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US20080302452A1 - Process for Manufacturing Cold-Formed Precision Steel Pipes - Google Patents

Process for Manufacturing Cold-Formed Precision Steel Pipes Download PDF

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Publication number
US20080302452A1
US20080302452A1 US12/067,756 US6775606A US2008302452A1 US 20080302452 A1 US20080302452 A1 US 20080302452A1 US 6775606 A US6775606 A US 6775606A US 2008302452 A1 US2008302452 A1 US 2008302452A1
Authority
US
United States
Prior art keywords
max
pipe blank
pipe
blank
pipes
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.)
Abandoned
Application number
US12/067,756
Other languages
English (en)
Inventor
Josef Siekmeyer
Wolfgang Mussmann
Lothar See
Sven Herzing
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.)
MANNESMANN PRAEZISROHR GmbH
MHP Mannesmann Prazisrohr GmbH
Original Assignee
MHP Mannesmann Prazisrohr GmbH
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 MHP Mannesmann Prazisrohr GmbH filed Critical MHP Mannesmann Prazisrohr GmbH
Assigned to MANNESMANN PRAEZISROHR GMBH reassignment MANNESMANN PRAEZISROHR GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HERZIG, SVEN, MUSSMANN, WOLFGANG, SEE, LOTHAR, SIEKMEYER, JOSEF
Publication of US20080302452A1 publication Critical patent/US20080302452A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C21D6/00—Heat treatment of ferrous 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

Definitions

  • the invention relates to a process for manufacturing cold-formed, in particular cold-drawn, precision steel pipes according to the preamble of claim 1 .
  • Pipes manufactured in this way are characterized in particular by narrow wall thicknesses and diameter tolerances.
  • Starting product may either be a seamlessly produced hot-rolled pipe blank or a pipe blank made from a hot strip by means of high frequency induction welding (HFI welding).
  • HFI welding high frequency induction welding
  • This pipe blank labeled also as hollow, is drawn in the following cold drawing process, which includes one or more passes, to the required final size (diameter, wall thickness) for the finished pipe.
  • Cold forming causes the material to solidify, i.e. yield point and strength thereof increase while elongation and toughness thereof become smaller at the same time.
  • Unalloyed quality steels up to E 355 as well as higher strength grades up to StE 690 are used as steel grades.
  • Hydraulic cylinders control movement patterns of many devices and machineries which are used, i.a., also outdoors at great temperature fluctuations.
  • the notch impact energy determined in the notch impact bending test for the finished pipe cannot be raised to the necessary level by the currently employed manufacturing process.
  • a process is applied in which the pipe blank is finish-drawn in one or more passes, wherein the pipe undergoes a heat treatment before finish-drawing, and the steel pipe has the following chemical composition (in %):
  • alloying elements are dependent on the required property profile, i.e. according to the desired mechanical properties, and have advantageously the following contents (in weight-%):
  • the heat treatment itself includes a classical hardening with subsequent tempering of the pipes. Austenitizing is carried out at temperatures of about 910-940° C. depending on the respective material, followed by a quenching process to form a hardening structure. Quenching may be executed using various quenching media, typically quenching is implemented by means of water using a water shower. When using air-hardening materials, cooling may be realized through exposure to static air.
  • Tempering treatment follows hardening and is carried out at temperatures of about 540-720° C. depending on the material.
  • the advantage of the proposed process is the realization of a very even homogenous microstructure with superior toughness by providing a heat treating step before the finishing pass, which microstructure is substantially maintained even after the finishing pass of the pipe.
  • Tests have shown that the values for the notch impact energy at ⁇ 20° C. and 50% shear fracture area in the DWT test lie for transverse test specimen at a superior 80 J and for longitudinal test specimen at 100 J.
  • a possible demand by customers for a final annealing in the form of a stress-free annealing after the finishing pass leads to an additional improvement of the notch impact energy values and thus toughness of the structural part.
  • the final annealing is carried out advantageously at a temperature range of 600-700° C. in dependence on the material, whereby care should be taken that the temperature should be precisely set in dependence on the material properties to be attained, like e.g. strength, elongation at fracture, and notch impact energy.
  • Test of pipes made in accordance with the process according to the invention have shown the elimination of the otherwise typically encountered ferritic-pearlitic microstructure of the construction steels with pronounced variations in the notch impact energy level in transverse as well as longitudinal test specimens in materials produced by the process according to the invention.
  • the structural parts made from the steel pipe StE 460 mod. in accordance with the invention have, compared to the steel pipe produced in a conventional manner, a sufficiently high proportion of ductile fracture behavior at temperatures of up to ⁇ 20° C., and thus have sufficient plastic deformation reserves to positively prevent the risk of a disintegration of the structural part into several parts.
  • the material concept according to the invention thus allows the operation of hydraulic cylinders even at the temperature range of up to ⁇ 20° C.

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 Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Metal Extraction Processes (AREA)
US12/067,756 2005-09-21 2006-08-18 Process for Manufacturing Cold-Formed Precision Steel Pipes Abandoned US20080302452A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005046459A DE102005046459B4 (de) 2005-09-21 2005-09-21 Verfahren zur Herstellung von kaltgefertigten Präzisionsstahlrohren
DE102005046459.9 2005-09-21
PCT/DE2006/001457 WO2007033635A1 (de) 2005-09-21 2006-08-18 Verfahren zur herstellung von kaltgefertigten präzisionsstahlrohren

Publications (1)

Publication Number Publication Date
US20080302452A1 true US20080302452A1 (en) 2008-12-11

Family

ID=37420849

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/067,756 Abandoned US20080302452A1 (en) 2005-09-21 2006-08-18 Process for Manufacturing Cold-Formed Precision Steel Pipes

Country Status (12)

Country Link
US (1) US20080302452A1 (de)
EP (1) EP1926837B1 (de)
JP (1) JP5679632B2 (de)
KR (1) KR20080063313A (de)
CN (1) CN101268203A (de)
BR (1) BRPI0616367A8 (de)
CA (1) CA2622410C (de)
DE (1) DE102005046459B4 (de)
ES (1) ES2470674T3 (de)
PL (1) PL1926837T3 (de)
UA (1) UA88573C2 (de)
WO (1) WO2007033635A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2939449A1 (fr) * 2008-12-09 2010-06-11 Vallourec Mannesmann Oil & Gas Acier faiblement allie a limite d'elasticite elevee et haute resistance a la fissuration sous contrainte par les sulfures.
US10954578B2 (en) * 2014-10-30 2021-03-23 Jfe Steel Corporation High-strength steel sheet and method for manufacturing same
US11447841B2 (en) 2016-11-16 2022-09-20 Jfe Steel Corporation High-strength steel sheet and method for producing same

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2009000219A (es) * 2006-06-29 2009-03-20 Tenaris Connections Ag Tubo sin costura de acero de precision con tenacidad isotropica mejorada a baja temperatura para cilindros hidraulicos y procesos para obtenerlos.
DE102008010749A1 (de) 2008-02-20 2009-09-24 V & M Deutschland Gmbh Stahllegierung für einen niedrig legierten Stahl zur Herstellung hochfester nahtloser Stahlrohre
FR2942808B1 (fr) * 2009-03-03 2011-02-18 Vallourec Mannesmann Oil & Gas Acier faiblement allie a limite d'elasticite elevee et haute resistance a la fissuration sous contrainte par les sulfures.
CN102560283A (zh) * 2012-02-21 2012-07-11 张芝莲 一种大口径无缝合金钢管
CN102553926A (zh) * 2012-02-21 2012-07-11 张芝莲 一种大口径无缝合金钢管的制造方法
CN102653816B (zh) * 2012-05-02 2014-05-14 江苏华程工业制管股份有限公司 一种液压缸筒用合金钢管的制备工艺
CN103409602A (zh) * 2013-08-09 2013-11-27 江苏华程工业制管股份有限公司 微脱碳高强度高耐磨缸套用合金钢管的制造方法
CN105081698A (zh) * 2015-09-01 2015-11-25 无锡贺邦金属制品有限公司 一种钢管的加工方法
CN105385948B (zh) * 2015-11-06 2018-06-29 天津钢管集团股份有限公司 自升钻井平台用屈服强度大于690MPa无缝管的制造方法
CN105463311B (zh) * 2015-12-14 2017-11-07 徐州徐工液压件有限公司 一种高精度冷拔管的制作方法
CN110616366B (zh) * 2018-06-20 2021-07-16 宝山钢铁股份有限公司 一种125ksi钢级抗硫油井管及其制造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173495B1 (en) * 1999-05-12 2001-01-16 Trw Inc. High strength low carbon air bag quality seamless tubing
US6878219B2 (en) * 2001-03-29 2005-04-12 Sumitomo Metal Industries, Ltd. High strength steel pipe for an air bag and a process for its manufacture

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571740B1 (fr) * 1984-10-12 1988-05-06 Decazeville Expl Siderurgie Acier au manganese pour, notamment, des tubes de cycles
JPS61213344A (ja) * 1985-03-18 1986-09-22 Kawasaki Steel Corp 高靭性シ−ムレス鋼管
JPS62263924A (ja) * 1986-05-07 1987-11-16 Sumitomo Metal Ind Ltd 強靭鋼管の製造方法
JP3318467B2 (ja) * 1995-05-29 2002-08-26 住友金属工業株式会社 加工性に優れた高強度高靭性鋼管の製造方法
JPH10140250A (ja) * 1996-11-12 1998-05-26 Sumitomo Metal Ind Ltd 高強度高靭性エアーバッグ用鋼管の製造方法
JP2001049343A (ja) * 1999-08-10 2001-02-20 Sumitomo Metal Ind Ltd 高靭性エアバッグ用電縫鋼管の製造方法
DE19942641A1 (de) * 1999-08-30 2001-03-22 Mannesmann Ag Verwendung einer Stahllegierung zur Herstellung hochfester nahtloser Stahlrohre
US20020033591A1 (en) * 2000-09-01 2002-03-21 Trw Inc. Method of producing a cold temperature high toughness structural steel tubing
WO2002103070A1 (fr) * 2001-06-14 2002-12-27 Kawasaki Steel Corporation Procede de production de tuyaux en acier presentant une tenacite elevee
JP4186566B2 (ja) * 2002-09-19 2008-11-26 住友金属工業株式会社 低温靱性に優れたエアバッグ用鋼管の製造方法
US20050076975A1 (en) * 2003-10-10 2005-04-14 Tenaris Connections A.G. Low carbon alloy steel tube having ultra high strength and excellent toughness at low temperature and method of manufacturing the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173495B1 (en) * 1999-05-12 2001-01-16 Trw Inc. High strength low carbon air bag quality seamless tubing
US6878219B2 (en) * 2001-03-29 2005-04-12 Sumitomo Metal Industries, Ltd. High strength steel pipe for an air bag and a process for its manufacture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2939449A1 (fr) * 2008-12-09 2010-06-11 Vallourec Mannesmann Oil & Gas Acier faiblement allie a limite d'elasticite elevee et haute resistance a la fissuration sous contrainte par les sulfures.
WO2010066584A1 (en) * 2008-12-09 2010-06-17 Vallourec Mannesmann Oil & Gas France Low alloy steel with a high yield strength and high sulphide stress cracking resistance
US10640857B2 (en) 2008-12-09 2020-05-05 Vallourec Oil & Gas France Low alloy steel with a high yield strength and high sulphide stress cracking resistance
US10954578B2 (en) * 2014-10-30 2021-03-23 Jfe Steel Corporation High-strength steel sheet and method for manufacturing same
US11447841B2 (en) 2016-11-16 2022-09-20 Jfe Steel Corporation High-strength steel sheet and method for producing same

Also Published As

Publication number Publication date
JP2009509040A (ja) 2009-03-05
UA88573C2 (ru) 2009-10-26
ES2470674T3 (es) 2014-06-24
EP1926837B1 (de) 2014-03-12
DE102005046459A1 (de) 2007-04-12
BRPI0616367B1 (pt) 2017-11-28
KR20080063313A (ko) 2008-07-03
DE102005046459B4 (de) 2013-11-28
WO2007033635A1 (de) 2007-03-29
EP1926837A1 (de) 2008-06-04
BRPI0616367A8 (pt) 2018-05-08
BRPI0616367A2 (pt) 2011-06-14
CA2622410C (en) 2015-05-05
PL1926837T3 (pl) 2014-09-30
CN101268203A (zh) 2008-09-17
CA2622410A1 (en) 2007-03-29
JP5679632B2 (ja) 2015-03-04

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MANNESMANN PRAEZISROHR GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SIEKMEYER, JOSEF;MUSSMANN, WOLFGANG;SEE, LOTHAR;AND OTHERS;REEL/FRAME:021213/0368

Effective date: 20080411

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION