CA2791878A1 - Martensitic stainless steel with excellent weld characteristics, and martensitic stainless steel material - Google Patents

Martensitic stainless steel with excellent weld characteristics, and martensitic stainless steel material Download PDF

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Publication number
CA2791878A1
CA2791878A1 CA2791878A CA2791878A CA2791878A1 CA 2791878 A1 CA2791878 A1 CA 2791878A1 CA 2791878 A CA2791878 A CA 2791878A CA 2791878 A CA2791878 A CA 2791878A CA 2791878 A1 CA2791878 A1 CA 2791878A1
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CA
Canada
Prior art keywords
stainless steel
martensitic stainless
less
cndot
formula
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
CA2791878A
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French (fr)
Other versions
CA2791878C (en
Inventor
Shinji Tsuge
Haruhiko Kajimura
Hiroshige Inoue
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Nippon Steel Stainless Steel Corp
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Nippon Steel and Sumikin Stainless Steel Corp
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Publication of CA2791878A1 publication Critical patent/CA2791878A1/en
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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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/06—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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Arc Welding In General (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

The disclosed martensitic stainless steel includes, in terms of mass%, 0.003-0.03% C, 0.01-1.0% Si, 3.0-6.0% Mn, at most 0.05% P, at most 0.003% S, 1.0-3.0% Ni, 15.0-18.0% Cr, 0.0-1.0% Mo, 0.0-2.0% Cu, 0.0-0.05% Ti, at most 0.05% N, 0.001-0.1% Al and at most 0.005% O, with the remainder being Fe and unavoidable impurities, wherein the total content of C and N is at most 0.060%, max in equation (1) is at least 80, and pot in equation (2) is in the range of 60-90, inclusive. Equation (1): max = 420 X C% + 470 X N% + 23 X Ni% + 9 X Cu% + 7 X Mn% - 11.5 X Cr% - 11.5 X Si% - 52 X Al% + 189. Equation (2): pot = 700 X C% + 800 X N% + 10 X (Mn% + Cu%) + 20 X Ni% - 9.3 X Si% - 6.2 X Cr% - 9.3 X Mo% - 74.4 X Ti% - 37.2 X Al% + 63.2. Therein, C%, N%, Ni%, Cu%, Mn%, Cr%, Si%, Al%, Mo% and Ti% represent the content (in mass%) of the respective elements.

Claims (7)

1. Martensitic stainless steel with excellent weld characteristics comprising, in terms of percent by mass:

C: 0.003% to 0.03%;
Si: 0.01% to 1.0%;
Mn: 3.0% to 6.0%;
P: 0.05% or less;

S: 0.003% or less;
Ni: 1.0% to 3.0%;
Cr: 15.0% to 18.0%;
Mo: 0% to 1.0%;
Cu: 0% to 2.0%;

Ti: 0% to 0.05%;
N: 0.05% or less;

Al: 0.001 % to 0.1 %; and O: 0.005% or less, with a remainder being Fe and inevitable impurities, wherein a total amount of C and N is in a range of 0.060% or less, .gamma.max represented by the formula 1 is in a range of 80 or more, and .gamma. pot represented by the formula 2 is in a range of 60 to 90, .gamma.max = 420 x C% + 470 x N% + 23 x Ni% + 9 x Cu% + 7 x Mn% - 11.5 x Cr% -11.5 x Si% - 52 x Al% + 189 .cndot..cndot..cndot. Formula 1 .gamma.pot = 700 x C% + 800 x N% + 10 x (Mn% + Cu%) + 20 x Ni% - 9.3 x Si% -6.2 x Cr% - 9.3 x Mo% - 74.4 x Ti% - 37.2 x Al% + 63.2 .cndot..cndot..cndot.1 Formula 2 in which C%, N%, Ni%, Cu%, Mn%, Cr%, Si%, Al%, Mo%, and Ti% represent the contents (mass%) of the respective elements.
2. The martensitic stainless steel with excellent weld characteristics according to Claim 1, wherein the martensitic stainless steel further comprises Nb, and .gamma.pot that is calculated by the formula 3 instead of the formula 2 is in a range of 60 to 90, .gamma.pot = 700 x C% + 800 x N% + 10 x (Mn% + Cu%) + 20 x Ni% - 9.3 x Si% -6.2 x Cr% - 9.3 x Mo% - 3.1 x Nb% - 74.4 x Ti% - 37.2 x Al% + 63.2 .cndot..cndot..cndot. Formula 3 in which C%, N%, Mn%, Cu%, Ni%, Si%, Cr%, Mo%, Nb%, Ti%, and Al%
represent the contents (mass%) of the respective elements.
3. The martensitic stainless steel with excellent weld characteristics according to Claim 1 or 2, wherein the martensitic stainless steel further comprises either one or both of V:
0.5% or less and W: 1.0% or less.
4. The martensitic stainless steel with excellent weld characteristics according to any one of Claims 1 to 3, wherein the martensitic stainless steel further comprises Co: 1.0% or less.
5. The martensitic stainless steel with excellent weld characteristics according to any one of Claims 1 to 4, wherein the martensitic stainless steel further comprises one or more elected from B: 0.0050% or less, Ca: 0.0050% or less, Mg: 0.0030% or less, and REM: 0.10%
or less.
6. A martensitic stainless steel material, wherein the martensitic stainless steel material has a composition according to any one of Claims 1 to 5, and the martensitic stainless steel material has a structure comprising 5% to 30%
of a ferrite phase and 0% to 20% of a residual austenite phase with a remainder being a martensite phase.
7. The martensitic stainless steel material according to Claim 6, wherein a yield strength is in a range of 400 MPa to 800 MPa.
CA2791878A 2010-03-17 2011-03-09 Martensitic stainless steel with excellent weld characteristics, and martensitic stainless steel material Active CA2791878C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010-060048 2010-03-17
JP2010060048A JP5544197B2 (en) 2010-03-17 2010-03-17 Martensitic stainless steel and steel materials with excellent weld properties
PCT/JP2011/055502 WO2011114963A1 (en) 2010-03-17 2011-03-09 Martensitic stainless steel with excellent weld characteristics, and mertensitic stainless steel material

Publications (2)

Publication Number Publication Date
CA2791878A1 true CA2791878A1 (en) 2011-09-22
CA2791878C CA2791878C (en) 2015-02-24

Family

ID=44649061

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2791878A Active CA2791878C (en) 2010-03-17 2011-03-09 Martensitic stainless steel with excellent weld characteristics, and martensitic stainless steel material

Country Status (6)

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US (1) US20130039801A1 (en)
JP (1) JP5544197B2 (en)
KR (1) KR101479826B1 (en)
CN (1) CN102803538B (en)
CA (1) CA2791878C (en)
WO (1) WO2011114963A1 (en)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
IN2014DN09051A (en) * 2013-02-08 2015-05-22 Nippon Steel & Sumikin Sst
RU2524465C1 (en) * 2013-05-30 2014-07-27 Открытое акционерное общество Научно-производственное объединение "Центральный научно-исследовательский институт технологии машиностроения" ОАО НПО "ЦНИИТМАШ" Refractory martensitic steel
JP6124930B2 (en) * 2014-05-02 2017-05-10 日新製鋼株式会社 Martensitic stainless steel sheet and metal gasket
JP6417252B2 (en) * 2014-09-17 2018-11-07 新日鐵住金ステンレス株式会社 Martensitic stainless steel for brake disc and its manufacturing method
DE102015112215A1 (en) * 2015-07-27 2017-02-02 Salzgitter Flachstahl Gmbh High-alloy steel, in particular for the production of hydroformed tubes and method for producing such tubes from this steel
AU2017274993B2 (en) * 2016-06-01 2019-09-12 Nippon Steel Corporation Duplex stainless steel and duplex stainless steel manufacturing method
FI127450B (en) * 2016-06-30 2018-06-15 Outokumpu Oy Martensitic stainless steel and method for the manufacture
KR102146317B1 (en) * 2018-11-29 2020-08-20 주식회사 포스코 Ferritic stainless steel improved in corrosion resistance and manufacturing method thereof
CN110236263A (en) * 2019-06-25 2019-09-17 温州市三盟鞋业有限公司 A kind of high-heeled shoes sole
CN112941403A (en) * 2021-01-14 2021-06-11 上海欣冈贸易有限公司 Sulfur-free low-carbon steel metal alloy for welding and composition thereof
CN113234894B (en) * 2021-05-14 2022-02-11 东北大学 Method for improving corrosion resistance of nitrogen-containing duplex stainless steel

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JPH07138704A (en) * 1993-11-12 1995-05-30 Nisshin Steel Co Ltd High strength and high ductility dual-phase stainless steel and its production
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Also Published As

Publication number Publication date
JP5544197B2 (en) 2014-07-09
CN102803538B (en) 2014-06-04
JP2011190521A (en) 2011-09-29
CA2791878C (en) 2015-02-24
CN102803538A (en) 2012-11-28
WO2011114963A1 (en) 2011-09-22
KR101479826B1 (en) 2015-01-06
KR20120120428A (en) 2012-11-01
US20130039801A1 (en) 2013-02-14

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