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water-hardening steels

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440191
EISBN: 978-1-62708-262-4
...Classification and approximate compositions of some principal types of tool steels Table 1 Classification and approximate compositions of some principal types of tool steels AISI UNS No. C Mn Si Cr V W Mo Co Ni Water-hardening tool steels W1 T72301 0.60–1.40...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240411
EISBN: 978-1-62708-251-8
...Abstract Abstract There is a fairly wide variety of different tool steels for different applications. The American Iron and Steel Institute (AISI) classification of tool steels includes seven major categories: water-hardening tool steels, shock-resisting tool steels, cold work tool steels, hot...
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
... high-speed, water-hardening, shock-resistant, and hot and cold work tool steels. It discusses the influence of alloy design on the evolution of microstructure and properties during solidification, heat treating, and hardening operations. It also describes critical phase transformations and the effects...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770011
EISBN: 978-1-62708-337-9
.... It explains that gas-carburizing atmospheres contain water vapor and carbon dioxide, providing oxygen that reacts with alloying elements, particularly manganese, chromium, and silicon. It examines the composition and distribution of oxides produced in different steels and assesses the resulting composition...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310285
EISBN: 978-1-62708-326-3
... the following way: Cold-worked tool steels Unalloyed and low-alloyed (water- and oil-hardening, shock-resistant) cold-worked tool steels: W-, S-, O-, L-, as well as 6F-type Medium- and high-alloy (air-hardening, high-carbon, and high-chromium) cold-worked tool steels: A-, D- (including powder...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060273
EISBN: 978-1-62708-261-7
...–0.40 1.25–1.75 3.25–3.75 … … … … P20 T51620 0.28–0.40 0.60–1.00 0.20–0.80 1.40–2.00 … 0.30–0.55 … … … P21 T51621 0.18–0.22 0.20–0.40 0.20–0.40 0.50 max 3.90–4.25 … … 0.15–0.25 1.05–1.25Al Water-hardening tool steels W1 T72301 0.70–1.50 (e) 0.10–0.40 0.10...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170210
EISBN: 978-1-62708-297-6
... group D; and oil-hardening steels, also called group O. Composition limits for cold-work steels are listed in Table 1 . Effects of Alloying Elements In addition to the hot- and cold-work steels described previously, shock-resisting steels, low-alloy special-purpose steels, mold steels, and water...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... effects of increasing the severity of the service condition. Source: Ref 1 Exposure of the product or system to environments more aggressive than forethought would include examples such as: Microbiologically influenced corrosion in a cooling-water system using river water in which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040277
EISBN: 978-1-62708-300-3
...</xref>] Table 21.1 AISI classification and composition of tool steels [ Krauss et al., 1998 ] Group Identifying symbol Water-hardening tool steels W Shock-resisting tool steels S Oil-hardening cool work tool steels O Air-hardening, medium-alloy cold work tool steel A High-carbon...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310203
EISBN: 978-1-62708-326-3
... on hardenability. This allows case hardening by oil quenching of plain carbon and low-alloy steels that would otherwise require water quenching. Typical increases in hardenability are shown for carburized versus carbonitrided end-quench specimens in Fig. 8 . In this figure, it is apparent, for example...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410335
EISBN: 978-1-62708-265-5
..., respectively. Oil is a much less severe quenching medium than water, and so the cooling rates of oil-quenched bars are appreciably lower than those of water-quenched bars. Figure 16.8 shows that the hardening response of the SAE 1045 steel to oil quenching is very low. Even in the 12.7 mm diameter bar...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050139
EISBN: 978-1-62708-311-9
... Fig. 6.1 Photo sequence of a hot steel rod being quenched in a 25% polyalkylene glycol polymer in water solution. (a) When the rod is immersed, a polymer film forms on its surface. (b) After 15 s, polymer activates and begins to boil. (c) After 25 s, boiling occurs over the entire rod...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
.... 4 Combination progressive-spinning method of flame hardening. Source: Ref 2 Fig. 5 Magnetic fields and induced currents produced by various induction coils. Source: Ref 3 Fig. 1 Cross section of three sizes of water-hardening tool steel (W1) after heating to 800 °C (1475 °F...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440097
EISBN: 978-1-62708-262-4
... their hardenability can be varied over a wide range by suitable controls. In this group of steels, there is a continuous change from water-hardening to oil-hardening types. Hardenability is very sensitive to changes in chemical composition, particularly to the content of manganese, silicon, and residual elements...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... efficient cooling medium, for example, water as compared to oil, will lead to larger stresses. It also is well known that cracking propensity increases with carbon content. Higher-carbon steels undergo greater expansion on hardening, and because the martensite-start ( M S ) and martensite-finish ( M F...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400169
EISBN: 978-1-62708-258-7
... wheel without water coolant. (a) Normal bulk microstructure of coarse pearlite regions in a ferrite matrix away from the cut surface. Fine pearlite (b) and martensitic (c) regions near the cut surface indicating heating due to the absence of water coolant. 4% picral etch. 500× Fig. 7.20...
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
..., surface, and 3 4 out from center) where this hardness will occur for either a mild oil quench or a mild water quench. An example application would be to determine the maximum bar diameter that can be through hardened (100% martensite) to the bar center. If the American Iron and Steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
... severity H -values Sources: Ref 6 and 7 Fig. 7 Grossmann chart relating bar diameter, hardenability of steel, and severity of quench. H -value (severity of quench): 5.00, strong brine quench, violent agitation; 2.00, poor brine quench, no agitation; 1.00, poor water quench, no agitation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350087
EISBN: 978-1-62708-315-7
... with water. After quenching, the microstructure of the surface layer consists of hard martensite over a lower-strength interior core of other steel morphologies such as ferrite and pearlite. A prerequisite for proper flame hardening is that the steel must have adequate carbon and other alloy additions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050215
EISBN: 978-1-62708-311-9
... Table 11.5 Quench response Steel Carbon (a) , % As-quenched hardness, HRC Quenchant type (b) Tendency for quench cracks Static heating Scanning 1022 0.18/0.23 30/44 Water Water No 1030 0.28/0.34 40/52 Water Water No 10B35 0.32/0.38 55/58 Water Water No 1040...