therefore, this chapter uses references to previous or future parts of the text and figures. Such a situation is not very...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300199
EISBN: 978-1-62708-323-2
... with alloy elements in solid solution in the ferrite. Carburized, hardened, and tempered, these steels develop different case depths, with 9310 often producing the deepest case depth. All are capable of achieving a 60 HRC martensite case. 52100 steel is the only exception to the four-digit designation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220403
EISBN: 978-1-62708-259-4
... density in the material through cold working. Examples of the other mechanisms are presented in the following chapters of this book. Figure 12.14 schematically presents the changes occurring in steels during subcritical annealing. In some cases, the effects on the mechanical properties...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140157
EISBN: 978-1-62708-264-8
... at the sacrifice of toughness. Most of these steels are two-phase at their austenitization temperatures and therefore involve the complications previously discussed for this case in Chapters 11 and 13 . The carbon composition and the alloy composition of the austenite are controlled by the austenitization...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440175
EISBN: 978-1-62708-262-4
... 348 S34800 1010–1120 1850–2050 384 S34800 1040–1150 1900–2100 (a) In all cases, cooling must be rapid, usually by water quenching, depending on section thickness. Source: Ref 5 Cooling practice is the critical operation in the annealing of these steels. It is essential...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310095
EISBN: 978-1-62708-326-3
.... , The Effect of Aluminum Treating on the Case-Hardening Response of Plain Carbon Steels , Heat Treat. Met. , Vol 11 ( No. 1 ), 1984 , p 21 – 23 16. Krauss G. , Microstructures and Properties of Carburized Steels , Heat Treating of Irons and Steels , Vol 4A , ASM Handbook , ASM...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440125
EISBN: 978-1-62708-262-4
... to its carbon steel counterpart is to obtain greater hardenability. There are many cases where alloy steels are really wasted; that is, they are used because a poorly informed user assumes that alloy steels are “better steels” than carbon steels. This is not necessarily true. One steel is “better” than...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440191
EISBN: 978-1-62708-262-4
... (generally very low in carbon) are most often hardened by case hardening—carburizing or nitriding (see Chapter 8, “Case Hardening of Steel” ). Because the surface of most tool steels must remain unaltered in composition in order to retain the inherent advantages of the material, it is very important...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500107
EISBN: 978-1-62708-317-1
... stress and tensile stress between the different coils, heats, and suppliers. Thus, strain-rate effects in forming AHSS can be neglected for all practical purposes. However, this is not the case in considering crash analysis, where strain rates are much higher. With the exception of boron steels used...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310285
EISBN: 978-1-62708-326-3
... forming, often they must be spheroidize-annealed again before subsequent operations. This is also the case if an error has been made in heat treatment for hardening them. If a workpiece is to be rehardened, it should first be thoroughly spheroidize-annealed. This procedure is important with the steels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170123
EISBN: 978-1-62708-297-6
... hardenability in order to optimize mechanical properties and toughness after heat treatment. In some cases, however, alloy additions are used to reduce environmental degradation under certain specified service conditions. Three major classes of alloy steels are described below. These include low-carbon...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310079
EISBN: 978-1-62708-326-3
... J d for a steel and the H -value of the quenching medium, one can predict the depth of hardening in any size bar. Measuring cooling rates is obviously impractical or, in many cases, impossible, and so the unique correlation of Jominy distance with cooling rates provides a method of relating...