EP0841409A1 - Patinierbarer Stahl mit hoher Elastizitätsgrenze, insbesondere für metallische Behälter zur Aufnahme einer unter Druck stehenden Fluides - Google Patents

Patinierbarer Stahl mit hoher Elastizitätsgrenze, insbesondere für metallische Behälter zur Aufnahme einer unter Druck stehenden Fluides Download PDF

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Publication number
EP0841409A1
EP0841409A1 EP97440105A EP97440105A EP0841409A1 EP 0841409 A1 EP0841409 A1 EP 0841409A1 EP 97440105 A EP97440105 A EP 97440105A EP 97440105 A EP97440105 A EP 97440105A EP 0841409 A1 EP0841409 A1 EP 0841409A1
Authority
EP
European Patent Office
Prior art keywords
steel
joules
tanks
high elasticity
micrometers
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.)
Withdrawn
Application number
EP97440105A
Other languages
English (en)
French (fr)
Inventor
Guy Halgand
Jean Wendling
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.)
Gaz Liquefies Industrie Gli SA
Original Assignee
Gaz Liquefies Industrie Gli SA
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 Gaz Liquefies Industrie Gli SA filed Critical Gaz Liquefies Industrie Gli SA
Publication of EP0841409A1 publication Critical patent/EP0841409A1/de
Withdrawn legal-status Critical Current

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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum

Definitions

  • the invention relates to a steel grade with a high elasticity limit which can be skated, more particularly for the design of metal tanks intended to contain a fluid under pressure, in particular gas tanks.
  • these tanks comprise a body of generally cylindrical shape provided with a cover and a substantially semi-elliptical bottom.
  • a tank is designed, essentially, in two or three parts.
  • two half-shells are made integral by welding to each other, substantially in the horizontal median plane of the tank.
  • this cover and this bottom take a shape substantially similar to a half-shell insofar as they both comprise a part of semi-elliptical concave shape which is extended, at the periphery, by a cylindrical neck of higher height. or less important.
  • these parts are made by stamping a sheet which is, as indicated above, in traditional steel, knowing that this stamping is carried out in a single pass at during which said sheet is held using a clamp.
  • thermosetting coating often consisting of a mixture of zinc powder and epoxy powder, the application of which is effected by electrostatic effect. In fact this requires a new passage of the tank in an oven where the supply of calories necessary for the polymerization of the coating takes place.
  • cathodic type protection to prevent these tanks against corrosion.
  • such protection requires in all cases the application of a coating, in particular based on epoxy, on these tanks.
  • a zinc or magnesium anode is maintained on a tank previously coated with an anti-corrosion paint.
  • the present invention has set itself the objective of defining the characteristics of a steel which, on the one hand, has a high yield strength and, therefore, is able to avoid heat treatment operations , of the annealed type, following its deformation by stamping.
  • this steel is intended to be patinable, that is to say that it results in the formation of a surface layer of protective oxide, called a patina, capable of imparting to the reservoir a resistance to atmospheric corrosion which is much higher. to that of conventional structural steels.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Paints Or Removers (AREA)
EP97440105A 1996-11-12 1997-11-12 Patinierbarer Stahl mit hoher Elastizitätsgrenze, insbesondere für metallische Behälter zur Aufnahme einer unter Druck stehenden Fluides Withdrawn EP0841409A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9613919A FR2755701A1 (fr) 1996-11-12 1996-11-12 Nuance d'acier a haute limite d'elasticite patinable notamment pour reservoirs metalliques destines a contenir un fluide sous pression
FR9613919 1996-11-12

Publications (1)

Publication Number Publication Date
EP0841409A1 true EP0841409A1 (de) 1998-05-13

Family

ID=9497637

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97440105A Withdrawn EP0841409A1 (de) 1996-11-12 1997-11-12 Patinierbarer Stahl mit hoher Elastizitätsgrenze, insbesondere für metallische Behälter zur Aufnahme einer unter Druck stehenden Fluides

Country Status (2)

Country Link
EP (1) EP0841409A1 (de)
FR (1) FR2755701A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02133518A (ja) * 1988-11-14 1990-05-22 Sumitomo Metal Ind Ltd 低温靭性に優れた高張力鋼材の製造法
JPH06228708A (ja) * 1993-02-04 1994-08-16 Sumitomo Metal Ind Ltd 溶接性の良好な高強度熱延鋼板及びその製法
JPH07109520A (ja) * 1993-10-06 1995-04-25 Nippon Steel Corp 低温靭性の優れた耐ｃｏ２腐食性耐サワー鋼板の製造法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02133518A (ja) * 1988-11-14 1990-05-22 Sumitomo Metal Ind Ltd 低温靭性に優れた高張力鋼材の製造法
JPH06228708A (ja) * 1993-02-04 1994-08-16 Sumitomo Metal Ind Ltd 溶接性の良好な高強度熱延鋼板及びその製法
JPH07109520A (ja) * 1993-10-06 1995-04-25 Nippon Steel Corp 低温靭性の優れた耐ｃｏ２腐食性耐サワー鋼板の製造法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 363 (C - 746) 7 August 1990 (1990-08-07) *
PATENT ABSTRACTS OF JAPAN vol. 18, no. 604 (C - 1275) 17 November 1994 (1994-11-17) *
PATENT ABSTRACTS OF JAPAN vol. 95, no. 007 31 August 1995 (1995-08-31) *

Also Published As

Publication number Publication date
FR2755701A1 (fr) 1998-05-15

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