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pack carburizing

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Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005765
EISBN: 978-1-62708-165-8
... Abstract Pack carburizing is a process in which carbon monoxide derived from a solid compound decomposes at the metal surface into nascent carbon and carbon dioxide. In addition to discussing the pros and cons of pack carburizing, this article provides information on the carburizing medium...
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Published: 01 August 2013
Fig. 2 Cumulative shrinkage of two batches of pack-carburizing compound during 20 consecutive 9 h carburizing cycles at 925 °C (1700 °F). Dust was blown out after the 20th cycle. Shrinkage for batches 2 and 4 ( Table 2 ) was intermediate to the data shown for batches 1 and 3. More
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Published: 01 August 2013
Fig. 5 Effect of duration of pack carburizing on case depth and carbon gradient in 3115 steel carburized in a compound containing hardwood charcoal, coke, and sodium carbonate More
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Published: 01 December 2004
Fig. 5 Pack carburized 3310 steel. (a) Carburized 16 h at 940 °C (1725 °F) and cooled in the pot. Structure is fine pearlite (dark) and carbide envelopes at prior-austenite grain boundaries in a matrix of ferrite and dispersed alloy carbide. (b) Same carburizing conditions but tempered 13 h More
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005811
EISBN: 978-1-62708-165-8
... the steel. This article introduces the fundamentals, types, advantages and limitations, and the complications of various forms of carburizing, namely, pack carburizing, liquid carburizing or salt bath carburizing, gas carburizing, and low-pressure (vacuum) carburizing. The related process of carbonitriding...
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Published: 01 August 2013
Fig. 4 Jominy hardenability of carburized 8620 steel. (a) Reheat quench. All bars normalized at 925 °C (1700 °F). Core: austenitized 20 min at 845 °C (1550 °F). Case: pack carburized 9 h at 925 °C (1700 °F), box cool; reheated 20 min at 845 °C (1550 °F), quenched. (b) Direct quench. All bars More
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Published: 01 August 2013
Fig. 6 Jominy hardenability of carburized 16MnCr5 German steel. (a) Direct quench. All bars normalized at 925 °C (1700 °F). Core: austenitized 20 min at 920 °C (1690 °F). Case: pack carburized 9 h at 920 °C (1690 °F), direct quench. (b) All bars normalized at 925 °C (1700 °F). Core More
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Published: 01 August 2013
Fig. 5 Hardenability of carburized 9310 from two Jominy specimens. (a) All bars normalized at 925 °C (1700 °F). Core: austenitized 20 min at 845 °C (1550 °F). Case: pack carburized 16 h at 925 °C (1700 °F), air cooled; reheated 40 min at 845 °C (1550 °F). (b) Reheat quench. All bars normalized More
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Published: 01 August 2013
Fig. 6 Case depth-carbon content curve. Shows the effect of carburizing temperature on carbon concentration after pack carburizing at temperature given. Source: Ref 3 More
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Published: 01 January 2006
Fig. 4 Effect of nickel on the carburization resistance of cast Fe-Ni-Cr and Ni-Cr alloys. Data were generated in pack carburization tests at 1100 °C (2010 °F). Source: Ref 21 More
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Published: 01 October 2014
Fig. 38 End-quench hardenability of carburized 6120. Bars normalized at 925 °C (1700 °F). Core was austenitized for 20 min at 925 °C (1700 °F). Case was pack carburized for 9 h at 925 °C (1700 °F) and direct quenched. Source: Ref 8 More
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Published: 01 October 2014
Fig. 21 End-quench hardenability of carburized 4118 steel. Bars normalized at 925 °C (1700 °F). Core was austenitized for 20 min at 925 °C (1700 °F). Case was pack carburized for 9 h at 925 °C (1700 °F) and direct quenched. Source: Ref 8 More
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Published: 01 August 2013
Fig. 3 Jominy hardenability of carburized carbon steel. All bars normalized at 925 °C (1700 °F). Core: austenitized 20 min at 925 °C (1700 °F). Case: pack carburized 9 h at 925 °C (1700 °F), direct quenched. Source: Ref 10 More
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Published: 01 October 2014
Fig. 15 End-quench hardenability of carburized (a) 4028 and (b) 4427 steels. Bars normalized at 925 °C (1700 °F). Core was austenitized for 20 min at 925 °C (1700 °F). Case was pack carburized for 9 h at 925 °C (1700 °F) and direct quenched. Source: Ref 8 More
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Published: 01 October 2014
Fig. 27 End-quench hardenability of carburized (a) 8617 and (b) 8822 steels. Bars normalized at 925 °C (1700 °F). Core was austenitized for 20 min at 925 °C (1700 °F). Case was pack carburized for 9 h at 925 °C (1700 °F) and direct quenched. Source: Ref 8 More
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Published: 01 October 2014
Fig. 32 End-quench hardenability of carburized 8620 steels with variation in chromium content. (a) 8620 with 0.21 wt% Cr. (b) 8620 with 0.031 wt% Cr. Bars normalized at 925 °C (1700 °F). Core was austenitized for 20 min at 925 °C (1700 °F). Case was pack carburized for 9 h at 925 °C (1700 °F More
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Published: 01 August 2013
Fig. 29 Jominy curve of carburized 5120 steel (0.17 C, 0.81 Mn, 0.29 Si, 0.18 Ni, 0.72 Cr, 0.05 Mo). Normalized bar austenitized 20 min at 925 °C (1700 °F), pack carburized 9 h at 925 °C (1700 °F), direct quenched. Austenite grain size 6 to 8 (McQuaid-Ehen). Source: Ref 25 More
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Published: 01 October 2014
Fig. 13 Effect of carbon on hardenability of carburized 1018 steel. Composition of 0.17 C, 0.72 Mn, 0.01 Si, 0.01 Cr, 0.007 Mo, with McQuaid-Ehn grain size 6–8. All bars normalized 925 °C (1700 °F). Core—austenitized 20 min, 925 °C. Case—pack carburized 9 h, 925 °C, direct quenched. Source More
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Published: 01 December 2004
Fig. 2 Effect of carburizing time on case in 0.15% C steel (0.17C-0.5Si-0.64Mn, wt%) after slow cooling from pack carburization at 940 °C (1725 °F) for (a) 1 h, (b) 2 h, and (c) 4 h. Arrows indicate total case depth estimated from variation in carbon content of turnings removed from successive More
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Published: 01 August 2013
Fig. 7 Service life comparison of three materials for containers for pack carburizing More