KR970043151A - Manufacturing method of thick plate steel for storage tank with excellent high temperature material characteristics - Google Patents

Manufacturing method of thick plate steel for storage tank with excellent high temperature material characteristics Download PDF

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Publication number
KR970043151A
KR970043151A KR1019950049562A KR19950049562A KR970043151A KR 970043151 A KR970043151 A KR 970043151A KR 1019950049562 A KR1019950049562 A KR 1019950049562A KR 19950049562 A KR19950049562 A KR 19950049562A KR 970043151 A KR970043151 A KR 970043151A
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KR
South Korea
Prior art keywords
manufacturing
storage tank
high temperature
thick plate
excellent high
Prior art date
Application number
KR1019950049562A
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Korean (ko)
Other versions
KR100240992B1 (en
Inventor
여조현
소문섭
박찬엽
Original Assignee
김종진
포항종합제철 주식회사
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Publication date
Application filed by 김종진, 포항종합제철 주식회사 filed Critical 김종진
Priority to KR1019950049562A priority Critical patent/KR100240992B1/en
Publication of KR970043151A publication Critical patent/KR970043151A/en
Application granted granted Critical
Publication of KR100240992B1 publication Critical patent/KR100240992B1/en

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    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C21D1/28—Normalising
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

본 발명은 석유화학 저장탱크용 소재로 사용되는 후판강재의 제조방법에 관한 것이며, 그 목적은 고온(217℃)에서는 재질열화가 발생되지 않는 후판강재의 제조방법에 관한 것이다.The present invention relates to a method for producing a thick steel plate used as a material for a petrochemical storage tank, the object of the present invention relates to a method for manufacturing a thick plate steel material does not occur at high temperatures (217 ℃).

본 발명은 중량%로, C: 0.07-0.10%, Si: 0.30-0.40%, Mn: 1.30-1.50%, P: 0.020% 이하, S: 0.010%이하, Mo: 0.25-0.35%, Nb: 0.02-0.04%, V: 0.04-0.06%, 나머지 Fe 및 기타불가피한 불순물로 조성되는 강슬라브를 통상의 방법으로 열간압연한 후 870-890℃의 온도에서 (1.0t + 5분 - 1.3t + 5분)(t: 압연된 소재 두께)동안 소준처리한 다음, 600-650℃의 온도 범위에서 1.9t(1.9+20)분 동안 소려함을 포함하여 구성되는 고온재질 특성이 우수한 저장탱크용 후판강재의 제조방법에 관한 것을 그 기술적 요지로 한다.In the present invention, by weight%, C: 0.07-0.10%, Si: 0.30-0.40%, Mn: 1.30-1.50%, P: 0.020% or less, S: 0.010% or less, Mo: 0.25-0.35%, Nb: 0.02 -0.04%, V: 0.04-0.06%, steel slab composed of the remaining Fe and other unavoidable impurities, hot-rolled in a conventional manner, at a temperature of 870-890 ° C. (1.0t + 5 min-1.3t + 5 min (t: rolled material thickness), followed by annealing for 1.9 t (1.9 + 20) minutes in the temperature range of 600-650 ° C. The technical subject matter is a manufacturing method.

Description

고온재질특성이 우수한 저장탱크용 후판강재의 제조방법Manufacturing method of thick plate steel for storage tank with excellent high temperature material characteristics

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (1)

중량%로, C: 0.07-0.10%, Si: 0.30-0.40%, Mn: 1.30-1.50%, P: 0.020% 이하, S: 0.010%이하, Mo: 0.25-0.35%, Nb: 0.02-0.04%, V: 0.04-0.06%, 나머지 Fe 및 기타 불가피한 불순물로 조성되는 강슬라브를 통상의 방법으로 열간압연한 후 870-890℃의 온도에서 (1.0t + 5분 - 1.3t + 5분)(t: 압연된 소재 두께)동안 소준처리한 다음, 600-650℃의 온도 범위에서 1.9t-(1.9t+20)분동안 소려함을 포함하여 구성되는 것을 특징으로 하는 고온재질 특성이 우수한 저장탱크용 후판강재의 제조방법.By weight%, C: 0.07-0.10%, Si: 0.30-0.40%, Mn: 1.30-1.50%, P: 0.020% or less, S: 0.010% or less, Mo: 0.25-0.35%, Nb: 0.02-0.04% , V: 0.04-0.06%, steel slab composed of the remaining Fe and other unavoidable impurities, hot-rolled in a conventional manner, and then at a temperature of 870-890 ° C. (1.0t + 5 min-1.3t + 5 min) (t : For storage tanks having excellent high temperature characteristics, characterized in that the material is composed of annealing for a thickness of the rolled material), and then for 1.9t- (1.9t + 20) minutes in a temperature range of 600-650 ° C. Method of manufacturing thick steel.
KR1019950049562A 1995-12-14 1995-12-14 The manufacturing method for plate with excellent high temperature material property KR100240992B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950049562A KR100240992B1 (en) 1995-12-14 1995-12-14 The manufacturing method for plate with excellent high temperature material property

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950049562A KR100240992B1 (en) 1995-12-14 1995-12-14 The manufacturing method for plate with excellent high temperature material property

Publications (2)

Publication Number Publication Date
KR970043151A true KR970043151A (en) 1997-07-26
KR100240992B1 KR100240992B1 (en) 2000-03-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100268843B1 (en) * 1996-12-23 2000-10-16 이구택 The manufacturing method for heat treatmented high strength steel sheet with excellent normal and high temperature strength
KR100833068B1 (en) * 2006-12-22 2008-05-27 주식회사 포스코 Fine-grained hot-rolled steel with low yield ratio
KR100833067B1 (en) * 2006-12-22 2008-05-27 주식회사 포스코 Fine-grained high strength hot-rolled with good ductility

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07242991A (en) * 1994-03-08 1995-09-19 Sumitomo Metal Ind Ltd High toughness chromium-molybdenum steel sheet excellent in weldability

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100268843B1 (en) * 1996-12-23 2000-10-16 이구택 The manufacturing method for heat treatmented high strength steel sheet with excellent normal and high temperature strength
KR100833068B1 (en) * 2006-12-22 2008-05-27 주식회사 포스코 Fine-grained hot-rolled steel with low yield ratio
KR100833067B1 (en) * 2006-12-22 2008-05-27 주식회사 포스코 Fine-grained high strength hot-rolled with good ductility

Also Published As

Publication number Publication date
KR100240992B1 (en) 2000-03-02

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