JPS574320A - Manufacture of square steel pipe - Google Patents

Manufacture of square steel pipe

Info

Publication number
JPS574320A
JPS574320A JP7857780A JP7857780A JPS574320A JP S574320 A JPS574320 A JP S574320A JP 7857780 A JP7857780 A JP 7857780A JP 7857780 A JP7857780 A JP 7857780A JP S574320 A JPS574320 A JP S574320A
Authority
JP
Japan
Prior art keywords
pipe
blank pipe
square
square blank
circumferential length
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
JP7857780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6115769B2 (enExample
Inventor
Shozo Watanabe
Seiichiro Ogawa
Hisashi Sogawa
Eikichi Kaji
Akio Akahori
Hirotaku Onda
Kenichi Hashiiwa
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 Metal Products Co Ltd
Original Assignee
Nippon Steel Metal Products 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 Nippon Steel Metal Products Co Ltd filed Critical Nippon Steel Metal Products Co Ltd
Priority to JP7857780A priority Critical patent/JPS574320A/ja
Publication of JPS574320A publication Critical patent/JPS574320A/ja
Publication of JPS6115769B2 publication Critical patent/JPS6115769B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)
JP7857780A 1980-06-11 1980-06-11 Manufacture of square steel pipe Granted JPS574320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7857780A JPS574320A (en) 1980-06-11 1980-06-11 Manufacture of square steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7857780A JPS574320A (en) 1980-06-11 1980-06-11 Manufacture of square steel pipe

Publications (2)

Publication Number Publication Date
JPS574320A true JPS574320A (en) 1982-01-09
JPS6115769B2 JPS6115769B2 (enExample) 1986-04-25

Family

ID=13665750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7857780A Granted JPS574320A (en) 1980-06-11 1980-06-11 Manufacture of square steel pipe

Country Status (1)

Country Link
JP (1) JPS574320A (enExample)

Also Published As

Publication number Publication date
JPS6115769B2 (enExample) 1986-04-25

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