CA2572130A1 - Stainless steel powder - Google Patents

Stainless steel powder Download PDF

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Publication number
CA2572130A1
CA2572130A1 CA002572130A CA2572130A CA2572130A1 CA 2572130 A1 CA2572130 A1 CA 2572130A1 CA 002572130 A CA002572130 A CA 002572130A CA 2572130 A CA2572130 A CA 2572130A CA 2572130 A1 CA2572130 A1 CA 2572130A1
Authority
CA
Canada
Prior art keywords
steel powder
stainless steel
less
weight
vanadium
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
CA002572130A
Other languages
French (fr)
Other versions
CA2572130C (en
Inventor
Owe Mars
Ricardo Canto Leyton
Ola Bergman
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.)
Hoganas AB
Original Assignee
Owe Mars
Ricardo Canto Leyton
Ola Bergman
Hoeganaes Ab
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 Owe Mars, Ricardo Canto Leyton, Ola Bergman, Hoeganaes Ab filed Critical Owe Mars
Publication of CA2572130A1 publication Critical patent/CA2572130A1/en
Application granted granted Critical
Publication of CA2572130C publication Critical patent/CA2572130C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/02Making ferrous alloys by powder metallurgy
    • C22C33/0257Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10Processes characterised by the sequence of their steps

Abstract

The invention concerns a stainless steel powder and composition comprising at least 10w-t% chromium. Vanadium is present in an amount of at least 4 times the amount of carbon and nitrogen. The steel powder comprises 10-30% chromium, 0.1-1.0 vanadium, 0.5-1.5% silicon, less than 0.1% carbon and less than 0.07% nitrogen. A process for preparing a sintered part and a sintered part are also claimed.

Claims (8)

1. A pre-alloyed stainless steel powder comprising at least 10% by weight of chromium, less than 0.1% by weight of carbon and less than 0.07% by weight of nitrogen, said powder further comprising vanadium in an amount of at least 4 times the combined amounts of carbon and nitrogen, wherein the amount of vanadium is 0.1-1% by weight.
2. The stainless steel powder according to claim 1, wherein the steel powder further comprises 10-30%
chromium and 0.5-1.5% silicon.
3. The stainless steel powder according to claim 1 or 2, wherein the steel powder comprises 10-20%
chromium, 0.15-0.8% vanadium, 0.7-1.2% silicon, less than 0.05% carbon and less than 0.05%
nitrogen.
4. The stainless steel powder according to claim 1, 2 or 3, wherein the steel powder is essentially free from nickel.
5. A powder metallurgical composition comprising a stainless steel powder according to anyone of the preceding claims and additives selected from the group consisting of lubricants, flow agents, machinability improving agents and alloying elements.
6. A process of preparing compacted parts of stainless steel powder comprising the steps of:
- subjecting a steel powder according to anyone of claims 1 to 4 optionally mixed with a lubricant - sintering the compacted part at a temperature of 1150-1350°C.
7. The process according to claim 6, wherein sintering is made to a density of at least 7.20 g/cm3
8. A sintered part of stainless steel powder according to anyone of claims 1 to 4, having a sintered density of at least 7.20 g/cm3.
CA2572130A 2004-07-02 2005-07-01 Stainless steel powder Expired - Fee Related CA2572130C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0401707A SE0401707D0 (en) 2004-07-02 2004-07-02 Stainless steel powder
SE0401707-5 2004-07-02
PCT/SE2005/001086 WO2006004529A1 (en) 2004-07-02 2005-07-01 Stainless steel powder

Publications (2)

Publication Number Publication Date
CA2572130A1 true CA2572130A1 (en) 2006-01-12
CA2572130C CA2572130C (en) 2011-01-18

Family

ID=32733732

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2572130A Expired - Fee Related CA2572130C (en) 2004-07-02 2005-07-01 Stainless steel powder

Country Status (17)

Country Link
EP (1) EP1768803B1 (en)
JP (1) JP4580984B2 (en)
CN (1) CN101124058B (en)
AT (1) ATE483541T1 (en)
AU (1) AU2005260139B2 (en)
BR (1) BRPI0512943A (en)
CA (1) CA2572130C (en)
DE (1) DE602005023998D1 (en)
DK (1) DK1768803T3 (en)
ES (1) ES2354019T3 (en)
MX (1) MXPA06015244A (en)
RU (1) RU2345866C2 (en)
SE (1) SE0401707D0 (en)
TW (1) TWI279268B (en)
UA (1) UA83145C2 (en)
WO (1) WO2006004529A1 (en)
ZA (1) ZA200700040B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2066823B1 (en) * 2006-09-22 2010-11-24 Höganäs Ab (publ) Metallurgical powder composition and method of production
BRPI0718512B1 (en) * 2006-09-22 2016-09-13 Hoeganaes Ab Publ metallurgical powder composition and production method
US9145598B2 (en) * 2009-10-16 2015-09-29 Hoganas Ab (Publ) Nitrogen containing, low nickel sintered stainless steel
CN102933338B (en) * 2010-06-04 2017-01-25 霍加纳斯股份有限公司 Nitrided sintered steels
TWI421374B (en) * 2011-01-28 2014-01-01 Taiwan Powder Technologies Co Ltd Stainless steel low temperature carburizing method
TWI421375B (en) * 2011-01-28 2014-01-01 Taiwan Powder Technologies Co Ltd Methods for improving the mechanical properties of non - Austrian iron - based stainless steel surfaces
TWI421376B (en) * 2011-01-28 2014-01-01 Taiwan Powder Technologies Co Ltd Method of Improving Strength and Hardness of Powder Metallurgy Stainless Steel
CN102660709A (en) * 2012-04-24 2012-09-12 邓湘凌 High-strength wear-resisting alloy and preparation method thereof
DE102012216052A1 (en) * 2012-09-11 2014-04-10 Robert Bosch Gmbh Sintered pressing part and method for producing such
CN103643160B (en) * 2013-11-11 2016-01-20 常熟市迅达粉末冶金有限公司 A kind of high-performance 17-4PH stainless steel and preparation method thereof
JP6314842B2 (en) * 2015-01-06 2018-04-25 セイコーエプソン株式会社 Metal powder for powder metallurgy, compound, granulated powder and sintered body
JP6314846B2 (en) * 2015-01-09 2018-04-25 セイコーエプソン株式会社 Metal powder for powder metallurgy, compound, granulated powder and sintered body
JP6319121B2 (en) * 2015-01-29 2018-05-09 セイコーエプソン株式会社 Method for producing metal powder for powder metallurgy, compound, granulated powder and sintered body
JP6314866B2 (en) * 2015-02-09 2018-04-25 セイコーエプソン株式会社 Method for producing metal powder for powder metallurgy, compound, granulated powder and sintered body
RU2750720C1 (en) * 2020-04-18 2021-07-01 Федеральное государственное бюджетное образовательное учреждение высшего образования "Юго-Западный государственный университет" (ЮЗГУ) Method of obtaining a sintered product from powder corrosive steel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947358A (en) * 1982-09-08 1984-03-17 Kawasaki Steel Corp Steel powder for wear resistant sintered alloy
ZA938889B (en) * 1992-12-07 1994-08-01 Mintek Stainless steel composition
ES2140066T3 (en) * 1995-03-10 2000-02-16 Powdrex Ltd STAINLESS STEEL POWDERS AND ARTICLES PRODUCED THEREOF BY POWDER METALLURGY.
JP4975916B2 (en) * 2001-09-21 2012-07-11 株式会社日立製作所 High toughness and high strength ferritic steel and its manufacturing method
SE0201825D0 (en) * 2002-06-14 2002-06-14 Hoeganaes Ab Hot compaction or steel powders

Also Published As

Publication number Publication date
RU2345866C2 (en) 2009-02-10
CA2572130C (en) 2011-01-18
CN101124058A (en) 2008-02-13
AU2005260139B2 (en) 2009-09-03
SE0401707D0 (en) 2004-07-02
TW200605972A (en) 2006-02-16
JP2008505248A (en) 2008-02-21
AU2005260139A1 (en) 2006-01-12
UA83145C2 (en) 2008-06-10
MXPA06015244A (en) 2007-03-15
WO2006004529A1 (en) 2006-01-12
ATE483541T1 (en) 2010-10-15
ES2354019T3 (en) 2011-03-09
ZA200700040B (en) 2008-06-25
EP1768803B1 (en) 2010-10-06
CN101124058B (en) 2010-06-16
BRPI0512943A (en) 2008-04-15
EP1768803A1 (en) 2007-04-04
DE602005023998D1 (en) 2010-11-18
TWI279268B (en) 2007-04-21
RU2007104054A (en) 2008-08-10
DK1768803T3 (en) 2011-01-31
JP4580984B2 (en) 2010-11-17

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