JPS5729530A - Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength - Google Patents

Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength

Info

Publication number
JPS5729530A
JPS5729530A JP10239280A JP10239280A JPS5729530A JP S5729530 A JPS5729530 A JP S5729530A JP 10239280 A JP10239280 A JP 10239280A JP 10239280 A JP10239280 A JP 10239280A JP S5729530 A JPS5729530 A JP S5729530A
Authority
JP
Japan
Prior art keywords
high temperature
pipe
austenite
less
oxidation resistance
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
JP10239280A
Other languages
Japanese (ja)
Inventor
Kazuhiro Kanero
Yusuke Minami
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP10239280A priority Critical patent/JPS5729530A/en
Publication of JPS5729530A publication Critical patent/JPS5729530A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:To improve the high temperature steam oxidation resistance and high temperature long duration strength, by carrying out the nitriding treatment at a low temperature of an austenite-containing alloy pipe made of Cr-Ni steel having a specific composition and further by carrying out the solution treatment of the alloy pipe. CONSTITUTION:Pipes made of austenite-containing alloy steel containing 15-26% Cr, 8-35% Ni, 1.0% or less Si, 2.0% or less Mn and 0.2% or less Ti and, if necessary, further at least one element of 3% or less Mo and 0.6% or less Al are mitrided at a relatively low temperature of 500-1.000 deg.C. Subsequently, the solution treatment of the pipe is carried out at a temperature of 1,100 deg.C or higher to form a fine grain layer 50-500mu thick having a grain size mumber of 7 or finer on the inner surface of the pipe and to provide the pipe with a structure comprising the residual part having a grain size of 3-7. As the nitriding treatment is carried out at a low temperature, the evaporation of Cr in the alloy steel and the formation of an oxide film on the inner surface of the pipe are prevented so that the high temperature steam oxidation resistance and the high temperature long duration strength are improved.
JP10239280A 1980-07-28 1980-07-28 Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength Pending JPS5729530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10239280A JPS5729530A (en) 1980-07-28 1980-07-28 Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10239280A JPS5729530A (en) 1980-07-28 1980-07-28 Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength

Publications (1)

Publication Number Publication Date
JPS5729530A true JPS5729530A (en) 1982-02-17

Family

ID=14326167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10239280A Pending JPS5729530A (en) 1980-07-28 1980-07-28 Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength

Country Status (1)

Country Link
JP (1) JPS5729530A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62278230A (en) * 1986-05-26 1987-12-03 Nippon Steel Corp Manufacture of seam welded stainless steel pipe
US7014720B2 (en) 2002-03-08 2006-03-21 Sumitomo Metal Industries, Ltd. Austenitic stainless steel tube excellent in steam oxidation resistance and a manufacturing method thereof
US20160289812A1 (en) * 2010-02-04 2016-10-06 Oda Industries Co., Ltd. Process for manufacturing high-nitrogen stainless steel pipe with high strength, high ductility, and excellent corrosion and heat resistance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62278230A (en) * 1986-05-26 1987-12-03 Nippon Steel Corp Manufacture of seam welded stainless steel pipe
JPH0246652B2 (en) * 1986-05-26 1990-10-16 Nippon Steel Corp
US7014720B2 (en) 2002-03-08 2006-03-21 Sumitomo Metal Industries, Ltd. Austenitic stainless steel tube excellent in steam oxidation resistance and a manufacturing method thereof
US20160289812A1 (en) * 2010-02-04 2016-10-06 Oda Industries Co., Ltd. Process for manufacturing high-nitrogen stainless steel pipe with high strength, high ductility, and excellent corrosion and heat resistance
US11015238B2 (en) * 2010-02-04 2021-05-25 Harumatu Miura Process for manufacturing high-nitrogen stainless steel pipe with high strength, high ductility, and excellent corrosion and heat resistance

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