MX9701871A - Manufacturing procedure of a ferritic stainless steel presenting an improved corrosion-strength, and specially inter-granular and pitting-corrosion-strength. - Google Patents

Manufacturing procedure of a ferritic stainless steel presenting an improved corrosion-strength, and specially inter-granular and pitting-corrosion-strength.

Info

Publication number
MX9701871A
MX9701871A MX9701871A MX9701871A MX9701871A MX 9701871 A MX9701871 A MX 9701871A MX 9701871 A MX9701871 A MX 9701871A MX 9701871 A MX9701871 A MX 9701871A MX 9701871 A MX9701871 A MX 9701871A
Authority
MX
Mexico
Prior art keywords
percent
strength
corrosion
degree
pitting
Prior art date
Application number
MX9701871A
Other languages
Spanish (es)
Other versions
MXPA97001871A (en
Inventor
Jean-Michel Hauser
Pascale Haudrechy
Original Assignee
Usinor
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
Priority claimed from FR9603258A external-priority patent/FR2746114B1/en
Application filed by Usinor filed Critical Usinor
Publication of MXPA97001871A publication Critical patent/MXPA97001871A/en
Publication of MX9701871A publication Critical patent/MX9701871A/en

Links

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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum

Abstract

The present invention refers to a manufacturing procedure of a ferritic stainless steel presenting an improved corrosion-strength, and specially inter-granular corrosion-strength and pitting-corrosion-strength. Steel manufactured in ingot-shape, comprising on its composition by weight: 18 percent < chromium < 27 percent, 1 percent < molybdenum < 3 percent, 1 percent < nickel < 3 percent, manganese < 1 percent, silicon < 1 percent, carbon < 0,030 percent, nitrogen < 0.030 percent, 0.075 < titanium < 0.20 percent, 0.20 percent< niobium < 0.50 percent; sulfur < 0.01 percent, phosphor < 0,1 percent; balance being iron and impurities resulting from fusion of material necessary for manufacturing; this is subjected, in a first stage, to cooling at a rate comprised between 400 degree C and 600 degree C/hour until a temperature of 900 degree C, afterwards, in a second stage, to fast cooling at a rate comprised between 1,200 degree C and 1,400 degree C/hour.
MX9701871A 1996-03-15 1997-03-12 Manufacturing procedure of a ferritic stainless steel presenting an improved corrosion-strength, and specially inter-granular and pitting-corrosion-strength. MX9701871A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9603258A FR2746114B1 (en) 1996-03-15 1996-03-15 PROCESS FOR PRODUCING FERRITIC STAINLESS STEEL HAVING IMPROVED CORROSION RESISTANCE, IN PARTICULAR INTERGRANULAR AND PITCH CORROSION RESISTANCE
FR9603258 1996-03-15

Publications (2)

Publication Number Publication Date
MXPA97001871A MXPA97001871A (en) 1998-04-01
MX9701871A true MX9701871A (en) 1998-04-30

Family

ID=9490209

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9701871A MX9701871A (en) 1996-03-15 1997-03-12 Manufacturing procedure of a ferritic stainless steel presenting an improved corrosion-strength, and specially inter-granular and pitting-corrosion-strength.

Country Status (5)

Country Link
CN (1) CN1068072C (en)
AU (1) AU718297B2 (en)
MX (1) MX9701871A (en)
TW (1) TW429270B (en)
ZA (1) ZA972218B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392189B (en) * 2011-11-16 2013-05-29 钢铁研究总院 High-Cr ferrite stainless steel and manufacturing method thereof
EP2910659B1 (en) 2012-10-22 2017-12-27 JFE Steel Corporation Ferrite stainless steel and manufacturing method therefor
KR101903182B1 (en) * 2016-12-23 2018-10-01 주식회사 포스코 Ferritic stainless steel having excellent strength and corrosion resistance to acid and method of manufacturing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1565419A (en) * 1976-04-27 1980-04-23 Crucible Inc Stainless steel welded articles

Also Published As

Publication number Publication date
AU718297B2 (en) 2000-04-13
CN1068072C (en) 2001-07-04
CN1162653A (en) 1997-10-22
TW429270B (en) 2001-04-11
ZA972218B (en) 1997-09-17
AU1508097A (en) 1997-09-18

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