JPS56102557A - High manganese nonmagnetic steel having (gamma+epsilon) two-phase structure - Google Patents

High manganese nonmagnetic steel having (gamma+epsilon) two-phase structure

Info

Publication number
JPS56102557A
JPS56102557A JP358380A JP358380A JPS56102557A JP S56102557 A JPS56102557 A JP S56102557A JP 358380 A JP358380 A JP 358380A JP 358380 A JP358380 A JP 358380A JP S56102557 A JPS56102557 A JP S56102557A
Authority
JP
Japan
Prior art keywords
phase
steel
thermal expansion
nonmagnetic steel
temp
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
JP358380A
Other languages
Japanese (ja)
Other versions
JPS5756545B2 (en
Inventor
Akishi Sasaki
Kiyohiko Nohara
Hiroshi Ono
Nobuo Ohashi
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP358380A priority Critical patent/JPS56102557A/en
Publication of JPS56102557A publication Critical patent/JPS56102557A/en
Publication of JPS5756545B2 publication Critical patent/JPS5756545B2/ja
Granted legal-status Critical Current

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  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE: To provide the titled high Mn nonmagnetic steel having superior ductility and toughness over a wide temp. range and low thermal expansion by adding a predetermined percentage each of C, Si, Mn, Cr, N and Al and specifying the content of C+N.
CONSTITUTION: This high Mn nonmagnetic steel consists of ≤0.2% C, ≤1.5% Si, 17W31% Mn, ≤12% Cr, ≤0.025% N, 0.2W2% Al and the balance essentially Fe, satisfies C+N≤0.2%, and has a (γ+ε) two-phase structure contg. 1W45vol% ε-phase. By especially adding Al and controlling the ratio of γ-phase to ε-phase to the above-mentioned value, the steel has a remarkably lowered thermal expansion coefft. as compared with a conventional γ-phase single phase high Mn steel. The steel is applicable to various kinds of products and structure requiring ductility, toughness and especially low thermal expansion in a low temp. region of room temp. or below.
COPYRIGHT: (C)1981,JPO&Japio
JP358380A 1980-01-18 1980-01-18 High manganese nonmagnetic steel having (gamma+epsilon) two-phase structure Granted JPS56102557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP358380A JPS56102557A (en) 1980-01-18 1980-01-18 High manganese nonmagnetic steel having (gamma+epsilon) two-phase structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP358380A JPS56102557A (en) 1980-01-18 1980-01-18 High manganese nonmagnetic steel having (gamma+epsilon) two-phase structure

Publications (2)

Publication Number Publication Date
JPS56102557A true JPS56102557A (en) 1981-08-17
JPS5756545B2 JPS5756545B2 (en) 1982-11-30

Family

ID=11561466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP358380A Granted JPS56102557A (en) 1980-01-18 1980-01-18 High manganese nonmagnetic steel having (gamma+epsilon) two-phase structure

Country Status (1)

Country Link
JP (1) JPS56102557A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716145A (en) * 1980-07-03 1982-01-27 Daido Steel Co Ltd High manganese non magnetic steel having small thermal expansion coefficient

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432495A (en) * 1990-05-28 1992-02-04 Hitachi Ltd Ingot holding tong

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5481118A (en) * 1977-12-12 1979-06-28 Sumitomo Metal Ind Ltd Nonmagnetic steel excellent in mechanical properties

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5481118A (en) * 1977-12-12 1979-06-28 Sumitomo Metal Ind Ltd Nonmagnetic steel excellent in mechanical properties

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716145A (en) * 1980-07-03 1982-01-27 Daido Steel Co Ltd High manganese non magnetic steel having small thermal expansion coefficient

Also Published As

Publication number Publication date
JPS5756545B2 (en) 1982-11-30

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