JPS55158256A - Ferritic-austenitic two-phase stainless steel - Google Patents

Ferritic-austenitic two-phase stainless steel

Info

Publication number
JPS55158256A
JPS55158256A JP6558279A JP6558279A JPS55158256A JP S55158256 A JPS55158256 A JP S55158256A JP 6558279 A JP6558279 A JP 6558279A JP 6558279 A JP6558279 A JP 6558279A JP S55158256 A JPS55158256 A JP S55158256A
Authority
JP
Japan
Prior art keywords
equivalent
steel
ferritic
austenitic
stainless steel
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.)
Pending
Application number
JP6558279A
Other languages
Japanese (ja)
Inventor
Masakuni Fujikura
Kiyohito Ishida
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP6558279A priority Critical patent/JPS55158256A/en
Publication of JPS55158256A publication Critical patent/JPS55158256A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide high strength, high toughness and superior corrosion resistance to the title steel by composing the steel of a specified amount each of C, Si, Mn, Ni, Cr, Mo, Al, Cu and N, and the balance Fe, etc. and restricting the Cr equivalent, the Ni equivalent and the δ-ferrite content of the steel.
CONSTITUTION: This steel is composed of C<0.15%, Si<2%, Mn<3%, Ni 3W 9%, Cr 13W28%, Mo<4%, Cu<4%, Al<0.5%, N<0.4%, and the balance Fe, etc., and the following conditions are satisfied: Cr equivalent=20W35, Ni equivalent=5W15 and δ-ferrite=20W80% calculated by equations Cr equivalent=Cr+ 1.21Mo+0.48Si+2.27V+0.72W+2.2Ti+0.14Nb+0.21Ta+2.48Al+0.2Zr, Ni equivalent=Ni+1.1Mn-0.086(Mn)2+0.44Cu+18.4N+24.5C and δ-ferrite%= 4.01+3.12(Cr equivalent)-3.89(Ni equivalent).
COPYRIGHT: (C)1980,JPO&Japio
JP6558279A 1979-05-29 1979-05-29 Ferritic-austenitic two-phase stainless steel Pending JPS55158256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6558279A JPS55158256A (en) 1979-05-29 1979-05-29 Ferritic-austenitic two-phase stainless steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6558279A JPS55158256A (en) 1979-05-29 1979-05-29 Ferritic-austenitic two-phase stainless steel

Publications (1)

Publication Number Publication Date
JPS55158256A true JPS55158256A (en) 1980-12-09

Family

ID=13291136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6558279A Pending JPS55158256A (en) 1979-05-29 1979-05-29 Ferritic-austenitic two-phase stainless steel

Country Status (1)

Country Link
JP (1) JPS55158256A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405389A (en) * 1982-10-21 1983-09-20 Ingersoll-Rand Company Austenitic stainless steel casting alloy for corrosive applications
WO1984002929A1 (en) * 1983-01-31 1984-08-02 Kobe Steel Ltd Corrosion-resistant stainless steel material
JPS59143050A (en) * 1983-02-03 1984-08-16 Kubota Ltd Two-phase stainless cast steel with high corrosion resistance and toughness
US4561890A (en) * 1982-02-23 1985-12-31 Kubota Ltd. Two-phase stainless cast steel having high corrosion fatigue strength
US4612069A (en) * 1984-08-06 1986-09-16 Sandusky Foundry & Machine Company Pitting resistant duplex stainless steel alloy
US4715908A (en) * 1985-11-26 1987-12-29 Esco Corporation Duplex stainless steel product with improved mechanical properties
US4740254A (en) * 1984-08-06 1988-04-26 Sandusky Foundry & Machine Co. Pitting resistant duplex stainless steel alloy
US4798635A (en) * 1984-03-30 1989-01-17 Santrade Limited Ferritic-austenitic stainless steel
JPH01132741A (en) * 1987-08-14 1989-05-25 Haynes Internatl Inc Rustless steel having weldable tough mixed structure
US4897132A (en) * 1984-10-03 1990-01-30 Kabushiki Kaisha Tohsiba Turbine casing formed of a heat resistant austenitic cast steel
JPH03229841A (en) * 1990-02-01 1991-10-11 Shinko Kosen Kogyo Kk Spring stainless steel wire excellent in dimensional stability at the time of low temperature annealing
US5069870A (en) * 1989-03-06 1991-12-03 Sumitomo Metal Industries, Ltd. High-strength high-cr steel with excellent toughness and oxidation resistance
US5238508A (en) * 1984-02-07 1993-08-24 Kubota, Ltd. Ferritic-austenitic duplex stainless steel
JPH05302118A (en) * 1992-03-27 1993-11-16 Kubota Corp Production of duplex stainless steel excellent in drillability and bitability
JPH08120413A (en) * 1994-10-26 1996-05-14 Yasuki Seisakusho:Kk Casting member of two-phase stainless steel and its production
JPH08176742A (en) * 1994-12-27 1996-07-09 Sumitomo Metal Ind Ltd Duplex stainless steel excellent in corrosion resistance in hydrogen sulfide atmosphere
JP2007292278A (en) * 2006-03-30 2007-11-08 Nohmi Bosai Ltd Equal differential pressure control pilot valve
EP2476771A1 (en) * 2009-09-10 2012-07-18 Sumitomo Metal Industries, Ltd. Two-phase stainless steel
EP2677056A1 (en) * 2011-02-14 2013-12-25 Nippon Steel & Sumitomo Metal Corporation Duplex stainless steel

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561890A (en) * 1982-02-23 1985-12-31 Kubota Ltd. Two-phase stainless cast steel having high corrosion fatigue strength
US4405389A (en) * 1982-10-21 1983-09-20 Ingersoll-Rand Company Austenitic stainless steel casting alloy for corrosive applications
WO1984002929A1 (en) * 1983-01-31 1984-08-02 Kobe Steel Ltd Corrosion-resistant stainless steel material
JPS59143050A (en) * 1983-02-03 1984-08-16 Kubota Ltd Two-phase stainless cast steel with high corrosion resistance and toughness
JPS628505B2 (en) * 1983-02-03 1987-02-23 Kubota Ltd
US5238508A (en) * 1984-02-07 1993-08-24 Kubota, Ltd. Ferritic-austenitic duplex stainless steel
US4798635A (en) * 1984-03-30 1989-01-17 Santrade Limited Ferritic-austenitic stainless steel
US4612069A (en) * 1984-08-06 1986-09-16 Sandusky Foundry & Machine Company Pitting resistant duplex stainless steel alloy
US4740254A (en) * 1984-08-06 1988-04-26 Sandusky Foundry & Machine Co. Pitting resistant duplex stainless steel alloy
US4897132A (en) * 1984-10-03 1990-01-30 Kabushiki Kaisha Tohsiba Turbine casing formed of a heat resistant austenitic cast steel
US4715908A (en) * 1985-11-26 1987-12-29 Esco Corporation Duplex stainless steel product with improved mechanical properties
JPH01132741A (en) * 1987-08-14 1989-05-25 Haynes Internatl Inc Rustless steel having weldable tough mixed structure
US5069870A (en) * 1989-03-06 1991-12-03 Sumitomo Metal Industries, Ltd. High-strength high-cr steel with excellent toughness and oxidation resistance
JPH03229841A (en) * 1990-02-01 1991-10-11 Shinko Kosen Kogyo Kk Spring stainless steel wire excellent in dimensional stability at the time of low temperature annealing
JPH05302118A (en) * 1992-03-27 1993-11-16 Kubota Corp Production of duplex stainless steel excellent in drillability and bitability
JPH08120413A (en) * 1994-10-26 1996-05-14 Yasuki Seisakusho:Kk Casting member of two-phase stainless steel and its production
JPH08176742A (en) * 1994-12-27 1996-07-09 Sumitomo Metal Ind Ltd Duplex stainless steel excellent in corrosion resistance in hydrogen sulfide atmosphere
JP2007292278A (en) * 2006-03-30 2007-11-08 Nohmi Bosai Ltd Equal differential pressure control pilot valve
EP2476771A1 (en) * 2009-09-10 2012-07-18 Sumitomo Metal Industries, Ltd. Two-phase stainless steel
EP2476771A4 (en) * 2009-09-10 2014-07-23 Nippon Steel & Sumitomo Metal Corp Two-phase stainless steel
EP2902525A1 (en) * 2009-09-10 2015-08-05 Nippon Steel & Sumitomo Metal Corporation Duplex stainless steel
EP2677056A1 (en) * 2011-02-14 2013-12-25 Nippon Steel & Sumitomo Metal Corporation Duplex stainless steel
EP2677056A4 (en) * 2011-02-14 2015-03-25 Nippon Steel & Sumitomo Metal Corp Duplex stainless steel

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