WO2003056053B1 - Precipitation hardenable austenitic steel - Google Patents

Precipitation hardenable austenitic steel

Info

Publication number
WO2003056053B1
WO2003056053B1 PCT/SE2002/002300 SE0202300W WO03056053B1 WO 2003056053 B1 WO2003056053 B1 WO 2003056053B1 SE 0202300 W SE0202300 W SE 0202300W WO 03056053 B1 WO03056053 B1 WO 03056053B1
Authority
WO
WIPO (PCT)
Prior art keywords
product
manufactured
weight
precipitation hardenable
austenitic stainless
Prior art date
Application number
PCT/SE2002/002300
Other languages
French (fr)
Other versions
WO2003056053A1 (en
Inventor
Gustaf Zetterholm
Haakan Holmberg
Original Assignee
Sandvik Ab
Gustaf Zetterholm
Haakan Holmberg
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 Sandvik Ab, Gustaf Zetterholm, Haakan Holmberg filed Critical Sandvik Ab
Priority to EP02792137A priority Critical patent/EP1472383B1/en
Priority to BRPI0214816-1A priority patent/BR0214816B1/en
Priority to KR1020047008951A priority patent/KR100966068B1/en
Priority to US10/496,491 priority patent/US20050126661A1/en
Priority to DE60219693T priority patent/DE60219693T2/en
Priority to AU2002358375A priority patent/AU2002358375A1/en
Priority to JP2003556567A priority patent/JP4327601B2/en
Publication of WO2003056053A1 publication Critical patent/WO2003056053A1/en
Publication of WO2003056053B1 publication Critical patent/WO2003056053B1/en
Priority to US11/487,442 priority patent/US20070041863A1/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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper

Abstract

The present invention relates to a stainless steel alloy, more precisely a highstrength stainless, precipitation hardenable, austenitic, stainless alloy, containing a well adjusted amount of aluminium and a high silicon content and which has the following composition (in weight-%): C 0-0.07 Si 0.5-3.0 N 0-0.1 Cr 15.0-20.0 Ni 7.0-12.0 Al 0.25-1.5 Cu 0 ≤ Cu ≤ 4.0 Mn 0-3.0 Mo 0-2.0 Ti 0-1.0 and the balance Fe together with normally occuring impurities and additives and a product that is reduced by cold working, especially drawing, without intermediate heat treatment, the strength of which increases by final heat treatment at 300 °C to 500 °C by not less than 14 %, that shows a Md30-value of between -55 and -100, a loss of force that is smaller than 3.0 % at 1400 N during 24 h and which is very suitable for use in spring applications, such as springs of round wire and strip steel and in medical applications, such as surgical and dental instruments.

Claims

AMENDED CLAIMS[received by the International Bureau on 17 April 2003 (17.04.03); Claims 1 to 10 inserted; Original claims 8, 9, 12 cancelled (3 pages)]Claims
1. Product, manufactured from a high-strength austenitic stainless alloy, characterized in that it is precipitation hardenable and has the following composition (in weight-%):
C more than 0 to 0.07
Si 0.5-3.0
N >0-0.1
Cr 15.0-20.0
Ni 7.0-12.0
Al 0.25-1.5
Cu 0 < Cu < 4.0
Mn >0-3.0
Mo >0-2.0
Ti >0-1.0
and the balance Fe together with normally occurring impurities and additives, said alloy reducible by cold-working, especially by drawing med a rate of reduction of at least 99 percentage points and without intermediate heat treatment, and that it's strength is increased by a final heat treatment at 300°C to 500°C with at least 14%.
2. Product, manufactured of a high-strength steel austenitic stainless precipitation hardenable alloy according to claim 1, characterized in that it contains nickel at a content of between 8.0 and 11.0 weight-%.
3. Product, manufactured of a high -strength steel austenitic stainless precipitation hardenable alloy according to preceding claims, characterized in that it contains nickel at a content of between 9.0 and 10.0 weight-%. 21
4. Product, manufactured of a high -strength steel austenitic stainless precipitation hardenable alloy according to preceding claims, characterized in that it contains chromium at a content of between 16.0 and 19.0 weight-%.
5. Product, manufactured of a high -strength steel austenitic stainless precipitation hardenable alloy according to preceding claims, characterized in that it contains aluminium at a content of 0.4-1.0 weight-%.
Product, manufactured of a high -strength steel austenitic stainless precipitation hardenable alloy according to preceding claims, characterized in that it contains silicon at a content of 0.5 to 2.5 weight-%.
7. Product, manufactured of a high -strength steel austenitic stainless precipitation hardenable alloy according to preceding claims, characterized in that it contains silicon at a content of 0.5 to 1.5 weight-%.
8. Product according to claim 8-11, characterized in that it has loss of force which is smaller than 3.0 % at 1400 N during 24 h.
9. Product according to claim 8-10, characterized in that the product is manufactured in the form of wire, profiles and/or strip.
10. Product according to any one of the preceding claims, characterized in that it is especially suited for use i spring applications, such as springs of round wire and strip steel. 22
11. Product according to any one of the preceding claims, charac- t e r i z e d by for use in medical applications, such as surgical and dental instruments.
PCT/SE2002/002300 2001-12-11 2002-12-11 Precipitation hardenable austenitic steel WO2003056053A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP02792137A EP1472383B1 (en) 2001-12-11 2002-12-11 Precipitation hardenable austenitic steel
BRPI0214816-1A BR0214816B1 (en) 2001-12-11 2002-12-11 austenitic steel possibly hardening or quenching with precipitation.
KR1020047008951A KR100966068B1 (en) 2001-12-11 2002-12-11 Precipitation hardenable austenitic steel
US10/496,491 US20050126661A1 (en) 2001-12-11 2002-12-11 Precipitation hardenable austenitic steel
DE60219693T DE60219693T2 (en) 2001-12-11 2002-12-11 DESIGN-HARDENABLE AUSTENITIC STEEL
AU2002358375A AU2002358375A1 (en) 2001-12-11 2002-12-11 Precipitation hardenable austenitic steel
JP2003556567A JP4327601B2 (en) 2001-12-11 2002-12-11 Precipitation hardening austenitic steel
US11/487,442 US20070041863A1 (en) 2001-12-11 2006-07-17 Precipitation hardenable austenitic steel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0104192A SE526881C2 (en) 2001-12-11 2001-12-11 Secretion curable austenitic alloy, use of the alloy and preparation of a product of the alloy
SE0104192-0 2001-12-11

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/487,442 Continuation US20070041863A1 (en) 2001-12-11 2006-07-17 Precipitation hardenable austenitic steel

Publications (2)

Publication Number Publication Date
WO2003056053A1 WO2003056053A1 (en) 2003-07-10
WO2003056053B1 true WO2003056053B1 (en) 2004-04-08

Family

ID=20286302

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/SE2002/002299 WO2003056052A1 (en) 2001-12-11 2002-12-11 Precipitation hardenable austenitic steel
PCT/SE2002/002300 WO2003056053A1 (en) 2001-12-11 2002-12-11 Precipitation hardenable austenitic steel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/SE2002/002299 WO2003056052A1 (en) 2001-12-11 2002-12-11 Precipitation hardenable austenitic steel

Country Status (10)

Country Link
US (2) US20050126661A1 (en)
EP (1) EP1472383B1 (en)
JP (1) JP4327601B2 (en)
KR (1) KR100966068B1 (en)
AT (1) ATE360104T1 (en)
AU (2) AU2002358375A1 (en)
BR (1) BR0214816B1 (en)
DE (1) DE60219693T2 (en)
SE (1) SE526881C2 (en)
WO (2) WO2003056052A1 (en)

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US20060266439A1 (en) * 2002-07-15 2006-11-30 Maziasz Philip J Heat and corrosion resistant cast austenitic stainless steel alloy with improved high temperature strength
DE102005024029B3 (en) * 2005-05-23 2007-01-04 Technische Universität Bergakademie Freiberg Austenitic lightweight steel and its use
ES2354852T3 (en) * 2008-06-16 2011-03-18 Gally S.P.A. SELF-LOCKING NUT.
IT1396294B1 (en) 2009-10-05 2012-11-16 Gally S P A SELF-LOCKING NUTS
JP6259579B2 (en) 2012-03-29 2018-01-10 新日鐵住金ステンレス株式会社 High-strength stainless steel wire, high-strength spring, and method of manufacturing the same
KR101420782B1 (en) * 2013-12-30 2014-07-17 광일토건환경 주식회사 The processing method covering construction of the rod surface
JP6747639B2 (en) * 2014-08-28 2020-09-02 国立大学法人豊橋技術科学大学 Metal material and processing method
AT516464B1 (en) * 2014-11-03 2018-02-15 Berndorf Band Gmbh Metallic strips and their manufacturing processes
AT516453B1 (en) * 2014-11-03 2018-02-15 Berndorf Band Gmbh Metallic strips and their manufacturing processes
CN105483502A (en) * 2015-12-03 2016-04-13 浙江腾龙精线有限公司 Production method for spring wire
CN108977727A (en) * 2018-06-29 2018-12-11 柳州市横阳机械有限公司 The preparation method of stainless steel wire
CN112941423A (en) * 2019-11-26 2021-06-11 上海微创医疗器械（集团）有限公司 Medical alloy and stent
CN114959423B (en) * 2022-06-07 2023-04-14 甘肃酒钢集团宏兴钢铁股份有限公司 Smelting method of high-silicon titanium-containing austenitic stainless steel

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Also Published As

Publication number Publication date
JP2005513273A (en) 2005-05-12
EP1472383B1 (en) 2007-04-18
BR0214816A (en) 2004-08-31
SE0104192D0 (en) 2001-12-11
AU2002358375A1 (en) 2003-07-15
WO2003056052A1 (en) 2003-07-10
US20050126661A1 (en) 2005-06-16
US20070041863A1 (en) 2007-02-22
ATE360104T1 (en) 2007-05-15
WO2003056053A1 (en) 2003-07-10
KR100966068B1 (en) 2010-06-28
SE0104192L (en) 2003-06-12
DE60219693D1 (en) 2007-05-31
BR0214816B1 (en) 2011-02-08
KR20040061028A (en) 2004-07-06
JP4327601B2 (en) 2009-09-09
SE526881C2 (en) 2005-11-15
AU2002360028A1 (en) 2003-07-15
DE60219693T2 (en) 2007-12-27
EP1472383A2 (en) 2004-11-03

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