GB1347129A - Method of heat treating steel and the steel products obtained by the method - Google Patents

Method of heat treating steel and the steel products obtained by the method

Info

Publication number
GB1347129A
GB1347129A GB5289271A GB5289271A GB1347129A GB 1347129 A GB1347129 A GB 1347129A GB 5289271 A GB5289271 A GB 5289271A GB 5289271 A GB5289271 A GB 5289271A GB 1347129 A GB1347129 A GB 1347129A
Authority
GB
United Kingdom
Prior art keywords
steel
cooled
air
products obtained
heat treating
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
GB5289271A
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.)
KONINKLIJKE HOOGOVENS EN STAAL
Original Assignee
KONINKLIJKE HOOGOVENS EN STAAL
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 KONINKLIJKE HOOGOVENS EN STAAL filed Critical KONINKLIJKE HOOGOVENS EN STAAL
Publication of GB1347129A publication Critical patent/GB1347129A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

1347129 Heat-treating steel KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN NV 15 Nov 1971 [16 Nov 1970] 52892/71 Heading C7A Steel containing in percentage by weight:- C 0À03 - 0À22 Mn 1 - 2À5 Mo 0À06 - 0À4 Nb 0À01 - 0À09 Cu 0 - 1À5 Ni 0 - 1 Cr 0 - 0À5 Fe balance Cu being present only in conjunction with Ni and in an amount such that Cu: Ni is less than 2, is, after rolling, heated at a temperature above A<SP>n</SP> 1 , preferably for less than 60 minutes, cooled in air to below 200‹ C, tempered for 5 to 60 minutes and again air cooled. After hot rolling and before the above heat treatment the steel may be cooled in air to below 500‹ C. The steel has good low temperature impact properties and is used for ship building and for structural purposes. In a preferred embodiment the composition of the steel is so adjusted that Mn + 0À9 x Mo + 4 x C # 1À92, with Cu, Ni and Cr being present only as impurities if at all.
GB5289271A 1970-11-16 1971-11-15 Method of heat treating steel and the steel products obtained by the method Expired GB1347129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7016774A NL7016774A (en) 1970-11-16 1970-11-16

Publications (1)

Publication Number Publication Date
GB1347129A true GB1347129A (en) 1974-02-27

Family

ID=19811575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5289271A Expired GB1347129A (en) 1970-11-16 1971-11-15 Method of heat treating steel and the steel products obtained by the method

Country Status (4)

Country Link
FR (1) FR2114761A5 (en)
GB (1) GB1347129A (en)
IT (1) IT945793B (en)
NL (1) NL7016774A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343613A (en) * 1976-10-04 1978-04-19 Nippon Kokan Kk <Nkk> 60 kg class high tensile controlling rolled steel sheet with brittleness resistance in stress relief annealing
US5393136A (en) * 1993-05-25 1995-02-28 Steelcase Inc. Drawer with convertible filing support system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047979A (en) * 1976-10-08 1977-09-13 United States Steel Corporation Heat treatment for improving the toughness of high manganese steels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343613A (en) * 1976-10-04 1978-04-19 Nippon Kokan Kk <Nkk> 60 kg class high tensile controlling rolled steel sheet with brittleness resistance in stress relief annealing
JPS5729540B2 (en) * 1976-10-04 1982-06-23
US5393136A (en) * 1993-05-25 1995-02-28 Steelcase Inc. Drawer with convertible filing support system

Also Published As

Publication number Publication date
NL7016774A (en) 1972-05-18
IT945793B (en) 1973-05-10
FR2114761A5 (en) 1972-06-30
DE2156663B2 (en) 1973-10-25
DE2156663A1 (en) 1973-02-15

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Legal Events

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