EP0370588A1 - Procédé de fabrication de tubes en acier sans soudure ayant une résistance élevée - Google Patents

Procédé de fabrication de tubes en acier sans soudure ayant une résistance élevée Download PDF

Info

Publication number: EP0370588A1
Authority: EP; European Patent Office
Prior art keywords: steel; temperature; tubes; max; maximum
Prior art date: 1988-09-16
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

EP89250030A

Other languages

German (de)

English (en)

Other versions

EP0370588B1 (fr

Inventor

Ingo Dr.-Ing. Von Hagen

Gerd Dr.-Ing. Homberg

Christoph Dr.-Ing. Prasser

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.)

Vodafone GmbH

Original Assignee

Mannesmann AG

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.)

1988-09-16

Filing date

1989-09-07

Publication date

1990-05-30

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6363380&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0370588(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1989-09-07 Application filed by Mannesmann AG filed Critical Mannesmann AG

1989-09-07 Priority to AT89250030T priority Critical patent/ATE89869T1/de

1990-05-30 Publication of EP0370588A1 publication Critical patent/EP0370588A1/fr

1993-05-26 Application granted granted Critical

1993-05-26 Publication of EP0370588B1 publication Critical patent/EP0370588B1/fr

2009-09-07 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

229910000831 Steel Inorganic materials 0.000 title claims abstract description 15
239000010959 steel Substances 0.000 title claims abstract description 15
238000004519 manufacturing process Methods 0.000 title abstract description 4
239000000203 mixture Substances 0.000 claims abstract description 3
238000001816 cooling Methods 0.000 claims description 14
238000000034 method Methods 0.000 claims description 8
238000005096 rolling process Methods 0.000 claims description 7
230000015572 biosynthetic process Effects 0.000 claims description 5
238000005098 hot rolling Methods 0.000 claims description 5
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
229910052804 chromium Inorganic materials 0.000 claims description 4
229910000859 α-Fe Inorganic materials 0.000 claims description 4
229910052799 carbon Inorganic materials 0.000 claims description 3
229910052750 molybdenum Inorganic materials 0.000 claims description 3
229910052802 copper Inorganic materials 0.000 claims description 2
239000012535 impurity Substances 0.000 claims description 2
229910052742 iron Inorganic materials 0.000 claims description 2
229910052748 manganese Inorganic materials 0.000 claims description 2
229910052759 nickel Inorganic materials 0.000 claims description 2
229910052758 niobium Inorganic materials 0.000 claims description 2
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
229910052782 aluminium Inorganic materials 0.000 claims 1
229910052710 silicon Inorganic materials 0.000 claims 1
239000010703 silicon Substances 0.000 claims 1
238000010438 heat treatment Methods 0.000 abstract description 6
239000000463 material Substances 0.000 description 4
229910045601 alloy Inorganic materials 0.000 description 3
239000000956 alloy Substances 0.000 description 3
229910001563 bainite Inorganic materials 0.000 description 3
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
239000008186 active pharmaceutical agent Substances 0.000 description 2
238000005275 alloying Methods 0.000 description 2
238000005266 casting Methods 0.000 description 2
229910000734 martensite Inorganic materials 0.000 description 2
238000010791 quenching Methods 0.000 description 2
230000000171 quenching effect Effects 0.000 description 2
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
239000010949 copper Substances 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
238000009826 distribution Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000010606 normalization Methods 0.000 description 1
238000001953 recrystallisation Methods 0.000 description 1
238000005496 tempering Methods 0.000 description 1
229910052720 vanadium Inorganic materials 0.000 description 1

Images

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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes

Definitions

the invention relates to a method for producing high-strength seamless steel tubes by hot rolling and subsequent accelerated cooling from the rolling heat.
These pipes should be used as oilfield and line pipes and at least comply with API quality level X70.
Seamless tubes are usually produced by hot rolling steel blocks that have been heated to around 1200 - 1250 o .
the main forming of the rolling process takes place just below the block drawing temperature, i.e. at very high temperatures.
the recrystallization of the structure caused by the deformation leads to strong grain growth due to these high temperatures and consequently to a corresponding deterioration in the toughness behavior of the materials. It has therefore always been considered necessary to connect a separate heat treatment in the form of a normalization or tempering treatment to the rolling process, in which a finer structure and thereby an improvement in the toughness properties is achieved by re-grain.
Such heat treatment requires a significant amount of time and money, so it is desirable to find a way to avoid this additional treatment.
a bainitic structure provides good toughness properties.
this route has so far not been practical for large-scale use because the temperature control during the accelerated cooling could not take place in such a way that the bainite region was reached safely.
the object of the invention is therefore to provide a method of the generic type with which seamless tubes with high yield strengths and high tensile strengths can be produced with good toughness properties (A v + 20 ° C > 60 J) (API quality level X70 or higher), without having to undergo additional heat treatment after rolling.
a v + 20 ° C > 60 J API quality level X70 or higher
temperature differences in the rolled tube of at least 100-150 K should be permissible without the required properties being called into question, and the material used should be inexpensive to produce, so it does not require large amounts of expensive alloying elements.
the solution according to the invention essentially consists of a targeted selection of materials with narrow limits for the individual alloy elements and predetermined design rules for individual elements with one another, and a quenching treatment tailored to this material.
a steel was found which is not only inexpensive to produce because it does not require large amounts of expensive alloying elements, but which surprisingly ensures the formation of bainite over a wide temperature interval (e.g. 150 K) of cooling (capture temperature).
the formation of ferrite can easily be limited to uncritical values of less than 10% structure. It was found that the ratio of the elements copper and nickel to one another and the sum of the contents of Cr and Mo are extremely important for the cooling behavior with regard to achieving uniform strength and toughness values. This also applies to the narrowly limited content of carbon.
the method according to the invention enables the production of high-strength steel pipes as oilfield and conduit pipes using an inexpensive alloy and in spite of the absence of a (costly) separate heat treatment, and by accelerated cooling from the rolling heat even on pipes that have an uneven temperature distribution, certainly a bainitic Microstructure with good toughness properties is generated over the entire pipe length. Differences in the interception temperature of up to 150 K and, depending on the setting of the alloy, also beyond do not have a critical effect on the strength and toughness properties.

Landscapes

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

EP89250030A 1988-09-16 1989-09-07 Procédé de fabrication de tubes en acier sans soudure ayant une résistance élevée Expired - Lifetime EP0370588B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT89250030T ATE89869T1 (de)	1988-09-16	1989-09-07	Verfahren zur herstellung hochfester nahtloser stahlrohre.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3832014		1988-09-16
DE3832014A DE3832014C2 (de)	1988-09-16	1988-09-16	Verfahren zur Herstellung hochfester nahtloser Stahlrohre

Publications (2)

Publication Number	Publication Date
EP0370588A1 true EP0370588A1 (fr)	1990-05-30
EP0370588B1 EP0370588B1 (fr)	1993-05-26

Family

ID=6363380

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89250030A Expired - Lifetime EP0370588B1 (fr)	1988-09-16	1989-09-07	Procédé de fabrication de tubes en acier sans soudure ayant une résistance élevée

Country Status (5)

Country	Link
US (1)	US5019180A (fr)
EP (1)	EP0370588B1 (fr)
JP (1)	JPH02115318A (fr)
AT (1)	ATE89869T1 (fr)
DE (2)	DE3832014C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0526330A1 (fr) *	1991-07-30	1993-02-03	Ascometal	Procédé de fabrication d'un tube en acier à paroi mince, acier pour la réalisation de ce tube et tube pour cadre de cycle obtenu

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2711163B2 (ja) *	1990-01-12	1998-02-10	新日本製鐵株式会社	耐ｃｏ▲下２▼腐食性の優れた高耐食性低合金ラインパイプ用鋼の製造法
AT902U1 (de) *	1995-08-28	1996-07-25	Plansee Ag	Verfahren zur herstellung nahtloser rohre
DE59704264D1 (de) *	1997-01-15	2001-09-13	Mannesmann Ag	Verfahren zur herstellung nahtloser leitungsrohre mit stabiler streckgrenze bei erhöhten einsatztemperaturen
DE102008011856A1 (de) *	2008-02-28	2009-09-10	V&M Deutschland Gmbh	Hochfester niedriglegierter Stahl für nahtlose Rohre mit hervorragender Schweißbarkeit und Korrosionsbeständigkeit
CN101829679B (zh) *	2009-03-09	2013-09-04	鞍钢股份有限公司	一种改善热轧油井管接箍料冲击韧性的生产方法
CN103627887B (zh) *	2013-08-28	2015-06-03	内蒙古北方重工业集团有限公司	消除低碳低合金耐热钢碳化物析出的热处理方法
CN106676391A (zh) *	2016-12-12	2017-05-17	中国长江三峡集团公司	一种大型水轮发电机组主轴锻件
CN106591720A (zh) *	2016-12-12	2017-04-26	中国长江三峡集团公司	大型水轮发电机组主轴锻件
CN109001106B (zh) *	2018-06-05	2022-04-22	长江三峡技术经济发展有限公司	一种水轮发电机高强度热轧磁轭钢板冲击吸收能量有效考核方法
CN113249553B (zh) *	2021-06-25	2021-11-05	宁波威乐新材料科技有限公司	一种钢材的淬火方法、热成型工艺以及钢材工件
CN116926412B (zh) *	2022-03-29	2026-01-16	宝山钢铁股份有限公司	一种贝氏体无缝钢管及其制造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT193914B (de) *	1954-06-02	1957-12-10	Oesterr Alpine Montan	Stahl für Bewehrungszwecke im Bauwesen
FR1566594A (fr) *	1968-03-22	1969-05-09
CH507373A (de) *	1968-01-31	1971-05-15	Mitsubishi Heavy Ind Ltd	Verfahren zur Herstellung eines hochzugfesten schweissbaren Stahls
DE2649019B2 (de) *	1976-06-14	1979-10-25	Nippon Steel Corp., Tokio	Verfahren zum Herstellen nahtloser Rohre
EP0092629A1 (fr) *	1982-04-22	1983-11-02	Ugine Savoie	Procédé de fabrication de barres et de tubes en aciers à hautes caractéristiques mécaniques
GB2137539A (en) *	1983-03-28	1984-10-10	Mannesmann Ag	Manufacturing seamless steel pipe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5397922A (en) *	1977-02-08	1978-08-26	Nippon Kokan Kk <Nkk>	Manufacture of non-refined high tensile steel

1988
- 1988-09-16 DE DE3832014A patent/DE3832014C2/de not_active Expired - Fee Related
1989
- 1989-09-07 DE DE8989250030T patent/DE58904493D1/de not_active Expired - Fee Related
- 1989-09-07 EP EP89250030A patent/EP0370588B1/fr not_active Expired - Lifetime
- 1989-09-07 AT AT89250030T patent/ATE89869T1/de not_active IP Right Cessation
- 1989-09-11 JP JP1235473A patent/JPH02115318A/ja active Pending
1990
- 1990-02-07 US US07/477,047 patent/US5019180A/en not_active Expired - Fee Related

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT193914B (de) *	1954-06-02	1957-12-10	Oesterr Alpine Montan	Stahl für Bewehrungszwecke im Bauwesen
CH507373A (de) *	1968-01-31	1971-05-15	Mitsubishi Heavy Ind Ltd	Verfahren zur Herstellung eines hochzugfesten schweissbaren Stahls
FR1566594A (fr) *	1968-03-22	1969-05-09
DE2649019B2 (de) *	1976-06-14	1979-10-25	Nippon Steel Corp., Tokio	Verfahren zum Herstellen nahtloser Rohre
EP0092629A1 (fr) *	1982-04-22	1983-11-02	Ugine Savoie	Procédé de fabrication de barres et de tubes en aciers à hautes caractéristiques mécaniques
GB2137539A (en) *	1983-03-28	1984-10-10	Mannesmann Ag	Manufacturing seamless steel pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0526330A1 (fr) *	1991-07-30	1993-02-03	Ascometal	Procédé de fabrication d'un tube en acier à paroi mince, acier pour la réalisation de ce tube et tube pour cadre de cycle obtenu
FR2679924A1 (fr) *	1991-07-30	1993-02-05	Ascometal Sa	Procede de fabrication d'un tube en acier a paroi mince, acier pour la realisation de ce tube et tube pour cadre de cycle obtenu.

Also Published As

Publication number	Publication date
JPH02115318A (ja)	1990-04-27
DE3832014C2 (de)	1994-11-24
EP0370588B1 (fr)	1993-05-26
US5019180A (en)	1991-05-28
DE58904493D1 (de)	1993-07-01
ATE89869T1 (de)	1993-06-15
DE3832014A1 (de)	1990-03-22

Legal Events

Date	Code	Title	Description
1990-04-13	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1990-05-30	17P	Request for examination filed	Effective date: 19900327
1990-05-30	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT DE ES FR GB IT SE
1992-09-02	17Q	First examination report despatched	Effective date: 19920722
1993-04-08	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1993-05-26	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT DE ES FR GB IT SE
1993-05-26	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19930526 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19930526
1993-05-26	REF	Corresponds to:	Ref document number: 89869 Country of ref document: AT Date of ref document: 19930615 Kind code of ref document: T
1993-05-27	ITF	It: translation for a ep patent filed
1993-06-04	ET	Fr: translation filed
1993-07-01	REF	Corresponds to:	Ref document number: 58904493 Country of ref document: DE Date of ref document: 19930701
1993-09-07	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: AT Effective date: 19930907
1993-09-15	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19930812
1994-03-04	PLBI	Opposition filed	Free format text: ORIGINAL CODE: 0009260
1994-04-27	26	Opposition filed	Opponent name: BENTELER AG Effective date: 19940224
1995-07-11	PLBM	Termination of opposition procedure: date of legal effect published	Free format text: ORIGINAL CODE: 0009276
1995-07-11	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: OPPOSITION PROCEDURE CLOSED
1995-08-30	27C	Opposition proceedings terminated	Effective date: 19950414
1996-08-16	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19960816 Year of fee payment: 8
1996-08-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19960827 Year of fee payment: 8
1997-09-07	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19970907
1997-09-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19970930
1997-10-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19971013 Year of fee payment: 9
1998-04-29	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19970907
1998-07-03	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
1999-07-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990701
2005-09-07	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050907

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