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GB1418310A - Method for the case carburizing of steel - Google Patents

Method for the case carburizing of steel

Info

Publication number
GB1418310A
GB1418310A GB5943472A GB5943472A GB1418310A GB 1418310 A GB1418310 A GB 1418310A GB 5943472 A GB5943472 A GB 5943472A GB 5943472 A GB5943472 A GB 5943472A GB 1418310 A GB1418310 A GB 1418310A
Authority
GB
United Kingdom
Prior art keywords
steel
case
quenched
temperature
produce
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5943472A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
USS Engineers and Consultants Inc
Original Assignee
USS Engineers and Consultants Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by USS Engineers and Consultants Inc filed Critical USS Engineers and Consultants Inc
Publication of GB1418310A publication Critical patent/GB1418310A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/80—After-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

1418310 Heat-treating carburized steel USS ENGS &ÀCONSULTANTS Inc 22 Dec 1972 [3 Jan 1972] 59434/72 Headings C7A and C7U. Steel containing not more than 0.4% C is carburized at a temperature above 1700‹C to produce a maximum in the case of 0.8-1.2%C, after which it is quenched to below M s of the case, and reheated into the bainite region to transform all residual austenite. It is then heated into the temperature range of A3 (of the core) - (A3 + 100‹F), held only for sufficient time to permit temperature equalization throughout the crosssection and quenched to produce a martensitic case. In a modification the steel is quenched directly from the carburizing temperature into the bainite region, while in either process a final tempering step may be carried out conventionally e.g. 1 hour at 400‹F. The process is particulalry applied to gears, bearing races and bushings.
GB5943472A 1972-01-03 1972-12-22 Method for the case carburizing of steel Expired GB1418310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21495672A 1972-01-03 1972-01-03

Publications (1)

Publication Number Publication Date
GB1418310A true GB1418310A (en) 1975-12-17

Family

ID=22801062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5943472A Expired GB1418310A (en) 1972-01-03 1972-12-22 Method for the case carburizing of steel

Country Status (8)

Country Link
JP (1) JPS4874433A (en)
BR (1) BR7209232D0 (en)
CA (1) CA961743A (en)
DE (1) DE2263603A1 (en)
FR (1) FR2167568B1 (en)
GB (1) GB1418310A (en)
IT (1) IT982431B (en)
SE (1) SE394120B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0643142A2 (en) * 1993-09-15 1995-03-15 The Timken Company Prevention of particle embrittlement in grain-refined, high strength steels
CN104894574A (en) * 2015-05-11 2015-09-09 柳州金盾机械有限公司 Cemented quenching method of cylinder gear
WO2023279602A1 (en) * 2021-07-07 2023-01-12 江苏大学 Heat treatment method for boron steel, high-strength boron steel, and application thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3337376A (en) * 1966-12-27 1967-08-22 United States Steel Corp Method of hardening hypereutectoid steels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0643142A2 (en) * 1993-09-15 1995-03-15 The Timken Company Prevention of particle embrittlement in grain-refined, high strength steels
CN104894574A (en) * 2015-05-11 2015-09-09 柳州金盾机械有限公司 Cemented quenching method of cylinder gear
WO2023279602A1 (en) * 2021-07-07 2023-01-12 江苏大学 Heat treatment method for boron steel, high-strength boron steel, and application thereof

Also Published As

Publication number Publication date
IT982431B (en) 1974-10-21
FR2167568B1 (en) 1976-08-27
CA961743A (en) 1975-01-28
BR7209232D0 (en) 1973-08-30
FR2167568A1 (en) 1973-08-24
SE394120B (en) 1977-06-06
JPS4874433A (en) 1973-10-06
DE2263603A1 (en) 1973-07-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee