EP0969113B1 - Acier inoxydable austenitique à basse teneur en nickel - Google Patents

Acier inoxydable austenitique à basse teneur en nickel Download PDF

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Publication number
EP0969113B1
EP0969113B1 EP99401490A EP99401490A EP0969113B1 EP 0969113 B1 EP0969113 B1 EP 0969113B1 EP 99401490 A EP99401490 A EP 99401490A EP 99401490 A EP99401490 A EP 99401490A EP 0969113 B1 EP0969113 B1 EP 0969113B1
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EP
European Patent Office
Prior art keywords
corrosion
steel
nickel
content
calcium
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.)
Revoked
Application number
EP99401490A
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German (de)
English (en)
French (fr)
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EP0969113A1 (fr
Inventor
Pascale Haudrechy
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.)
Ugitech SA
Aperam Stainless France SAS
Original Assignee
Ugine SA
Ugine Savoie Imphy SA
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Publication date
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Application filed by Ugine SA, Ugine Savoie Imphy SA filed Critical Ugine SA
Publication of EP0969113A1 publication Critical patent/EP0969113A1/fr
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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper

Definitions

  • the invention relates to an austenitic stainless steel comprising low nickel content and corrosion resistant in particular, the generalized corrosion, pitting corrosion, and cavernous corrosion.
  • Patents are known for steels whose composition contains, in proportion, the basic elements such as chromium, nickel, manganese, copper, silicon, giving an austenitic structure.
  • patent application in France N ° 70 27 948 presents an austenitic steel whose composition is as follows: carbon: 0.05% -0.15%; silicon: 0.3% -1.0%; manganese: 4% -12%; nickel: 0.5% -3%; chromium: 13% -16%; nitrogen: 0.05% -0.2%.
  • This patent application discloses compositions of austenitic stainless steels with low nickel content and relatively high manganese content having corrosion resistance equivalent or superior to that of conventional commercial grades with high nickel content, such as AISI 304, 301, 201, 202, after immersion tests in chlorinated medium and test in SO 2 . It is well specified the influence of copper, molybdenum and nickel, nickel having to be in low content, but the influence of elements such as calcium, boron, sulfur, is not approached.
  • patent JP 54038217 deals with a steel Manganese austenitic with the following composition:: carbon: less than 0.04%; silicon: less than 1%; manganese: 6% -13%; nickel: 1.0% -3.5%; chromium: 13% -19%; niobium: less than 0.3%; copper: 1.0% -3.5%, earth rare: 0.005% -0.3%.
  • the steel described has a resistance to corrosion. at least equivalent to that of stainless steel type AISI 304 and, a high resistance to intergranular corrosion. It is not about elements sulfur, calcium and boron or their influence on the different types of corrosion.
  • patent JP 52024914 presents a steel austenitic, the composition of which is as follows: carbon: 0.11% -0.15%; silicon: less than 1%; manganese: 8.0% -11%; nickel: 1.0% -3.5%; chromium: 16% -18%; nitrogen: 0.05% -0.15%; copper: 0.5% -3.5%; molybdenum: less than 0.5%. It is taught that lower nickel content will not harm not corrosion. The influence of elements such as sulfur, boron is not not presented.
  • the present invention aims to develop an austenitic steel with a very low nickel content which exhibits close corrosion resistance that of AISI 304 steel, in particular in the field of resistance to pitting, cavernous and generalized corrosion.
  • the steel may also contain from 0.01% to 2% molybdenum.
  • Figures 1 and 2 show the comparative values of the potential pitting, respectively in NaCI, 0.02M, pH 6.6 and 23 ° C and NaCI, 0.5M, pH 6.6 and 23 ° C, for different types of steels taken as reference and for three compositions according to the invention marked with an asterisk.
  • FIG. 3 shows the evolution of the pitting potentials, in NaCl, 0.02M, pH 6.6 and 23 ° C, depending on the sulfur content for two reference steels and two steels according to the invention, one of which comprises in its composition a low chromium content.
  • Figure 4 presents characteristics of resistance to corrosion cavernous in chlorinated medium for three steels taken as reference and three steels according to the invention and comprising in their composition different nickel contents.
  • Figures 5 and 6 show the comparative values of the potential of sting respectively in NaCI, 0.02M, pH 6.6 and 23 ° C and in NaCI, 0.5M, pH 6.6 and 23 ° C for different types of steels allowing highlight the influence of boron.
  • the steel according to the invention has been developed in order to meet the corrosion criteria and in particular the criteria for pitting corrosion, widespread and cavernous.
  • Table 1 The chemical compositions of the steels tested are presented in Table 1, the first column giving casting references of tested steels, the steels according to the invention being marked with an asterisk.
  • Table 2 presents the chemical compositions of the reference steels known and tested, for comparison.
  • Tables 3 and 4 show the results of corrosion tests which justify the choice of the composition according to the invention.
  • For pitting corrosion we give the potential E1 which corresponds to the probability of 1 pitting per cm 2 .
  • For the cavernous corrosion the values of critical current densities i given in different NaCl solutions, 2M of variable pH are given.
  • For the generalized corrosion the values of the critical current densities i are given in an acid solution H 2 SO 4 , 2M.
  • the intergranular corrosion results are given in Table 4 in the form of mass losses ⁇ m and maximum crack depth in ⁇ m. Results of pitting, cavernous and generalized corrosion tests.
  • Sulfur has no effect in terms of general corrosion resistance. In the field of cavernous corrosion, it slightly degrades the resistance to ignition and to the propagation of corrosion, with a higher critical current i at a pH greater than or equal to 2.0 when the sulfur content increases. On the other hand, in the area of pitting corrosion, its effect is much greater. By lowering the sulfur content to levels of the order of 10 10 -4 %, in the composition of steels containing in their composition little nickel, the resistance to initiation of the pitting is greatly improved.
  • the steel according to the invention has the same properties as a reference steel AISI 304 or an AISI 430 Ti steel which comprises around 30 10 -4 % of sulfur, while low nickel steel, with a sulfur content of 30 10 -4 %, behaves like a reference steel AISI 430 Nb.
  • nickel is very beneficial in the field of generalized corrosion and cavernous corrosion.
  • a nickel content of less than 2% is preferable for good resistance to pitting corrosion.
  • Figure 4 presents, in the form of curves giving the values activity currents as a function of the pH of a chlorinated solution, the cavernous corrosion behavior of various reference steels and steels according to the invention.
  • the activity currents are proportional to the corrosion rate. The more the curve is located towards the abscissa, the lower the corrosion rates and therefore the better the corrosion resistance. The effect of copper.
  • Copper has a beneficial effect in the field of corrosion widespread. To have a behavior equivalent to that of a steel of type AISI 304, it is shown by the behavior of steel 804 that a copper content of 2% can be considered insufficient, so that a copper content of 3% is better, as shown by the behavior of steel 801.
  • Copper however, has a detrimental effect on resistance to corrosion by pitting, as shown in Figures 1 and 2 or Table 3.
  • Steel 801 with a copper content of 3% has pitting potentials less than those of 804 steel with a copper content of 2%.
  • the content of copper is according to the invention, preferably limited to 4%.
  • the calcium content must be very low, i.e. less than 20.10 -4 % and preferably less than 10.10 -4 %.
  • Chromium is beneficial in the field of corrosion generalized, pitting corrosion and cavernous corrosion as it appears in table 3 by comparing the values obtained on steels 584 and 723, 801 and 806. A minimum content of 15% is necessary to ensure good corrosion behavior, but a content of 16.5% is preferable to obtain corrosion resistance that meets a corrosion resistance comparable to that of a standard steel of the type AISI 304 or AISI 430 Ti.
  • the steel according to the invention exhibits corrosion resistance comparable to that of AISI 304 reference steel but contains in its little nickel composition.
  • the steel according to the invention has a much higher behavior. to that of steels of the type AISI 430 Ti in the field of corrosion widespread and cavernous.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Soft Magnetic Materials (AREA)
  • Hard Magnetic Materials (AREA)
  • Laminated Bodies (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Chemically Coating (AREA)
  • Catalysts (AREA)
  • Heat Treatment Of Steel (AREA)
EP99401490A 1998-07-02 1999-06-17 Acier inoxydable austenitique à basse teneur en nickel Revoked EP0969113B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9808427A FR2780735B1 (fr) 1998-07-02 1998-07-02 Acier inoxydable austenitique comportant une basse teneur en nickel et resistant a la corrosion
FR9808427 1998-07-02

Publications (2)

Publication Number Publication Date
EP0969113A1 EP0969113A1 (fr) 2000-01-05
EP0969113B1 true EP0969113B1 (fr) 2002-11-06

Family

ID=9528148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99401490A Revoked EP0969113B1 (fr) 1998-07-02 1999-06-17 Acier inoxydable austenitique à basse teneur en nickel

Country Status (14)

Country Link
US (1) US6274084B1 (ko)
EP (1) EP0969113B1 (ko)
JP (1) JP2000034546A (ko)
KR (1) KR20000011411A (ko)
CN (1) CN1091168C (ko)
AT (1) ATE227355T1 (ko)
AU (1) AU742519B2 (ko)
BR (1) BR9902524A (ko)
CA (1) CA2274634A1 (ko)
DE (1) DE69903769D1 (ko)
FR (1) FR2780735B1 (ko)
ID (1) ID23569A (ko)
TW (1) TW452600B (ko)
ZA (1) ZA994321B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015005742A1 (de) 2015-05-05 2016-11-10 Dbi Gas- Und Umwelttechnik Gmbh Verfahren zur Herstellung von Feinblech aus einem nichtrostenden, austenitischen CrMnNi-Stahl

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GB2359095A (en) * 2000-02-14 2001-08-15 Jindal Strips Ltd Stainless steel
DE10046181C2 (de) * 2000-09-19 2002-08-01 Krupp Thyssen Nirosta Gmbh Verfahren zum Herstellen eines überwiegend aus Mn-Austenit bestehenden Stahlbands oder -blechs
FR2819526B1 (fr) * 2001-01-15 2003-09-26 Inst Francais Du Petrole Utilisation d'aciers inoxydables austenitiques dans des applications necessitant des proprietes anti-cokage
TWI247813B (en) * 2002-10-23 2006-01-21 Yieh United Steel Corp Austenite stainless steel with low nickel content
JP4782979B2 (ja) * 2003-03-31 2011-09-28 大陽日酸株式会社 溶接方法
JP4498847B2 (ja) * 2003-11-07 2010-07-07 新日鐵住金ステンレス株式会社 加工性に優れたオ−ステナイト系高Ｍｎステンレス鋼
EP1690957A1 (en) * 2005-02-14 2006-08-16 Rodacciai S.p.A. Austenitic stainless steel
CN100386464C (zh) * 2006-07-21 2008-05-07 内蒙古华业特钢股份有限公司 稀土低镍铬锰氮不锈钢
CN100464000C (zh) * 2007-06-12 2009-02-25 江阴康瑞不锈钢制品有限公司 奥氏体冷镦不锈钢及其钢丝的制造方法
CN101348888A (zh) * 2007-07-18 2009-01-21 青岛三庆金属有限公司 低镍奥氏体不锈钢及其制备方法
KR101587392B1 (ko) 2007-11-29 2016-01-21 에이티아이 프로퍼티즈, 인코퍼레이티드 린 오스테나이트계 스테인리스 강
US8337749B2 (en) 2007-12-20 2012-12-25 Ati Properties, Inc. Lean austenitic stainless steel
PL2229463T3 (pl) 2007-12-20 2018-01-31 Ati Properties Llc Odporna na korozję zubożona austenityczna stal nierdzewna
EP2245202B1 (en) * 2007-12-20 2011-08-31 ATI Properties, Inc. Austenitic stainless steel low in nickel containing stabilizing elements
JP5388589B2 (ja) * 2008-01-22 2014-01-15 新日鐵住金ステンレス株式会社 加工性と衝撃吸収特性に優れた構造部材用フェライト・オーステナイト系ステンレス鋼板およびその製造方法
CN101545078B (zh) * 2008-03-24 2011-06-15 宝山钢铁股份有限公司 一种室温机械性能优良的节镍型亚稳奥氏体不锈钢
EP2163659B1 (de) 2008-09-11 2016-06-08 Outokumpu Nirosta GmbH Nichtrostender Stahl, aus diesem Stahl hergestelltes Kaltband und Verfahren zur Herstellung eines Stahlflachprodukts aus diesem Stahl
SE533635C2 (sv) 2009-01-30 2010-11-16 Sandvik Intellectual Property Austenitisk rostfri stållegering med låg nickelhalt, samt artikel därav
JP5444561B2 (ja) * 2009-02-27 2014-03-19 日本冶金工業株式会社 高Ｍｎオーステナイト系ステンレス鋼と服飾用金属部品
US8182963B2 (en) * 2009-07-10 2012-05-22 GM Global Technology Operations LLC Low-cost manganese-stabilized austenitic stainless steel alloys, bipolar plates comprising the alloys, and fuel cell systems comprising the bipolar plates
CN101760705B (zh) * 2010-02-10 2011-12-21 江苏东阁不锈钢制品有限公司 高耐蚀性奥氏体不锈钢
FI125442B (fi) 2010-05-06 2015-10-15 Outokumpu Oy Matalanikkelinen austeniittinen ruostumaton teräs ja teräksen käyttö
CN102031462B (zh) * 2010-12-20 2012-10-31 北京北科德瑞冶金工程技术有限公司 一种含硼高锰奥氏体铁基合金
US9028745B2 (en) 2011-11-01 2015-05-12 Honeywell International Inc. Low nickel austenitic stainless steel
ITRM20120647A1 (it) * 2012-12-19 2014-06-20 Ct Sviluppo Materiali Spa ACCIAIO INOSSIDABILE AUSTENITICO AD ELEVATA PLASTICITÀ INDOTTA DA GEMINAZIONE, PROCEDIMENTO PER LA SUA PRODUZIONE, E SUO USO NELLÂeuro¿INDUSTRIA MECCANICA.
JP2016169421A (ja) * 2015-03-13 2016-09-23 日新製鋼株式会社 耐応力腐食割れ性に優れたオーステナイト系ステンレス鋼
KR20210028382A (ko) * 2019-09-04 2021-03-12 주식회사 포스코 충격인성 및 열간가공성이 우수한 고내식 오스테나이트계 스테인리스강
CN115637376B (zh) * 2021-07-20 2024-01-16 上海交通大学 一种奥氏体不锈钢及其热处理工艺

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015005742A1 (de) 2015-05-05 2016-11-10 Dbi Gas- Und Umwelttechnik Gmbh Verfahren zur Herstellung von Feinblech aus einem nichtrostenden, austenitischen CrMnNi-Stahl

Also Published As

Publication number Publication date
CN1240839A (zh) 2000-01-12
AU742519B2 (en) 2002-01-03
CN1091168C (zh) 2002-09-18
FR2780735A1 (fr) 2000-01-07
EP0969113A1 (fr) 2000-01-05
ID23569A (id) 2000-05-04
ATE227355T1 (de) 2002-11-15
JP2000034546A (ja) 2000-02-02
TW452600B (en) 2001-09-01
ZA994321B (en) 2000-01-10
FR2780735B1 (fr) 2001-06-22
CA2274634A1 (fr) 2000-01-02
BR9902524A (pt) 2000-03-14
AU3575799A (en) 2000-01-20
US6274084B1 (en) 2001-08-14
KR20000011411A (ko) 2000-02-25
DE69903769D1 (de) 2002-12-12

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