EP1040206A1 - Acier de construction inoxydable et son procede de production - Google Patents

Acier de construction inoxydable et son procede de production

Info

Publication number
EP1040206A1
EP1040206A1 EP98966508A EP98966508A EP1040206A1 EP 1040206 A1 EP1040206 A1 EP 1040206A1 EP 98966508 A EP98966508 A EP 98966508A EP 98966508 A EP98966508 A EP 98966508A EP 1040206 A1 EP1040206 A1 EP 1040206A1
Authority
EP
European Patent Office
Prior art keywords
steels
stainless
martensitic
rust
resistant
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.)
Granted
Application number
EP98966508A
Other languages
German (de)
English (en)
Other versions
EP1040206B1 (fr
Inventor
Klaus Peter Erkel
Martin Erkel
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.)
VON MOOS STAHL AG
Original Assignee
SKET Walzwerkstechnik 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 SKET Walzwerkstechnik GmbH filed Critical SKET Walzwerkstechnik GmbH
Publication of EP1040206A1 publication Critical patent/EP1040206A1/fr
Application granted granted Critical
Publication of EP1040206B1 publication Critical patent/EP1040206B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
    • 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
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/08—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Definitions

  • the invention relates to the production of stainless structural steels which can be used in a wide range of applications for sheets, strips, tubes, rods, etc.
  • a preferred field of application is the production of smooth or ribbed and also weldable reinforcing steel, i.e. of stainless reinforcement steels for reinforced concrete construction.
  • Such stainless structural steels belong to the martensitic or ferritic-martensitic class and are given their intended properties by thermomechanical treatment.
  • the intended properties of the rustproof structural steels are achieved once by thermomechanical treatment from the rolling heat, i.e. in the rolling process, and not achieved by annealing and subsequent cold forming.
  • the intended properties according to DIN 488 Tl can be achieved by hot rolling with subsequent tempering.
  • the annealing and cold forming can be omitted and stainless structural or reinforcing steel can be produced more cost-effectively.
  • the cooling of the stainless reinforcing steel takes place after rolling from the
  • Cooling pipes in water This creates a fine-grained soft martensitic or ferritic-martensitic structure of high strength and toughness, so that the requirements of the previous one
  • a preferred composition of the reinforcing steel produced according to the invention is given when using material 1.4003 according to DIN EN 10088.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Heat Treatment Of Articles (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP98966508A 1997-12-12 1998-12-07 Procede de production d'un acier de construction ferritique ou ferritique-martensitique inoxydable Expired - Lifetime EP1040206B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19755409A DE19755409A1 (de) 1997-12-12 1997-12-12 Nichtrostender Baustahl und Verfahren zu seiner Herstellung
DE19755409 1997-12-12
PCT/DE1998/003583 WO1999031283A1 (fr) 1997-12-12 1998-12-07 Acier de construction inoxydable et son procede de production

Publications (2)

Publication Number Publication Date
EP1040206A1 true EP1040206A1 (fr) 2000-10-04
EP1040206B1 EP1040206B1 (fr) 2002-03-06

Family

ID=7851770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98966508A Expired - Lifetime EP1040206B1 (fr) 1997-12-12 1998-12-07 Procede de production d'un acier de construction ferritique ou ferritique-martensitique inoxydable

Country Status (8)

Country Link
EP (1) EP1040206B1 (fr)
CN (1) CN1281514A (fr)
AT (1) ATE214107T1 (fr)
BR (1) BR9813553A (fr)
DE (2) DE19755409A1 (fr)
DK (1) DK1040206T3 (fr)
ES (1) ES2172262T3 (fr)
WO (1) WO1999031283A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002038242A (ja) * 2000-07-27 2002-02-06 Kawasaki Steel Corp 二次加工性に優れた自動車構造部材用ステンレス鋼管
DE102006060994B4 (de) * 2006-12-20 2010-02-11 Zf Friedrichshafen Ag Kugelzapfen und -hülsen aus nichtrostendem Stahl
CN102505805A (zh) * 2011-11-22 2012-06-20 江苏国建新材料股份有限公司 一种混合配筋的高强钢筋混凝土构件
CN107686948B (zh) * 2017-03-30 2018-09-25 山西同航特钢有限公司 一种软马氏体不锈钢阀箱锻件制造工艺
EP3640430B8 (fr) 2018-10-16 2021-10-13 Steeltec AG Tige filetée destinée à l'incorporation dans un liant contenant du ciment, unité d'ancrage correspondante ainsi que procédé de fabrication de tige filetée

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360391A (en) * 1981-05-22 1982-11-23 Nisshin Steel Co., Ltd. Process for production of coil of hot rolled strip of austenitic stainless steel
JPS59153832A (ja) * 1983-02-19 1984-09-01 Nippon Stainless Steel Co Ltd マルテンサイトステンレス鋼の熱延鋼帯の熱処理方法
US4544420A (en) * 1983-03-01 1985-10-01 Electralloy Corporation Wrought alloy body and method
FR2567151B1 (fr) * 1984-07-04 1986-11-21 Ugine Aciers Procede de fabrication de barres ou de fil machine en acier inoxydable martensitique et produits correspondants
US4608099A (en) * 1984-10-10 1986-08-26 Amax Inc. General purpose maintenance-free constructional steel of superior processability
JPS61272317A (ja) * 1985-05-29 1986-12-02 Nippon Kokan Kk <Nkk> 耐食性に優れた常温および高温域での高強度オ−ステナイト・ステンレス鋼材の製造方法
US4769213A (en) * 1986-08-21 1988-09-06 Crucible Materials Corporation Age-hardenable stainless steel having improved machinability
DE3787961T2 (de) * 1986-12-30 1994-05-19 Nisshin Steel Co., Ltd., Tokio/Tokyo Verfahren zur Herstellung von rostfreien Chromstahlband mit Zweiphasen-Gefüge mit hoher Festigkeit und hoher Dehnung und mit niedriger Anisotropie.
JPS63293143A (ja) * 1987-05-25 1988-11-30 Nippon Kinzoku Kogyo Kk 深冷処理硬化型マルテンサイト系ステンレス鋼
JP2658210B2 (ja) * 1988-07-07 1997-09-30 株式会社クボタ マルテンサイト系ステンレス鋼の熱処理方法
US5089067A (en) * 1991-01-24 1992-02-18 Armco Inc. Martensitic stainless steel
JP2537118B2 (ja) * 1992-10-07 1996-09-25 新日本製鐵株式会社 耐応力腐食割れ性超高張力鋼の製造方法
DE4244176A1 (de) * 1992-12-24 1994-06-30 Schloemann Siemag Ag Anlage zum Walzen von Draht
JPH06220545A (ja) * 1993-01-28 1994-08-09 Nippon Steel Corp 靱性の優れたＣｒ系ステンレス鋼薄帯の製造方法
US5496421A (en) * 1993-10-22 1996-03-05 Nkk Corporation High-strength martensitic stainless steel and method for making the same
JPH07138704A (ja) * 1993-11-12 1995-05-30 Nisshin Steel Co Ltd 高強度高延性複相組織ステンレス鋼およびその製造方法
KR100240741B1 (ko) * 1994-01-26 2000-01-15 에모또 간지 내부식성이 우수한 스테인레스강판의 제조방법
JP3116156B2 (ja) * 1994-06-16 2000-12-11 新日本製鐵株式会社 耐食性および溶接性に優れた鋼管の製造方法
WO1996002678A1 (fr) * 1994-07-18 1996-02-01 Nippon Steel Corporation Procede pour produire un acier et des tubes en acier presentant une excellente resistance a la corrosion et une excellente soudabilite
US5716465A (en) * 1994-09-30 1998-02-10 Nippon Steel Corporation High-corrosion-resistant martensitic stainless steel having excellent weldability and process for producing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9931283A1 *

Also Published As

Publication number Publication date
ES2172262T3 (es) 2002-09-16
DK1040206T3 (da) 2002-06-17
EP1040206B1 (fr) 2002-03-06
DE19755409A1 (de) 1999-06-17
BR9813553A (pt) 2000-10-03
ATE214107T1 (de) 2002-03-15
DE59803308D1 (de) 2002-04-11
WO1999031283A1 (fr) 1999-06-24
CN1281514A (zh) 2001-01-24

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