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JPS5372763A - Method and apparatus for forming center hole during making seamless steel pipe - Google Patents

Method and apparatus for forming center hole during making seamless steel pipe

Info

Publication number
JPS5372763A
JPS5372763A JP14923676A JP14923676A JPS5372763A JP S5372763 A JPS5372763 A JP S5372763A JP 14923676 A JP14923676 A JP 14923676A JP 14923676 A JP14923676 A JP 14923676A JP S5372763 A JPS5372763 A JP S5372763A
Authority
JP
Japan
Prior art keywords
steel pipe
center hole
seamless steel
hole during
during making
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
JP14923676A
Other languages
Japanese (ja)
Inventor
Shigeshiki Kiyota
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP14923676A priority Critical patent/JPS5372763A/en
Publication of JPS5372763A publication Critical patent/JPS5372763A/en
Pending legal-status Critical Current

Links

JP14923676A 1976-12-10 1976-12-10 Method and apparatus for forming center hole during making seamless steel pipe Pending JPS5372763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14923676A JPS5372763A (en) 1976-12-10 1976-12-10 Method and apparatus for forming center hole during making seamless steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14923676A JPS5372763A (en) 1976-12-10 1976-12-10 Method and apparatus for forming center hole during making seamless steel pipe

Publications (1)

Publication Number Publication Date
JPS5372763A true JPS5372763A (en) 1978-06-28

Family

ID=15470844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14923676A Pending JPS5372763A (en) 1976-12-10 1976-12-10 Method and apparatus for forming center hole during making seamless steel pipe

Country Status (1)

Country Link
JP (1) JPS5372763A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174203A (en) * 1983-03-22 1984-10-02 Sumitomo Metal Ind Ltd Manufacture of seamless metallic pipe
JPS62199201U (en) * 1986-06-05 1987-12-18
JPH039204U (en) * 1989-06-14 1991-01-29 Sumitomo Heavy Industries
WO2007100042A1 (en) * 2006-03-01 2007-09-07 Sumitomo Metal Industries, Ltd. PROCESS FOR PRODUCING HIGH-Cr SEAMLESS PIPE
JP2010125493A (en) * 2008-11-28 2010-06-10 Jfe Steel Corp Piercing rolling method for billet
JP2010125494A (en) * 2008-11-28 2010-06-10 Jfe Steel Corp Piercing rolling method for billet

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174203A (en) * 1983-03-22 1984-10-02 Sumitomo Metal Ind Ltd Manufacture of seamless metallic pipe
JPH0479725B2 (en) * 1983-03-22 1992-12-16 Sumitomo Metal Ind
JPS62199201U (en) * 1986-06-05 1987-12-18
JPH039204U (en) * 1989-06-14 1991-01-29 Sumitomo Heavy Industries
WO2007100042A1 (en) * 2006-03-01 2007-09-07 Sumitomo Metal Industries, Ltd. PROCESS FOR PRODUCING HIGH-Cr SEAMLESS PIPE
EP1990107A1 (en) * 2006-03-01 2008-11-12 Sumitomo Metal Industries, Ltd. PROCESS FOR PRODUCING HIGH-Cr SEAMLESS PIPE
JPWO2007100042A1 (en) * 2006-03-01 2009-07-23 住友金属工業株式会社 High Cr seamless pipe manufacturing method
EP1990107A4 (en) * 2006-03-01 2012-05-30 Sumitomo Metal Ind PROCESS FOR PRODUCING HIGH-Cr SEAMLESS PIPE
JP2010125493A (en) * 2008-11-28 2010-06-10 Jfe Steel Corp Piercing rolling method for billet
JP2010125494A (en) * 2008-11-28 2010-06-10 Jfe Steel Corp Piercing rolling method for billet

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