JPS5487629A - Method of producing ferrite stainless steel for welded construction - Google Patents

Method of producing ferrite stainless steel for welded construction

Info

Publication number
JPS5487629A
JPS5487629A JP15539077A JP15539077A JPS5487629A JP S5487629 A JPS5487629 A JP S5487629A JP 15539077 A JP15539077 A JP 15539077A JP 15539077 A JP15539077 A JP 15539077A JP S5487629 A JPS5487629 A JP S5487629A
Authority
JP
Japan
Prior art keywords
billet
molten steel
stainless steel
possibly
stand
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
JP15539077A
Other languages
Japanese (ja)
Other versions
JPS5941487B2 (en
Inventor
Takanori Nakazawa
Tatsuya Sunami
Sumio Suzuki
Tadashi Nishi
Masanori Miyoshi
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 JP15539077A priority Critical patent/JPS5941487B2/en
Publication of JPS5487629A publication Critical patent/JPS5487629A/en
Publication of JPS5941487B2 publication Critical patent/JPS5941487B2/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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To eliminate deterioration in toughness and workability due to welding through hot rolling of a billet containing a specified components along with AL2O3 inclusion at a limited area factor produced by a continuous casting of a molten steel which has been allowed to stand for more than 20 minutes following addition of Al, Nb and possible V. CONSTITUTION:A molten steel is mixed with Al, Nb and possibly with V and allowed to stand for more than 20 minutes. This molten steel is treated by continuous casting or blooming to produce a billet or bloom, with the following composition, retaining Al2O3 inclusion with a diameter of more than 5 mum in dia. at a area factor of less than 0.01%: C<= (preferably 0.01%), Si<0.5%, Mn <0.5%, Cr ranging from 12 to 30%, Mo from 0.2 to 5%, Al from 0.04 to 0.1%, Nb from 0.02 to 0.25%, N<= 0.02% and possibly V fro 0.02 to 0.8%. This billet is hot- rolled. The steel thus obtained is applicable for welding construction materials for oil refining apparatus and other various chemical apparatus.
JP15539077A 1977-12-23 1977-12-23 Manufacturing method of ferrite stainless steel for welded structures Expired JPS5941487B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15539077A JPS5941487B2 (en) 1977-12-23 1977-12-23 Manufacturing method of ferrite stainless steel for welded structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15539077A JPS5941487B2 (en) 1977-12-23 1977-12-23 Manufacturing method of ferrite stainless steel for welded structures

Publications (2)

Publication Number Publication Date
JPS5487629A true JPS5487629A (en) 1979-07-12
JPS5941487B2 JPS5941487B2 (en) 1984-10-08

Family

ID=15604896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15539077A Expired JPS5941487B2 (en) 1977-12-23 1977-12-23 Manufacturing method of ferrite stainless steel for welded structures

Country Status (1)

Country Link
JP (1) JPS5941487B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976694A (en) * 1982-10-25 1984-05-01 Nisshin Steel Co Ltd Welding wire for high purity ferritic stainless steel
JPH04228539A (en) * 1990-12-27 1992-08-18 Kawasaki Steel Corp Ferritic stainless steel excellent in high temperature strength and workability in weld zone
KR20000027022A (en) * 1998-10-26 2000-05-15 이구택 Ferritic stainless steel for exterior ornament of building having good tenacity and ductility at weld zone and method for preparation thereof
KR20000034395A (en) * 1998-11-30 2000-06-26 이구택 Ferrite type stainless steel excellent in toughness in welding unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976694A (en) * 1982-10-25 1984-05-01 Nisshin Steel Co Ltd Welding wire for high purity ferritic stainless steel
JPH04228539A (en) * 1990-12-27 1992-08-18 Kawasaki Steel Corp Ferritic stainless steel excellent in high temperature strength and workability in weld zone
KR20000027022A (en) * 1998-10-26 2000-05-15 이구택 Ferritic stainless steel for exterior ornament of building having good tenacity and ductility at weld zone and method for preparation thereof
KR20000034395A (en) * 1998-11-30 2000-06-26 이구택 Ferrite type stainless steel excellent in toughness in welding unit

Also Published As

Publication number Publication date
JPS5941487B2 (en) 1984-10-08

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