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WO2018001093A1 - Acier structural inoxydable résistant aux vibrations - Google Patents

Acier structural inoxydable résistant aux vibrations Download PDF

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Publication number
WO2018001093A1
WO2018001093A1 PCT/CN2017/088224 CN2017088224W WO2018001093A1 WO 2018001093 A1 WO2018001093 A1 WO 2018001093A1 CN 2017088224 W CN2017088224 W CN 2017088224W WO 2018001093 A1 WO2018001093 A1 WO 2018001093A1
Authority
WO
WIPO (PCT)
Prior art keywords
structural steel
strength
steel
stainless structural
stainless
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.)
Ceased
Application number
PCT/CN2017/088224
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English (en)
Chinese (zh)
Inventor
董书通
王平
董铖喆
董铖昊
张伯成
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.)
Zhengzhou Yongtong Special Steel Co
Original Assignee
Zhengzhou Yongtong Special Steel Co
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 Zhengzhou Yongtong Special Steel Co filed Critical Zhengzhou Yongtong Special Steel Co
Publication of WO2018001093A1 publication Critical patent/WO2018001093A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium

Definitions

  • the invention relates to the technical field of steel metallurgy, in particular to a high-strength earthquake-resistant stainless structural steel.
  • Existing stainless steel varieties include austenitic stainless steel, ferritic stainless steel, martensitic stainless steel, duplex stainless steel, and 200 series stainless steel.
  • Ferritic and austenitic stainless steels in these stainless steels are generally used only for the manufacture of vessels and panels due to their low strength. When used as a structural material, since the strength is low, the amount can be increased, and the cost is greatly increased.
  • Duplex stainless steel has good comprehensive performance, but the heat treatment process is difficult and the cost is too high, which is 2-3 times that of austenitic stainless steel, which limits its wide application.
  • the 200 series stainless steel is widely used due to its low price, but due to its low strength, the comprehensive mechanical properties cannot meet the requirements of becoming a structural material. Martensitic stainless steel cannot be used as structural steel due to its high brittleness and welding difficulty due to its structural properties. In the past stainless steel systems, only duplex stainless steel could be used as building structural steel.
  • the technical problem to be solved by the present invention is to provide a high-strength earthquake-resistant stainless structural steel.
  • the main components of the stainless structural steel are: Cr content 8-15%, Ni content 1-4%, P content 0.03-0.6%, C content less than 0.1%, Fe balance.
  • the stainless structural steel does not contain S, and the control O content is less than 30 ppm.
  • the metallographic structure of the stainless structural steel is one or two of sorbite and bainite, and the grain size is controlled at 7-12.
  • the grade of inclusions in stainless structural steel is controlled according to GB/T 10561-2005 in the four categories A, B, C and D are not more than 1.5.
  • the stainless steel structural steel has a breaking strength of >600 MPa, a yield strength of >450 MPa, and an elongation of >18%.
  • the stainless steel After the stainless steel is smelted by electric furnace and converter, it should be refined by AOD smelting and ladle furnace (LF), decarburization, deoxidation and desulfurization of the molten steel, and the steel is tempered and heat-treated.
  • LF AOD smelting and ladle furnace
  • the heat treatment process is natural cooling after rolling, and is naturally tempered at 600-770 °C.
  • the stainless structural steel controls the mechanical properties of the stellite stainless steel by heat treatment, and can obtain desired properties in a wide range.
  • Figure 1 is a stress-strain curve 1 of a high-strength earthquake-resistant stainless structural steel of the present invention
  • Fig. 3 is a third stress-strain curve of the high-strength earthquake-resistant stainless steel structural steel of the present invention.
  • the invention provides a high-strength earthquake-resistant stainless structural steel for the problems of low strength and poor corrosion resistance of the existing structural steel.
  • the stainless structural steel has a Cr content of 8-15%, a Ni content of 1-4%, a P content of 0.03-0.6%, a C content of less than 0.1%, and a Fe balance, wherein the stainless structural steel does not contain S, and the control
  • the O content is less than 300 ppm.
  • the metallographic structure of the obtained stainless structural steel is sorbite, the grain size is 9 grades, and the grade of inclusions is controlled according to GB/T 10561-2005 in the four categories A, B, C, and D are not greater than 1.5.

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

Abstract

La présente invention concerne un acier inoxydable résistant aux vibrations et à haute résistance, comprenant entre 10 et 15 % de chrome, entre 2 et 4 % d'élément d'alliage principalement à base d'élément de nickel, le reste étant du fer, la teneur en carbone étant régulée pour être inférieure à 0,1 %, et la teneur en phosphore étant de 0,03 à 0,6 %. L'acier inoxydable présente des caractéristiques de résistance élevée, de résistance à la corrosion, de faible rapport d'élasticité, d'allongement élevé après rupture, et est un acier structural présentant de bonnes performances au traitement et de bonnes performances au soudage.
PCT/CN2017/088224 2016-06-30 2017-06-14 Acier structural inoxydable résistant aux vibrations Ceased WO2018001093A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610504341.1A CN107557696B (zh) 2016-06-30 2016-06-30 一种抗震不锈结构钢
CN201610504341.1 2016-06-30

Publications (1)

Publication Number Publication Date
WO2018001093A1 true WO2018001093A1 (fr) 2018-01-04

Family

ID=60786452

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/088224 Ceased WO2018001093A1 (fr) 2016-06-30 2017-06-14 Acier structural inoxydable résistant aux vibrations

Country Status (2)

Country Link
CN (1) CN107557696B (fr)
WO (1) WO2018001093A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116516267A (zh) * 2023-03-21 2023-08-01 王平 经过固溶和纳米强化的索氏体高强不锈结构钢及制备方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111020364A (zh) * 2018-10-09 2020-04-17 中国电力科学研究院有限公司 一种输变电工程用高强不锈钢紧固件线材及其生产方法
CN111020401A (zh) * 2018-10-09 2020-04-17 中国电力科学研究院有限公司 一种输变电工程用不锈钢及其生产方法
CN110239165B (zh) * 2019-07-08 2020-06-19 巩义市永裕节能新材料厂 建筑施工或模板用高强度不锈钢中空复合板及其制造方法
CN110408854B (zh) * 2019-08-14 2020-10-20 王平 一种贝氏体不锈钢及其制备方法
CN110512143A (zh) * 2019-09-09 2019-11-29 王平 一种抗震耐火高强韧不锈结构钢及其制备方法
CN110578101B (zh) * 2019-10-14 2020-08-07 王平 一种海洋用回火索氏体高强韧不锈结构钢及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295769A (en) * 1980-02-28 1981-10-20 Armco Inc. Copper and nitrogen containing austenitic stainless steel and fastener
US4523951A (en) * 1982-12-14 1985-06-18 Earle M. Jorgensen Co. Stainless steel
JPS61143562A (ja) * 1984-12-17 1986-07-01 Nippon Steel Corp クリ−プ破断延性のすぐれたＮｉ−Ｃｒオ−ステナイト系ステンレス鋼
JP2006299375A (ja) * 2005-04-25 2006-11-02 Nippon Steel & Sumikin Stainless Steel Corp 自動車構造用マルテンサイト系ステンレス鋼板
EP1722000A1 (fr) * 2005-05-12 2006-11-15 Gainsmart Group Limited, a Corporation of the British Virgin Islands with offices at: Acier à haute résistance inoxydable au chrome-nickel sans aluminium et titan, et procédé de production correspondant

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100453685C (zh) * 2006-07-11 2009-01-21 无锡西姆莱斯石油专用管制造有限公司 高Cr系不锈钢无缝油井管及其生产方法
CN102260833B (zh) * 2010-05-25 2013-12-11 宝山钢铁股份有限公司 高性能b4003m货车用不锈钢
CN103014549B (zh) * 2012-12-26 2015-11-18 振石集团东方特钢股份有限公司 一种高性能双相不锈钢及其加工方法
CN104862615B (zh) * 2015-03-31 2017-03-15 无锡市华尔泰机械制造有限公司 一种s31803双相不锈钢法兰的生产工艺

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295769A (en) * 1980-02-28 1981-10-20 Armco Inc. Copper and nitrogen containing austenitic stainless steel and fastener
US4523951A (en) * 1982-12-14 1985-06-18 Earle M. Jorgensen Co. Stainless steel
JPS61143562A (ja) * 1984-12-17 1986-07-01 Nippon Steel Corp クリ−プ破断延性のすぐれたＮｉ−Ｃｒオ−ステナイト系ステンレス鋼
JP2006299375A (ja) * 2005-04-25 2006-11-02 Nippon Steel & Sumikin Stainless Steel Corp 自動車構造用マルテンサイト系ステンレス鋼板
EP1722000A1 (fr) * 2005-05-12 2006-11-15 Gainsmart Group Limited, a Corporation of the British Virgin Islands with offices at: Acier à haute résistance inoxydable au chrome-nickel sans aluminium et titan, et procédé de production correspondant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116516267A (zh) * 2023-03-21 2023-08-01 王平 经过固溶和纳米强化的索氏体高强不锈结构钢及制备方法
CN116516267B (zh) * 2023-03-21 2024-03-29 王平 经过固溶和纳米强化的索氏体高强不锈结构钢及制备方法

Also Published As

Publication number Publication date
CN107557696A (zh) 2018-01-09
CN107557696B (zh) 2019-02-26

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