EP0954617B1 - Verfahren zur herstellung nahtloser leitungsrohre mit stabiler streckgrenze bei erhöhten einsatztemperaturen - Google Patents
Verfahren zur herstellung nahtloser leitungsrohre mit stabiler streckgrenze bei erhöhten einsatztemperaturen Download PDFInfo
- Publication number
- EP0954617B1 EP0954617B1 EP97953639A EP97953639A EP0954617B1 EP 0954617 B1 EP0954617 B1 EP 0954617B1 EP 97953639 A EP97953639 A EP 97953639A EP 97953639 A EP97953639 A EP 97953639A EP 0954617 B1 EP0954617 B1 EP 0954617B1
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- EP
- European Patent Office
- Prior art keywords
- max
- steel
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- content
- established
- 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.)
- Expired - Lifetime
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- UMRZSTCPUPJPOJ-UHFFFAOYSA-N C(C1)C2CC1CC2 Chemical compound C(C1)C2CC1CC2 UMRZSTCPUPJPOJ-UHFFFAOYSA-N 0.000 description 1
- 0 CCC(CN)*C Chemical compound CCC(CN)*C 0.000 description 1
Images
Classifications
-
- 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
- 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
-
- 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
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
Definitions
- the invention relates to a method for producing seamless conduits in Quality level range X 52 to X 90.
- the hydrocarbons e.g. natural gas
- the materials used for conduit in such conditions are not only sufficient weldability and a have some corrosion resistance, but must also have one have comparatively good yield strength stability.
- a Temperature of 160 ° C the yield point drop compared to the yield point at Room temperature as low as possible.
- Tungsten is generally used relatively rarely as an alloying element. It finds regular use as a strong carbide former for the production of cold, Hot and high speed steels. It increases their heat resistance, Temper resistance and especially wear resistance at high Temperatures. In its mode of action, tungsten is similar to molybdenum, so that it can replace molybdenum in a ratio of 2: 1.
- Tungsten has previously been used as an alloying element for conduit steels completely unknown.
- the object of the invention is to provide a method for producing seamless conduits to propose a level of quality in the area through remuneration treatment X 52 to X 90 can be set safely and up to operating temperatures of 200 ° C good yield strength stability with essentially constant stress-strain characteristics can be guaranteed.
- this object is achieved by hot rolling a tube material made of a steel with the following composition (% by weight): C. 0.06-0.18% Si Max. 0.40% Mn 0.80 - 1.40% P Max. 0.025% S Max. 0.010% Al 0.010-0.060% Mon Max. 0.50% V Max. 0.10% Nb Max. 0.10% N Max. 0.015% Cu, Cr, Ni each max. 0.15% Ti Max. 0.050% W > 0.30-1.00% Balance iron and usual impurities.
- the tubes After hot-rolling and cooling the tubes, they are reheated to a temperature above AC 3 and quenched at a cooling rate of at least 15 ° C / s to below 100 ° C. Finally, the tubes are tempered in the temperature range of 500 to 700 ° C, depending on the desired quality level.
- the Add steel alloy up to 0.050% Ti.
- the tungsten content lies expediently in the range from 0.35 to 0.70%, particularly preferably in the range from 0.35 to 0.40%. It is recommended to reduce the vanadium content to at least 0.04% adjust.
- a molybdenum content in the range of 0.05 to 0.40%, preferably in The range from 0.10 to 0.25% has been particularly great at the higher grades than proven advantageous.
- the steel alloy to be used for hot rolling according to the invention may be without Impairment of their properties may include other accompanying substances, such as them are found particularly in the production of electrical steel.
- Examples of this Accompanying substances are copper, chromium and nickel.
- the salary limits of this Accompanying substances should be limited to a maximum of 0.15%.
- a hot-rolled according to the invention and after reheating Quenched conduit can be remunerated to any grade in the quality level range from X 52 to X 90.
- the toughness properties are improved by higher tempering temperatures.
- On Line pipe manufactured according to the invention has at least up to one Operating temperature of 200 ° C a stable yield point, i.e. that the The yield point drop is very low ( ⁇ 10%).
- the stress-strain characteristic is essentially continuous.
- the weldability that is important for conduits is guaranteed.
- the carbon equivalent according to IIW can be set to relatively low values to adjust.
- the molybdenum content can be limited to very small values or even be zero. Since tungsten is cheaper than molybdenum, they are Manufacturing costs of the alloy to be used according to the invention are lower.
- the alloying of tungsten which is crucial for the invention, has one for the Expert surprisingly brought positive effect. This is supposed to be based on a Embodiment and a comparative example illustrated below become.
- the stress-strain characteristic of samples of the two examples is 1 (invention) and 2 (comparative case) have been graphically represented.
- the carbon equivalent values for the comparative steel were 0.44 and 0.24, respectively.
- the alloy of the steel used according to the invention differs from the comparison alloy essentially only in that the molybdenum content is 0.15% lower and an additional 0.35% tungsten content is added instead.
- the steel used according to the invention when examining its strength properties at a test temperature of 160 ° C., showed a drop in yield strength of only about 5%. As can be seen from the stress-strain characteristic in FIG. 1, the stress-strain curves surprisingly practically completely coincide at room temperature (RT) and at the test temperature of 160 ° C. from a plastic strain of approx.
- the tempering level can be lowered by higher tempering temperatures and increased by lower temperatures.
- alloys can be selected which can represent the quality level range from X 52 to X 90 through appropriate remuneration treatment.
- the examined steel sample according to the invention showed a notched impact value of 92 J / cm 2 with regard to the notched impact strength at a test temperature of -30 ° C (sample position: sheet center, transverse), which is to be regarded as extraordinarily good for the quality class X 85.
- the weldability of the steel according to the invention can be classified as completely satisfactory, and there is no discernible negative influence of the alloyed tungsten.
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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)
- Heat Treatment Of Articles (AREA)
Description
C | 0,06-0,18% |
Si | max. 0,40 % |
Mn | 0,80 - 1,40 % |
P | max. 0,025% |
S | max. 0,010 % |
Al | 0,010-0,060 % |
Mo | max. 0,50 % |
V | max. 0,10 % |
Nb | max. 0,10 % |
N | max. 0,015 % |
Cu, Cr, Ni | je max. 0,15 % |
Ti | Max. 0,050 % |
W | >0,30-1,00 % |
Rest Eisen und übliche Verunreinigungen. |
Element | Erfindung | Vergleichsfall |
C | 0,13 % | 0,13% |
Mn | 1,30 % | 1,25 % |
Mo | 0,15 % | 0,30 % |
V | 0,05 % | 0,05 % |
Cr | 0,10 % | 0,10 % |
W | 0,35 % | - |
Ti | 0,018 % | 0,018 % |
N | 70 ppm | 70 ppm |
Claims (5)
- Verfahren zur Herstellung nahtloser Leitungsrohre im Gütestufenbereich X 52 bis X 90, mit Streckgrenzenstabilität bis zu einer Einsatztemperatur von 200 °C und mit im wesentlichen stetiger Spannungs-Dehnungs-Charakteristik durch Warmwalzen eines Röhrenvormateriäls aus einem Stahl, der folgende Legierungselemente (Gew.-%) enthält:
C 0,06-0,18% Si max. 0,40 % Mn 0,80 - 1,40 % P max. 0,025% S max. 0,010 % Al 0,010 - 0,060 % Mo max. 0,50 % V max. 0,10 % Nb max. 0,10 % N max. 0,015 % Cu, Cr, Ni je max. 0,15 % Ti max. 0,050 % W >0,30 - 1,00 % Rest Eisen und übliche Verunreinigungen, - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß dem einzusetzenden Stahl zur Abbindung von Stickstoff bis zu 0,050 % Ti zugesetzt ist. - Verfahren nach einem der Ansprüche 1 bis 2,
dadurch gekennzeichnet,
daß der W-Gehalt des einzusetzenden Stahls im Bereich 0,35 bis 0,70 %. insbesondere im Bereich 0,35 bis 0,40 % eingestellt ist, - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß der Mo-Gehalt des einzusetzenden Stahls im Bereich 0,05 bis 0,40 %, insbesondere im Bereich 0,10 bis 0,25 % eingestellt ist. - Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß der V-Gehalt des einzusetzenden Stahls auf mindestens 0,04 % eingestellt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702823 | 1997-01-15 | ||
DE19702823 | 1997-01-15 | ||
PCT/DE1997/002943 WO1998031843A1 (de) | 1997-01-15 | 1997-12-12 | Verfahren zur herstellung nahtloser leitungsrohre mit stabiler streckgrenze bei erhöhten einsatztemperaturen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0954617A1 EP0954617A1 (de) | 1999-11-10 |
EP0954617B1 true EP0954617B1 (de) | 2001-08-08 |
Family
ID=7818451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97953639A Expired - Lifetime EP0954617B1 (de) | 1997-01-15 | 1997-12-12 | Verfahren zur herstellung nahtloser leitungsrohre mit stabiler streckgrenze bei erhöhten einsatztemperaturen |
Country Status (8)
Country | Link |
---|---|
US (1) | US20020011284A1 (de) |
EP (1) | EP0954617B1 (de) |
JP (1) | JP2001508131A (de) |
AU (1) | AU5748298A (de) |
DE (1) | DE59704264D1 (de) |
ES (1) | ES2159155T3 (de) |
NO (1) | NO993260D0 (de) |
WO (1) | WO1998031843A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112063918A (zh) * | 2020-07-29 | 2020-12-11 | 江阴兴澄特种钢铁有限公司 | 一种低温高韧性x90钢级热煨弯管用管线钢板及其制造方法 |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19942641A1 (de) * | 1999-08-30 | 2001-03-22 | Mannesmann Ag | Verwendung einer Stahllegierung zur Herstellung hochfester nahtloser Stahlrohre |
EP1627931B1 (de) * | 2003-04-25 | 2017-05-31 | Tubos De Acero De Mexico, S.A. | Nahtloses stahlrohr, das zur verwendung als führungsrohr vorgesehen ist, und herstellungsverfahren dafür |
MXPA05008339A (es) * | 2005-08-04 | 2007-02-05 | Tenaris Connections Ag | Acero de alta resistencia para tubos de acero soldables y sin costura. |
WO2008000300A1 (en) * | 2006-06-29 | 2008-01-03 | Tenaris Connections Ag | Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same |
MX2007004600A (es) * | 2007-04-17 | 2008-12-01 | Tubos De Acero De Mexico S A | Un tubo sin costura para la aplicación como secciones verticales de work-over. |
US7862667B2 (en) | 2007-07-06 | 2011-01-04 | Tenaris Connections Limited | Steels for sour service environments |
EP2238272B1 (de) * | 2007-11-19 | 2019-03-06 | Tenaris Connections B.V. | Hochfester bainitischer stahl für octg-anwendungen |
US8221562B2 (en) * | 2008-11-25 | 2012-07-17 | Maverick Tube, Llc | Compact strip or thin slab processing of boron/titanium steels |
EP2325435B2 (de) | 2009-11-24 | 2020-09-30 | Tenaris Connections B.V. | Verschraubung für [ultrahoch] abgedichteten internen und externen Druck |
US9163296B2 (en) | 2011-01-25 | 2015-10-20 | Tenaris Coiled Tubes, Llc | Coiled tube with varying mechanical properties for superior performance and methods to produce the same by a continuous heat treatment |
IT1403688B1 (it) | 2011-02-07 | 2013-10-31 | Dalmine Spa | Tubi in acciaio con pareti spesse con eccellente durezza a bassa temperatura e resistenza alla corrosione sotto tensione da solfuri. |
IT1403689B1 (it) | 2011-02-07 | 2013-10-31 | Dalmine Spa | Tubi in acciaio ad alta resistenza con eccellente durezza a bassa temperatura e resistenza alla corrosione sotto tensioni da solfuri. |
US8636856B2 (en) | 2011-02-18 | 2014-01-28 | Siderca S.A.I.C. | High strength steel having good toughness |
US8414715B2 (en) | 2011-02-18 | 2013-04-09 | Siderca S.A.I.C. | Method of making ultra high strength steel having good toughness |
CN102127698A (zh) * | 2011-02-22 | 2011-07-20 | 中国石油天然气集团公司 | 一种x100钢级弯管和管件的制备方法 |
CN102161148B (zh) * | 2011-02-22 | 2014-06-04 | 中国石油天然气集团公司 | 一种x90钢级弯管和管件的制备方法 |
US9340847B2 (en) | 2012-04-10 | 2016-05-17 | Tenaris Connections Limited | Methods of manufacturing steel tubes for drilling rods with improved mechanical properties, and rods made by the same |
CN104903538B (zh) | 2013-01-11 | 2018-05-08 | 特纳瑞斯连接有限公司 | 抗磨损钻杆工具接头和相应的钻杆 |
US9187811B2 (en) | 2013-03-11 | 2015-11-17 | Tenaris Connections Limited | Low-carbon chromium steel having reduced vanadium and high corrosion resistance, and methods of manufacturing |
US9803256B2 (en) | 2013-03-14 | 2017-10-31 | Tenaris Coiled Tubes, Llc | High performance material for coiled tubing applications and the method of producing the same |
EP2789701A1 (de) | 2013-04-08 | 2014-10-15 | DALMINE S.p.A. | Hochfeste mittelwandige vergütete und nahtlose Stahlrohre und entsprechendes Verfahren zur Herstellung der Stahlrohre |
EP2789700A1 (de) | 2013-04-08 | 2014-10-15 | DALMINE S.p.A. | Dickwandige vergütete und nahtlose Stahlrohre und entsprechendes Verfahren zur Herstellung der Stahlrohre |
KR102197204B1 (ko) | 2013-06-25 | 2021-01-04 | 테나리스 커넥션즈 비.브이. | 고크롬 내열철강 |
US11124852B2 (en) | 2016-08-12 | 2021-09-21 | Tenaris Coiled Tubes, Llc | Method and system for manufacturing coiled tubing |
US10434554B2 (en) | 2017-01-17 | 2019-10-08 | Forum Us, Inc. | Method of manufacturing a coiled tubing string |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB400102A (en) * | 1932-04-21 | 1933-10-19 | Mannesmann Ag | Improvements in and relating to the manufacture of pressure welded containers for withstanding relatively high internal and external pressure |
CA1249121A (en) * | 1983-06-13 | 1989-01-24 | Tadaaki Taira | Method for manufacturing bent steel pipe excellent in strength and low-temperature toughness |
DE3832014C2 (de) * | 1988-09-16 | 1994-11-24 | Mannesmann Ag | Verfahren zur Herstellung hochfester nahtloser Stahlrohre |
DK0789785T3 (da) * | 1994-11-04 | 2002-11-25 | Babcock Hitachi Kk | Ferritisk varmebestandig ståltype med fremragende højtemperaturstyrke og fremgangsmåde til fremstilling heraf |
-
1997
- 1997-12-12 ES ES97953639T patent/ES2159155T3/es not_active Expired - Lifetime
- 1997-12-12 US US09/341,722 patent/US20020011284A1/en not_active Abandoned
- 1997-12-12 AU AU57482/98A patent/AU5748298A/en not_active Abandoned
- 1997-12-12 JP JP53328098A patent/JP2001508131A/ja active Pending
- 1997-12-12 EP EP97953639A patent/EP0954617B1/de not_active Expired - Lifetime
- 1997-12-12 DE DE59704264T patent/DE59704264D1/de not_active Expired - Fee Related
- 1997-12-12 WO PCT/DE1997/002943 patent/WO1998031843A1/de active IP Right Grant
-
1999
- 1999-06-30 NO NO993260A patent/NO993260D0/no not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112063918A (zh) * | 2020-07-29 | 2020-12-11 | 江阴兴澄特种钢铁有限公司 | 一种低温高韧性x90钢级热煨弯管用管线钢板及其制造方法 |
Also Published As
Publication number | Publication date |
---|---|
NO993260L (no) | 1999-06-30 |
US20020011284A1 (en) | 2002-01-31 |
NO993260D0 (no) | 1999-06-30 |
AU5748298A (en) | 1998-08-07 |
JP2001508131A (ja) | 2001-06-19 |
ES2159155T3 (es) | 2001-09-16 |
WO1998031843A1 (de) | 1998-07-23 |
EP0954617A1 (de) | 1999-11-10 |
DE59704264D1 (de) | 2001-09-13 |
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