JPS5499032A - Unrefined high tensile steel with superior weldability - Google Patents

Unrefined high tensile steel with superior weldability

Info

Publication number
JPS5499032A
JPS5499032A JP599278A JP599278A JPS5499032A JP S5499032 A JPS5499032 A JP S5499032A JP 599278 A JP599278 A JP 599278A JP 599278 A JP599278 A JP 599278A JP S5499032 A JPS5499032 A JP S5499032A
Authority
JP
Japan
Prior art keywords
steel
high tensile
superior weldability
tensile steel
toughness
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
JP599278A
Other languages
Japanese (ja)
Other versions
JPS5719744B2 (en
Inventor
Shinichi Suzuki
Takeshi Miki
Kentaro Okamoto
Ken Kanetani
Yutaka Tsuchida
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 JP599278A priority Critical patent/JPS5499032A/en
Publication of JPS5499032A publication Critical patent/JPS5499032A/en
Publication of JPS5719744B2 publication Critical patent/JPS5719744B2/ja
Granted legal-status Critical Current

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  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE: To provide an unrefined high tensile steel with enhanced toughness and tensile strength in the weld bond zone and superior weldability by specifying the amt. of C, Si, Mn, Cr, V, Ti, Al, N, etc. to be added to a low C-Mn-Cr steel.
CONSTITUTION: A steel consisting of C; 0.01W0,09%, Si; 0.1W0.8%, Mn; 1.1W 2.5%, V; 0.02W2.1%, Ti; 0.005W0.05%, Al; 0.001W0.1%, N; 0.002W0.015%, and the balance iron and impurities, or further contg. Ni≤2.5% or B; 0.0005W 0.005% if necessary. The addn. of a limited amt. of V esp. features this steel. V is easily dissolved in austenite unlike Nb, and a change in hardness due to cooling rate is decreased. Although this steel has a tensile strength above 60 kg/mm2, it can be welded without being preheated, and toughness in the weld heat-affected zone is enhanced.
COPYRIGHT: (C)1979,JPO&Japio
JP599278A 1978-01-23 1978-01-23 Unrefined high tensile steel with superior weldability Granted JPS5499032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP599278A JPS5499032A (en) 1978-01-23 1978-01-23 Unrefined high tensile steel with superior weldability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP599278A JPS5499032A (en) 1978-01-23 1978-01-23 Unrefined high tensile steel with superior weldability

Publications (2)

Publication Number Publication Date
JPS5499032A true JPS5499032A (en) 1979-08-04
JPS5719744B2 JPS5719744B2 (en) 1982-04-24

Family

ID=11626275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP599278A Granted JPS5499032A (en) 1978-01-23 1978-01-23 Unrefined high tensile steel with superior weldability

Country Status (1)

Country Link
JP (1) JPS5499032A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63111160A (en) * 1986-10-30 1988-05-16 Nkk Corp High toughness non-heattreated steel for hot forging

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123423A (en) * 1974-08-22 1976-02-25 Kawasaki Steel Co Jinseinoryokona hichoshitsukochoryokuko

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123423A (en) * 1974-08-22 1976-02-25 Kawasaki Steel Co Jinseinoryokona hichoshitsukochoryokuko

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63111160A (en) * 1986-10-30 1988-05-16 Nkk Corp High toughness non-heattreated steel for hot forging

Also Published As

Publication number Publication date
JPS5719744B2 (en) 1982-04-24

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