WO2020111782A8 - 저농도 황산/염산 복합 응축 분위기에서 내식성을 갖는 강판 및 그 제조방법 - Google Patents

저농도 황산/염산 복합 응축 분위기에서 내식성을 갖는 강판 및 그 제조방법 Download PDF

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Publication number
WO2020111782A8
WO2020111782A8 PCT/KR2019/016491 KR2019016491W WO2020111782A8 WO 2020111782 A8 WO2020111782 A8 WO 2020111782A8 KR 2019016491 W KR2019016491 W KR 2019016491W WO 2020111782 A8 WO2020111782 A8 WO 2020111782A8
Authority
WO
WIPO (PCT)
Prior art keywords
steel sheet
manufacturing
corrosion resistance
low concentration
method therefor
Prior art date
Application number
PCT/KR2019/016491
Other languages
English (en)
French (fr)
Other versions
WO2020111782A1 (ko
Inventor
이병호
조민호
홍영광
Original Assignee
주식회사 포스코
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
Priority claimed from KR1020190153369A external-priority patent/KR102276233B1/ko
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to JP2021531263A priority Critical patent/JP7324844B2/ja
Priority to CN201980079007.8A priority patent/CN113166889A/zh
Publication of WO2020111782A1 publication Critical patent/WO2020111782A1/ko
Publication of WO2020111782A8 publication Critical patent/WO2020111782A8/ko

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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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • 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
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

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 Sheet Steel (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

본 발명의 일 실시예에 의한 내식성 강판은, 중량%로, 탄소(C): 0.15% 이하(0%를 제외함), 망간(Mn): 0.5 내지 1.5%, 안티몬(Sb): 0.05 내지 0.2% 및 주석(Sn): 0.03 내지 0.45%을 포함하고, 텅스텐(W) 및 구리(Cu) 중 1종 이상을 포함하되, 텅스텐(W)을 단독으로 0.45%이하(0%를 제외함)로 포함하거나, 구리(Cu)를 단독으로 0.005 내지 0.05% 포함하거나, 텅스텐(W) 및 구리(Cu)를 그 합량으로 0.005 내지 0.5% 포함하고, 잔부 철(Fe) 및 불가피한 불순물을 포함하고, 하기 식 1을 만족한다. [식 1] 5×[Sb] + 3×[Sn] + [W] - 2×[Cu] ≥ 0.70 (식 1에서, [Sb], [Sn], [W] 및 [Cu]는 각각 강판 내의 Sb, Sn, W 및 Cu의 함량(중량%)을 나타낸다. 단, W 또는 Cu를 포함하지 않는 경우 [W] 또는 [Cu]는 0을 나타낸다.)
PCT/KR2019/016491 2018-11-30 2019-11-27 저농도 황산/염산 복합 응축 분위기에서 내식성을 갖는 강판 및 그 제조방법 WO2020111782A1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021531263A JP7324844B2 (ja) 2018-11-30 2019-11-27 低濃度硫酸／塩酸複合凝縮雰囲気で耐食性を有する鋼板およびその製造方法
CN201980079007.8A CN113166889A (zh) 2018-11-30 2019-11-27 在低浓度硫酸/盐酸复合冷凝气氛下具有耐腐蚀性的钢板及其制备方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20180152981 2018-11-30
KR10-2018-0152981 2018-11-30
KR1020190153369A KR102276233B1 (ko) 2018-11-30 2019-11-26 저농도 황산/염산 복합 응축 분위기에서 내식성을 갖는 강판 및 그 제조방법
KR10-2019-0153369 2019-11-26

Publications (2)

Publication Number Publication Date
WO2020111782A1 WO2020111782A1 (ko) 2020-06-04
WO2020111782A8 true WO2020111782A8 (ko) 2021-07-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/016491 WO2020111782A1 (ko) 2018-11-30 2019-11-27 저농도 황산/염산 복합 응축 분위기에서 내식성을 갖는 강판 및 그 제조방법

Country Status (2)

Country Link
JP (1) JP7324844B2 (ko)
WO (1) WO2020111782A1 (ko)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4105962B2 (ja) * 2003-02-28 2008-06-25 新日本製鐵株式会社 空気予熱器伝熱エレメント用の耐硫酸露点腐食鋼冷延鋼板およびその製造方法
JP4904847B2 (ja) * 2006-02-24 2012-03-28 Ｊｆｅスチール株式会社 耐酸腐食性に優れる鋼材
JP4997808B2 (ja) * 2006-03-30 2012-08-08 Ｊｆｅスチール株式会社 耐塩酸性に優れる耐硫酸露点腐食鋼
JP4811277B2 (ja) * 2007-01-16 2011-11-09 住友金属工業株式会社 石炭・鉱石運搬船ホールド用耐食性鋼材
JP5740847B2 (ja) * 2009-06-26 2015-07-01 Ｊｆｅスチール株式会社 高強度溶融亜鉛めっき鋼板およびその製造方法
JP5999196B2 (ja) * 2012-12-05 2016-09-28 Ｊｆｅスチール株式会社 耐アルコール孔食性および耐アルコールｓｃｃ性に優れた鋼材
CN107636185B (zh) * 2015-06-22 2019-07-12 杰富意钢铁株式会社 乙醇储存及输送设备用钢
JP6658412B2 (ja) * 2016-09-06 2020-03-04 Ｊｆｅスチール株式会社 塗装耐久性に優れた構造用鋼材および構造物
KR101787282B1 (ko) * 2016-09-27 2017-11-15 현대제철 주식회사 응축수 부식 저항성을 갖는 내식강 및 그 제조 방법
CN109790607B (zh) * 2016-10-06 2021-03-12 杰富意钢铁株式会社 船舶压载舱用钢材和船舶
JP6645462B2 (ja) * 2017-03-14 2020-02-14 Ｊｆｅスチール株式会社 鋼材およびその製造方法
JP6501043B1 (ja) * 2017-06-30 2019-04-17 Ｊｆｅスチール株式会社 構造用鋼材および構造物

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Publication number Publication date
WO2020111782A1 (ko) 2020-06-04
JP7324844B2 (ja) 2023-08-10
JP2022510981A (ja) 2022-01-28

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