FR2102449A5 - Ductile low temp steel - contg nickel, hot-rolled and heat -treated to form ultrafine austenite - Google Patents

Ductile low temp steel - contg nickel, hot-rolled and heat -treated to form ultrafine austenite

Info

Publication number
FR2102449A5
FR2102449A5 FR7028743A FR7028743A FR2102449A5 FR 2102449 A5 FR2102449 A5 FR 2102449A5 FR 7028743 A FR7028743 A FR 7028743A FR 7028743 A FR7028743 A FR 7028743A FR 2102449 A5 FR2102449 A5 FR 2102449A5
Authority
FR
France
Prior art keywords
treated
heat
contg
rolled
nickel
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
FR7028743A
Other languages
French (fr)
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
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to FR7028743A priority Critical patent/FR2102449A5/en
Application granted granted Critical
Publication of FR2102449A5 publication Critical patent/FR2102449A5/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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/001—Heat treatment of ferrous alloys containing Ni
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel

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)

Abstract

The steel contg. by wt. =0.2% C, 0.05-0.04% Si, 0.3-5% Mn (where 0.3-0.9% Mn may be replaced by equiv. Cu) and 4-7.5% Ni as main alloying elements and opt. 0.05-1% Mo (replaceable by W), 0.1-2% Cu, 0.1-1.5% Cr, =1% Nb, =1% V, =0.05% acid-soluble Al (replaceable by other nitride-forming elements), bal. Fe and tramp elements is heat-treated by once or repeatedly heating quenching or cooling in air at or from a temp. between the Ac1-transition point and the Ac3-transition point, and then tempering below the Ac1-transition point, so that a mixed structure of ferrite, tempered martensite and ultrafine deposited austenite is formed. Prod. combines strength and ductility at low temps.
FR7028743A 1970-08-04 1970-08-04 Ductile low temp steel - contg nickel, hot-rolled and heat -treated to form ultrafine austenite Expired FR2102449A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7028743A FR2102449A5 (en) 1970-08-04 1970-08-04 Ductile low temp steel - contg nickel, hot-rolled and heat -treated to form ultrafine austenite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7028743A FR2102449A5 (en) 1970-08-04 1970-08-04 Ductile low temp steel - contg nickel, hot-rolled and heat -treated to form ultrafine austenite

Publications (1)

Publication Number Publication Date
FR2102449A5 true FR2102449A5 (en) 1972-04-07

Family

ID=9059766

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7028743A Expired FR2102449A5 (en) 1970-08-04 1970-08-04 Ductile low temp steel - contg nickel, hot-rolled and heat -treated to form ultrafine austenite

Country Status (1)

Country Link
FR (1) FR2102449A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1021357B1 (en) * 2012-04-13 2015-11-05 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) THICK PLATE OF STEEL HAS EXCELLENT TENACITY AT ULTRA LOW TEMPERATURE
BE1021749B1 (en) * 2012-03-09 2016-01-15 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd) THICK PLATE OF STEEL HAS EXCELLENT TENACITY AT ULTRA LOW TEMPERATURE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1021749B1 (en) * 2012-03-09 2016-01-15 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd) THICK PLATE OF STEEL HAS EXCELLENT TENACITY AT ULTRA LOW TEMPERATURE
BE1021357B1 (en) * 2012-04-13 2015-11-05 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) THICK PLATE OF STEEL HAS EXCELLENT TENACITY AT ULTRA LOW TEMPERATURE

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Legal Events

Date Code Title Description
ST Notification of lapse