GB1063734A - Method of producing hardened steel products - Google Patents

Method of producing hardened steel products

Info

Publication number
GB1063734A
GB1063734A GB19972/64A GB1997264A GB1063734A GB 1063734 A GB1063734 A GB 1063734A GB 19972/64 A GB19972/64 A GB 19972/64A GB 1997264 A GB1997264 A GB 1997264A GB 1063734 A GB1063734 A GB 1063734A
Authority
GB
United Kingdom
Prior art keywords
hardened steel
steel products
steel
austenitised
rolls
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
GB19972/64A
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.)
United States Steel Corp
Original Assignee
United States Steel Corp
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 United States Steel Corp filed Critical United States Steel Corp
Publication of GB1063734A publication Critical patent/GB1063734A/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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0231—Warm rolling
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0252—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment with application of tension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/935—Seal made of a particular material
    • Y10S277/939—Containing metal

Landscapes

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

Abstract

Steel sheet, which may be hypo- or hypereutectoid, is austenitised at the lowest possible temperature and is then passed through rolls or dies whereby it undergoes 1-20% reduction in thickness and is simultaneously cooled to below the nose of the transformation curve. It is then allowed to air cool through the martensitic transformation range after which it may be tempered to any desired hardness. Hypoeutectoid steel may be austenitised at not more than 50 DEG F. above Ac3 and hypereutectoid steel at not more than 50 DEG F. above Ac1, while the sheet may enter the rolls between 50 DEG F. above and 25 DEG F. below Ac1. The product may be used for cutting tools.
GB19972/64A 1963-05-14 1964-05-13 Method of producing hardened steel products Expired GB1063734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US280290A US3250648A (en) 1963-05-14 1963-05-14 Method of producing hardened steel products

Publications (1)

Publication Number Publication Date
GB1063734A true GB1063734A (en) 1967-03-30

Family

ID=23072448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19972/64A Expired GB1063734A (en) 1963-05-14 1964-05-13 Method of producing hardened steel products

Country Status (4)

Country Link
US (1) US3250648A (en)
DE (1) DE1433801A1 (en)
ES (1) ES299732A1 (en)
GB (1) GB1063734A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432367A (en) * 1965-04-05 1969-03-11 Heppenstall Co Process for the reduction of hot-rolled strip with very fine structural grain size
US3413166A (en) * 1965-10-15 1968-11-26 Atomic Energy Commission Usa Fine grained steel and process for preparation thereof
US4047979A (en) * 1976-10-08 1977-09-13 United States Steel Corporation Heat treatment for improving the toughness of high manganese steels

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU31850A1 (en) * 1952-03-12 1953-12-02 Philips Nv PROCESS FOR FINISHING HARDENABLE STEEL
US2717846A (en) * 1952-11-26 1955-09-13 Richard F Harvey Method of surface hardening ferrous metals
US2881107A (en) * 1956-10-22 1959-04-07 Lasalle Steel Co Austempered, cold-finished steels
US2934463A (en) * 1959-04-17 1960-04-26 Ford Motor Co High strength steel

Also Published As

Publication number Publication date
US3250648A (en) 1966-05-10
ES299732A1 (en) 1964-08-16
DE1433801A1 (en) 1969-11-27

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