JPH04187310A - Manufacture of seamless austenitic stainless steel tube - Google Patents

Manufacture of seamless austenitic stainless steel tube

Info

Publication number
JPH04187310A
JPH04187310A JP31358690A JP31358690A JPH04187310A JP H04187310 A JPH04187310 A JP H04187310A JP 31358690 A JP31358690 A JP 31358690A JP 31358690 A JP31358690 A JP 31358690A JP H04187310 A JPH04187310 A JP H04187310A
Authority
JP
Japan
Prior art keywords
elongator
temp
rolling
stainless steel
steel tube
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
JP31358690A
Other languages
Japanese (ja)
Other versions
JPH0729127B2 (en
Inventor
Tetsuya Nakanishi
Shigemitsu Kimura
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP2313586A priority Critical patent/JPH0729127B2/en
Publication of JPH04187310A publication Critical patent/JPH04187310A/en
Publication of JPH0729127B2 publication Critical patent/JPH0729127B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B19/00Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling Diescher mills, Stiefel disc piercers, Stiefel rotary piercers
    • B21B19/06Rolling hollow basic material, e.g. Assel mills

Abstract

PURPOSE: To restrain the generation of inside surface flaw and to obtain a stainless steel tube excellent in the quality of inside surface by rationalizing the inclination angle of the main rolls of an elongator, elongation ratio and internal temp. after rolling with the elongator at the time of elongating rolling with the inclined roll type elongator after Mannesmann piercing.
CONSTITUTION: In a method for manufacturing an austenitic stainless steel tube by skew rolling process, at the time of elongating rolling with the inclined roll type elongator 4 after Mannesmann piercing 3, a bar is elongating rolled by setting the inclination angle of the main rolls 4-1 at ≥6°, elongation ratio at ≤1.7 and adjusting the temp. of rolled stock at a temp. that the internal temp. of a rolled stock 1-1 after rolling with the elongator 4 is ≥50% in the reduction of area when a test piece is broken in a high-temp. tensile test.
COPYRIGHT: (C)1992,JPO&Japio
JP2313586A 1990-11-19 1990-11-19 Method for producing seamless austenitic stainless steel pipe Expired - Fee Related JPH0729127B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2313586A JPH0729127B2 (en) 1990-11-19 1990-11-19 Method for producing seamless austenitic stainless steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2313586A JPH0729127B2 (en) 1990-11-19 1990-11-19 Method for producing seamless austenitic stainless steel pipe

Publications (2)

Publication Number Publication Date
JPH04187310A true JPH04187310A (en) 1992-07-06
JPH0729127B2 JPH0729127B2 (en) 1995-04-05

Family

ID=18043098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2313586A Expired - Fee Related JPH0729127B2 (en) 1990-11-19 1990-11-19 Method for producing seamless austenitic stainless steel pipe

Country Status (1)

Country Link
JP (1) JPH0729127B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002239612A (en) * 2001-02-21 2002-08-27 Nkk Corp Method of manufacturing seamless tube
WO2013065553A1 (en) 2011-11-01 2013-05-10 新日鐵住金株式会社 Seamless-metal-pipe manufacturing method
WO2013065554A1 (en) 2011-11-01 2013-05-10 新日鐵住金株式会社 Seamless-metal-pipe manufacturing method
CN103464507A (en) * 2013-07-25 2013-12-25 攀钢集团成都钢钒有限公司 Production method for high-precision austenite seamless steel pipe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3127822B2 (en) * 1996-04-10 2001-01-29 住友金属工業株式会社 Manufacturing method of seamless stainless steel pipe made of duplex stainless steel

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4603707B2 (en) * 2001-02-21 2010-12-22 エヌケーケーシームレス鋼管株式会社 Seamless pipe manufacturing method
JP2002239612A (en) * 2001-02-21 2002-08-27 Nkk Corp Method of manufacturing seamless tube
US9308561B2 (en) 2011-11-01 2016-04-12 Nippon Steel & Sumitomo Metal Corporation Method of producing seamless metal pipe
WO2013065553A1 (en) 2011-11-01 2013-05-10 新日鐵住金株式会社 Seamless-metal-pipe manufacturing method
WO2013065554A1 (en) 2011-11-01 2013-05-10 新日鐵住金株式会社 Seamless-metal-pipe manufacturing method
JP2013094825A (en) * 2011-11-01 2013-05-20 Nippon Steel & Sumitomo Metal Corp Seamless-metal-pipe manufacturing method
JP2013094826A (en) * 2011-11-01 2013-05-20 Nippon Steel & Sumitomo Metal Corp Seamless-metal-pipe manufacturing method
CN103906584A (en) * 2011-11-01 2014-07-02 新日铁住金株式会社 Seamless-metal-pipe manufacturing method
CN103917307A (en) * 2011-11-01 2014-07-09 新日铁住金株式会社 Seamless-metal-pipe manufacturing method
CN103917307B (en) * 2011-11-01 2016-04-27 新日铁住金株式会社 The manufacture method of seamless metal pipe
US9221087B2 (en) 2011-11-01 2015-12-29 Nippon Steel & Sumitomo Metal Corporation Method of producing seamless metal pipe
CN103906584B (en) * 2011-11-01 2016-02-17 新日铁住金株式会社 The manufacture method of seamless metal pipe
CN103464507A (en) * 2013-07-25 2013-12-25 攀钢集团成都钢钒有限公司 Production method for high-precision austenite seamless steel pipe
CN103464507B (en) * 2013-07-25 2015-11-11 攀钢集团成都钢钒有限公司 A kind of method of producing high-precision austenite seamless steel pipe

Also Published As

Publication number Publication date
JPH0729127B2 (en) 1995-04-05

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