GB1046492A - High impact strength steel - Google Patents

High impact strength steel

Info

Publication number
GB1046492A
GB1046492A GB1854563A GB1854563A GB1046492A GB 1046492 A GB1046492 A GB 1046492A GB 1854563 A GB1854563 A GB 1854563A GB 1854563 A GB1854563 A GB 1854563A GB 1046492 A GB1046492 A GB 1046492A
Authority
GB
United Kingdom
Prior art keywords
region
steel
product
pearlite
impact strength
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
GB1854563A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1046492A publication Critical patent/GB1046492A/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
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys

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)

Abstract

A process of forming and heat-treating a steel product of chemical composition capable of exhibiting a metastable austenite structure comprises austenitizing, quenching sufficiently drastically to avoid transformation into pearlite and bring the product to a selected temperature region between the temperatures at which austenite transforms into pearlite and bainite respectively e.g. 500 DEG C., and performing upon the product within the selected region work sufficient to effect a deformation of preferably not less than 84% to strengthen the steel, then cooling into a region wherein the isothermal transformation products will be predominantly bainite e.g. to 400 DEG C. and tempering e.g. at 315 DEG C. within the bainitic region. The steel may consist of 3% Ni, 3% Mo, 0.2% C, remainder Fc.
GB1854563A 1962-08-22 1963-05-10 High impact strength steel Expired GB1046492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21863262A 1962-08-22 1962-08-22

Publications (1)

Publication Number Publication Date
GB1046492A true GB1046492A (en) 1966-10-26

Family

ID=22815863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1854563A Expired GB1046492A (en) 1962-08-22 1963-05-10 High impact strength steel

Country Status (1)

Country Link
GB (1) GB1046492A (en)

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