JPS5716116A - Manufacture of ultra-high strength steel product having excellent ductility and toughness - Google Patents

Manufacture of ultra-high strength steel product having excellent ductility and toughness

Info

Publication number
JPS5716116A
JPS5716116A JP6865780A JP6865780A JPS5716116A JP S5716116 A JPS5716116 A JP S5716116A JP 6865780 A JP6865780 A JP 6865780A JP 6865780 A JP6865780 A JP 6865780A JP S5716116 A JPS5716116 A JP S5716116A
Authority
JP
Japan
Prior art keywords
less
ultra
high strength
strength steel
steel product
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.)
Granted
Application number
JP6865780A
Other languages
Japanese (ja)
Other versions
JPS5935413B2 (en
Inventor
Yasutaka Okada
Kunihiko Yoshikawa
Hiroshi Teranishi
Yoshiatsu Sawaraki
Norio Ieda
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.)
Nippon Steel Corp
Sumitomo Light Metal Industries Ltd
Original Assignee
Sumitomo Light Metal Industries Ltd
Sumitomo Metal Industries Ltd
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 Sumitomo Light Metal Industries Ltd, Sumitomo Metal Industries Ltd filed Critical Sumitomo Light Metal Industries Ltd
Priority to JP55068657A priority Critical patent/JPS5935413B2/en
Publication of JPS5716116A publication Critical patent/JPS5716116A/en
Publication of JPS5935413B2 publication Critical patent/JPS5935413B2/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

PURPOSE:To obtain an ultra-high strength steel product having excellent durability by subjecting a steel material containing specific proportions of C, Si, Mn, P, etc., in addition to Fe to a solution heat treatment, cooling, a shot peening treatment, and an aging treatment in order under specific conditions. CONSTITUTION:A steel material, containing 0.03% or less C, 0.10% or less Si, 0.10% or less Mn, 0.010% or less P, 0.010% or less S, 15.0-25.0% Ni, 6-17% Co, 3-10% Mo, 0.03-1.6% Ti, 0.03-1.6% Al, and Fe and inevitable impurities, is subjected to a solution heat treatment at 800-950 deg.C for 30min-5hr and then cooled at a cooling rate faster than air-colling. Then, the steel material is subjected to a shot peening treatment using a metal sphere of HRC of about 30 and then to an antificial aging treatment at 450-540 deg.C for 1-15hr. Thus, an ultra-high strength steel product having excellent ductility and excellent toughness can be obtained.
JP55068657A 1980-05-22 1980-05-22 Method for manufacturing ultra-high tensile strength steel products with excellent ductility and toughness Expired JPS5935413B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55068657A JPS5935413B2 (en) 1980-05-22 1980-05-22 Method for manufacturing ultra-high tensile strength steel products with excellent ductility and toughness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55068657A JPS5935413B2 (en) 1980-05-22 1980-05-22 Method for manufacturing ultra-high tensile strength steel products with excellent ductility and toughness

Publications (2)

Publication Number Publication Date
JPS5716116A true JPS5716116A (en) 1982-01-27
JPS5935413B2 JPS5935413B2 (en) 1984-08-28

Family

ID=13379983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55068657A Expired JPS5935413B2 (en) 1980-05-22 1980-05-22 Method for manufacturing ultra-high tensile strength steel products with excellent ductility and toughness

Country Status (1)

Country Link
JP (1) JPS5935413B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075554A (en) * 1983-09-29 1985-04-27 Riken Seikou Kk Precipitation hardening type alloy steel for plastic mold

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131091A (en) * 1974-09-10 1976-03-16 Daiki Kk SUISENSHIKIBENKITSUKIBETSUDO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131091A (en) * 1974-09-10 1976-03-16 Daiki Kk SUISENSHIKIBENKITSUKIBETSUDO

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075554A (en) * 1983-09-29 1985-04-27 Riken Seikou Kk Precipitation hardening type alloy steel for plastic mold

Also Published As

Publication number Publication date
JPS5935413B2 (en) 1984-08-28

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