JPS57140859A - Steel for high heat input welding - Google Patents

Steel for high heat input welding

Info

Publication number
JPS57140859A
JPS57140859A JP2610881A JP2610881A JPS57140859A JP S57140859 A JPS57140859 A JP S57140859A JP 2610881 A JP2610881 A JP 2610881A JP 2610881 A JP2610881 A JP 2610881A JP S57140859 A JPS57140859 A JP S57140859A
Authority
JP
Japan
Prior art keywords
steel
high heat
heat input
input welding
sol
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
JP2610881A
Other languages
Japanese (ja)
Inventor
Itaru Watanabe
Makoto Yamada
Motoaki Suzuki
Koshiro Tsukada
Takanobu Tokunaga
Yoshitaka Yamazaki
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 JP2610881A priority Critical patent/JPS57140859A/en
Priority to GB8204967A priority patent/GB2099016B/en
Priority to FR8203202A priority patent/FR2500482B1/en
Priority to DE19823206977 priority patent/DE3206977A1/en
Priority to CA000397248A priority patent/CA1207564A/en
Publication of JPS57140859A publication Critical patent/JPS57140859A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding In General (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE: To enhance the toughness of the weld zone and the weld heat-affected zone of the resulting titled steel by providing a specified composition contg. C, Si, Mn, sol. Al and Ti as well as P, S and N in amounts reduced to the utmost and by regulating the carbon equiv.
CONSTITUTION: This steel for high heat input welding consists of 0.03W0.16% C, 0.01W0.7% Si, 0.7W1.7% Mn, ≤0.025% P, ≤0.015% S, 0.04W0.10% sol. Al, 0.001W0.012% Ti, ≤0.004% T.N and the balance Fe with inevitable impurities while holding the relation represented by expressionI. The steel may further contain one or more among ≤0.50% Cu, ≤1.5% Ni, ≤1.0% Cr, ≤0.5% Mo and ≤0.06% V. The carbon equiv. represented by expression II is regulated to ≥0.33. When this steel is welded with ≥100 kJ/cm high heat input per single layer, the heat-affected zone has a structure composed of proeutectoid ferrite and a transitional structure, and it is provided with superior toughness.
COPYRIGHT: (C)1982,JPO&Japio
JP2610881A 1981-02-26 1981-02-26 Steel for high heat input welding Pending JPS57140859A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2610881A JPS57140859A (en) 1981-02-26 1981-02-26 Steel for high heat input welding
GB8204967A GB2099016B (en) 1981-02-26 1982-02-19 Steel for welding with high heat input
FR8203202A FR2500482B1 (en) 1981-02-26 1982-02-26 STEEL FOR WELDING WITH HIGH ENJOYMENT ENERGY
DE19823206977 DE3206977A1 (en) 1981-02-26 1982-02-26 WELDABLE STEEL FOR LARGE HEAT SUPPLY
CA000397248A CA1207564A (en) 1981-02-26 1982-02-26 Steel for welding with high heat input

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2610881A JPS57140859A (en) 1981-02-26 1981-02-26 Steel for high heat input welding

Publications (1)

Publication Number Publication Date
JPS57140859A true JPS57140859A (en) 1982-08-31

Family

ID=12184390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2610881A Pending JPS57140859A (en) 1981-02-26 1981-02-26 Steel for high heat input welding

Country Status (1)

Country Link
JP (1) JPS57140859A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5080911A (en) * 1973-11-22 1975-07-01
JPS50130624A (en) * 1974-04-01 1975-10-16
JPS52114515A (en) * 1976-03-24 1977-09-26 Sumitomo Metal Ind Ltd Heat treatment type high tensile steel of low nitrogen content and containing titanium
JPS53146220A (en) * 1977-05-26 1978-12-20 Kawasaki Steel Co Method of producing tough steel for high efficiency welding use

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5080911A (en) * 1973-11-22 1975-07-01
JPS50130624A (en) * 1974-04-01 1975-10-16
JPS52114515A (en) * 1976-03-24 1977-09-26 Sumitomo Metal Ind Ltd Heat treatment type high tensile steel of low nitrogen content and containing titanium
JPS53146220A (en) * 1977-05-26 1978-12-20 Kawasaki Steel Co Method of producing tough steel for high efficiency welding use

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