JPS6456853A - Square tube excellent in molten zinc cracking resistance - Google Patents

Square tube excellent in molten zinc cracking resistance

Info

Publication number
JPS6456853A
JPS6456853A JP21480887A JP21480887A JPS6456853A JP S6456853 A JPS6456853 A JP S6456853A JP 21480887 A JP21480887 A JP 21480887A JP 21480887 A JP21480887 A JP 21480887A JP S6456853 A JPS6456853 A JP S6456853A
Authority
JP
Japan
Prior art keywords
square tube
stock
hot dip
molten
cracking 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
JP21480887A
Other languages
Japanese (ja)
Inventor
Takayoshi Shimomura
Toshihiro Takamura
Koji Yazawa
Michihiko Ida
Kensaku Kono
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 JP21480887A priority Critical patent/JPS6456853A/en
Publication of JPS6456853A publication Critical patent/JPS6456853A/en
Pending legal-status Critical Current

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  • Coating With Molten Metal (AREA)

Abstract

PURPOSE:To prevent the molten Zn cracking of a hot dip galvanized square tube and to stably manufacture a highly corrosion-resistant square tube, by regulating C content in a square tube stock to a specific value or above and specifying the quantitative relationship with respective contents of other elements such as Si, Mn, etc. CONSTITUTION:In order to improve the appearance and corrosion protecting property of a square tube as a structural member, hot dip galvanizing is applied to the above. At this time, as to a square tube stock, C content in the square tube stock is regulated to >=0.13% and also a steel stock having a composition in which one or more components among C, Si, and Mn are regulated to the values satisfying inequality (1) and the balance consists of Fe is used. By this method, the square tube having >=40kg/cm<2> tensile strength and causing no molten Zn cracking in corner parts even if subjected to hot dip galvanizing can be obtained.
JP21480887A 1987-08-28 1987-08-28 Square tube excellent in molten zinc cracking resistance Pending JPS6456853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21480887A JPS6456853A (en) 1987-08-28 1987-08-28 Square tube excellent in molten zinc cracking resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21480887A JPS6456853A (en) 1987-08-28 1987-08-28 Square tube excellent in molten zinc cracking resistance

Publications (1)

Publication Number Publication Date
JPS6456853A true JPS6456853A (en) 1989-03-03

Family

ID=16661865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21480887A Pending JPS6456853A (en) 1987-08-28 1987-08-28 Square tube excellent in molten zinc cracking resistance

Country Status (1)

Country Link
JP (1) JPS6456853A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH083634A (en) * 1994-06-22 1996-01-09 Kawasaki Steel Corp Method for manufacturing hot rolled steel sheet for high toughness square steel pipe excellent in Zn plating cracking resistance and high toughness square steel pipe
JPWO2024241645A1 (en) * 2023-05-19 2024-11-28

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49130310A (en) * 1973-04-20 1974-12-13
JPS5643101A (en) * 1979-09-18 1981-04-21 Shin Meiwa Ind Co Ltd Successive operation controller in garbage wagon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49130310A (en) * 1973-04-20 1974-12-13
JPS5643101A (en) * 1979-09-18 1981-04-21 Shin Meiwa Ind Co Ltd Successive operation controller in garbage wagon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH083634A (en) * 1994-06-22 1996-01-09 Kawasaki Steel Corp Method for manufacturing hot rolled steel sheet for high toughness square steel pipe excellent in Zn plating cracking resistance and high toughness square steel pipe
JPWO2024241645A1 (en) * 2023-05-19 2024-11-28

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