FR2231756A1 - Continuously cast steel with improved formability - contg. controlled low amt. of carbon and silicon having excellent deep drawing properties - Google Patents

Continuously cast steel with improved formability - contg. controlled low amt. of carbon and silicon having excellent deep drawing properties

Info

Publication number
FR2231756A1
FR2231756A1 FR7418457A FR7418457A FR2231756A1 FR 2231756 A1 FR2231756 A1 FR 2231756A1 FR 7418457 A FR7418457 A FR 7418457A FR 7418457 A FR7418457 A FR 7418457A FR 2231756 A1 FR2231756 A1 FR 2231756A1
Authority
FR
France
Prior art keywords
contg
continuously cast
silicon
carbon
cast steel
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
FR7418457A
Other languages
French (fr)
Other versions
FR2231756B1 (en
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
Publication of FR2231756A1 publication Critical patent/FR2231756A1/en
Application granted granted Critical
Publication of FR2231756B1 publication Critical patent/FR2231756B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

Before casting, the steel is treated in the ladle to reduce the 0 content to 600-1600 ppm and Si to 0.02% by addn. of FeMn and C. The steel is then decarburised by a vacuum treatment to reduce the C content to max. 0.10%, pref. 0.020% which is followed by deoxidation with Al, or Al and Ti. The steel contg. max. 150 ppm free 0 is continuously cast into bar having the compn. (max) 0.02%, 0.6%Mn, 0.005% diss. Al, 0.005% Ti including Ti oxide, and below 0.02% Si, balance Fe and usual impurities. Suitable for shet and strip.
FR7418457A 1973-05-29 1974-05-28 Continuously cast steel with improved formability - contg. controlled low amt. of carbon and silicon having excellent deep drawing properties Granted FR2231756A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6007373A JPS5438567B2 (en) 1973-05-29 1973-05-29

Publications (2)

Publication Number Publication Date
FR2231756A1 true FR2231756A1 (en) 1974-12-27
FR2231756B1 FR2231756B1 (en) 1977-06-24

Family

ID=13131528

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7418457A Granted FR2231756A1 (en) 1973-05-29 1974-05-28 Continuously cast steel with improved formability - contg. controlled low amt. of carbon and silicon having excellent deep drawing properties

Country Status (4)

Country Link
JP (1) JPS5438567B2 (en)
DE (1) DE2425398B2 (en)
FR (1) FR2231756A1 (en)
IT (1) IT1012864B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149521A (en) * 1974-05-24 1975-11-29
JPS6047323B2 (en) * 1976-12-04 1985-10-21 新日本製鐵株式会社 Manufacturing method for continuously cast slabs for steel plates
JPS5460275A (en) * 1977-10-22 1979-05-15 Hiroshi Uchiyama Vertical multiistep stirring tank type reactor
JPS54109019A (en) * 1978-02-14 1979-08-27 Nakayama Steel Works Ltd Production of cast strip for making super low carbon killed steel wire material
JPS5941503B2 (en) * 1979-11-21 1984-10-08 新日本製鐵株式会社 Hot-rolled steel sheet with excellent carburizing and hardenability and no abnormal structure
JPS6227425A (en) * 1985-07-30 1987-02-05 Toyobo Co Ltd Production of elastic polyester

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2231756B1 (en) 1977-06-24
IT1012864B (en) 1977-03-10
DE2425398B2 (en) 1979-06-28
JPS508713A (en) 1975-01-29
DE2425398A1 (en) 1975-01-02
JPS5438567B2 (en) 1979-11-21

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Legal Events

Date Code Title Description
ST Notification of lapse