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hardenability

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Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310079
EISBN: 978-1-62708-326-3
... Abstract The hardenability of steel is governed almost entirely by the chemical composition (carbon and alloy content) at the austenitizing temperature and the austenite grain size at the moment of quenching. This article introduces the methods to evaluate hardenability and the factors...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050347
EISBN: 978-1-62708-311-9
... Abstract This appendix provides hardenability curves for several H-steels (1045H, 4130H, 4140H, 4142H, 4145H, 4340H, 5160H, 8620H) and one alloy steel (E52100). hardenability curves hardness heat-treating temperature steel Fig. A6.1 Heat-treating temperatures recommended by SAE...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410335
EISBN: 978-1-62708-265-5
... Abstract The properties of martensite and the mechanisms that govern its formation are the key to understanding hardness and the hardenability of carbon steel. Martensite is a transformation product of austenite that requires rapid cooling to suppress diffusion-dependent transformation pathways...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140083
EISBN: 978-1-62708-264-8
... Abstract This chapter addresses the concept of hardenability by first describing the basic hardening process for steel, starting with austenitization followed by quenching and tempering. The context also serves to clarify the difference between hardenability and hardness, which are often...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440027
EISBN: 978-1-62708-262-4
... Abstract This chapter discusses the general principles of measuring hardness and hardenability of steel. The discussion begins by defining hardness and exploring the history of hardness testing. This is followed by a discussion on the principles, applications, advantages, and disadvantages...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560043
EISBN: 978-1-62708-353-9
... Abstract The crux of this chapter is to develop a method to quantitatively define hardenability. The chapter includes the empirical methods to estimate the hardenability knowing the chemical composition, describes prior austenite grain size, and examines their utility. It then reviews...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560389
EISBN: 978-1-62708-353-9
... Abstract This chapter discusses the method for calculating hardenability from composition. It contains tables listing multiplying factors, carbon content, initial hardness, and 50% martensite hardness. The tables also list Jominy distance for 50% martensite vs. DI (in. and mm), boron factors vs...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200327
EISBN: 978-1-62708-354-6
... Abstract This chapter describes the processes involved in heat treatment of carbon and low alloy steel, high strength low alloy steels, austenitic manganese steels, martensitic stainless steels, and austenitic stainless steels. In addition, precipitation hardening and quench hardening of carbon...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560441
EISBN: 978-1-62708-353-9
... Abstract This appendix lists the readings of specified hardness limits for H-steels, along with graphs showing the distance from the quenched surface against hardness values. hardness limits H-steel quenching This appendix is a series of tables and graphs giving hardenability bands...
Image
Published: 01 March 2006
Fig. 1 Effect of composition on hardenability. (a) Low hardenability of a conventional 1038H carbon steel. Source: Ref 3 . (b) Effect of manganese on hardenability of 1541H steel. Source: Ref 4 . (c) Effect of manganese and boron on hardenability of 15B41H steel. Source: Ref 5 More
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Published: 31 December 2020
Fig. 4 Hardenability bands of carbon H-steels: (a) low hardenability 1038H, (b) 1541H with higher manganese, and (c) boron steel 15B41. All with recommended heat treating as follows: normalize (for forged or rolled specimens only) at 870 °C (1600 °F); austenitize: 845 °C (1550 °F). Source More
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Published: 31 December 2020
Fig. 4 End-quench hardenability limits for the hardenability grades of cast steel specified in SAE J435c. The nominal carbon content of these steels is 0.30% C. Manganese and other alloying elements are added as required to produce castings that meet these limits. More
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Published: 01 January 2015
Fig. 16.20 Hardenability, expressed as ideal critical size, as a function of austenite grain size and carbon content of iron-carbon alloys. Source: Ref 16.16 More
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Published: 01 January 2015
Fig. 16.22 Jominy-Boegehold specimen for end-quench test for hardenability. Source: Ref 16.16 More
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Published: 01 January 2015
Fig. 16.25 Method for presenting end-quench hardenability data. Data presented here are for AISI 8650 steel. Note relationship of cooling rate (top) to distance from the quenched end. Source: Ref 16.31 More
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Published: 01 January 2015
Fig. 16.26 Hardenability band for 8750H steel. Source: Ref 16.21 . More
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Published: 01 January 2015
Fig. 16.28 Hardenability of an 8620 type steel, as measured by ideal diameter and multiplying factor, as a function of effective boron content. Source: Ref 16.38 More
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Published: 01 June 2008
Fig. 11.7 Effect of alloying and section size on hardenability of steel alloys 1040 and 4140 More
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Published: 01 June 2008
Fig. 11.14 Typical Jominy hardenability curves for medium-carbon steels austenitized at 845 °C (1550 °F) from initial normalized condition More
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Published: 01 November 2007
Fig. 9.16 Hardness profile illustrating hardenability band for 5160H and equivalent Jominy positions for mild water and oil quenches. Source: Ref 9.1 More