JPS56256A - Property-controlled steel excellent in welding crack sensitivity and having high tensile strength of 80kg/ 2 - Google Patents

Property-controlled steel excellent in welding crack sensitivity and having high tensile strength of 80kg/ 2

Info

Publication number
JPS56256A
JPS56256A JP7599779A JP7599779A JPS56256A JP S56256 A JPS56256 A JP S56256A JP 7599779 A JP7599779 A JP 7599779A JP 7599779 A JP7599779 A JP 7599779A JP S56256 A JPS56256 A JP S56256A
Authority
JP
Japan
Prior art keywords
steel
welding crack
content
tensile strength
property
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
JP7599779A
Other languages
Japanese (ja)
Inventor
Yutaka Kasamatsu
Chisato Ishioka
Kazuhiko Yano
Toshiaki Suga
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP7599779A priority Critical patent/JPS56256A/en
Publication of JPS56256A publication Critical patent/JPS56256A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding In General (AREA)

Abstract

PURPOSE: To prevent a welding crack from taking place in a steel even if it is preheated at a low temperature, by composing the steel of prescribed quantities of C, Si, Mn, Cr, Mo, V, B, Al and N and the rest of Fe and unavoidable impurities and limiting the Al content and N content of the steel at its quenching temperature.
CONSTITUTION: A steel, which comprises 0.04W0.09% of C, less than 0.55% of Si, 0.6W1.4% of Mn, more than 0.3% but not more than 1% of Cr, more than 0.3% but not more than 0.8% of Mo, less than 0.1% of V, 0.0005W0.002% of B, 0.04W0.1% of Al and 0.002W0.004% of N as indispensable constituents and the rest of Fe and unavoidable impurities and is 0.25 or less Pcm=C+1/30Si+1/20(Mn+ Cu+Cr)+1/60Ni+1/15Mo+1/10V+5B, is quenched and tempered so that the steel is changed into a high-tensile steel as described in the title. The Al content and N content of the steel at its quenching temperature (T°K) are limited as a formula shown. The tensile strength of this alloy steel is as high as 60kg/mm2. No welding crack takes place in the steel even if it is preheated at a service temperature or the like.
COPYRIGHT: (C)1981,JPO&Japio
JP7599779A 1979-06-15 1979-06-15 Property-controlled steel excellent in welding crack sensitivity and having high tensile strength of 80kg/ 2 Pending JPS56256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7599779A JPS56256A (en) 1979-06-15 1979-06-15 Property-controlled steel excellent in welding crack sensitivity and having high tensile strength of 80kg/ 2

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7599779A JPS56256A (en) 1979-06-15 1979-06-15 Property-controlled steel excellent in welding crack sensitivity and having high tensile strength of 80kg/ 2

Publications (1)

Publication Number Publication Date
JPS56256A true JPS56256A (en) 1981-01-06

Family

ID=13592429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7599779A Pending JPS56256A (en) 1979-06-15 1979-06-15 Property-controlled steel excellent in welding crack sensitivity and having high tensile strength of 80kg/ 2

Country Status (1)

Country Link
JP (1) JPS56256A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60121228A (en) * 1983-12-05 1985-06-28 Sumitomo Metal Ind Ltd Manufacture of tempered high tension steel plate
JPS62238356A (en) * 1986-04-08 1987-10-19 Kobe Steel Ltd Thick-walled high-tensile steel plate having superior toughness at welded joint

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241111A (en) * 1975-09-29 1977-03-30 Kawasaki Steel Corp Refining type low alloy high tension steel having excellent toughness of welded part with large heat input

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241111A (en) * 1975-09-29 1977-03-30 Kawasaki Steel Corp Refining type low alloy high tension steel having excellent toughness of welded part with large heat input

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60121228A (en) * 1983-12-05 1985-06-28 Sumitomo Metal Ind Ltd Manufacture of tempered high tension steel plate
JPS6352090B2 (en) * 1983-12-05 1988-10-18 Sumitomo Metal Ind
JPS62238356A (en) * 1986-04-08 1987-10-19 Kobe Steel Ltd Thick-walled high-tensile steel plate having superior toughness at welded joint

Similar Documents

Publication Publication Date Title
AU694456B2 (en) Austenitic alloys and use thereof
JPS55138056A (en) Refining free high strength forging steel
GR3003399T3 (en) Low alloy steels
JPS56105458A (en) Heat-resistant cast alloy
DE3572696D1 (en) Non-magnetic steel having high corrosion resistance and high strength for use as material of drill collar, and drill collar made of the steel
JPS5672156A (en) Low-alloy heat-resistant steel for high temperature use
JPS5616653A (en) Soft magnetic material having superior workability and machinability
JPS56256A (en) Property-controlled steel excellent in welding crack sensitivity and having high tensile strength of 80kg/ 2
JPS55145154A (en) Rail steel with low weld crack sensibility and thermal expansion coefficient
JPS5789426A (en) Manufacture of high-hardness and wear resistant steel having excellent weldability
JPS56163244A (en) Heat resistant austenite steel with superior hot workability and oxidation resistance
JPS55134156A (en) Steel products for oil well pipe having superior sulfide stress corrosion crack resistance and tensile strength of 60kg/mm2 or more
JPS56255A (en) Property-controlled steel excellent in welding crack sensitivity and having high tensile strength of 60kg/ 2
JPS575849A (en) Steel excellent in corrosion resistance for use as seamless steel pipe
JPS57188652A (en) High-strength austenite steel with superior cold work hardenability
JPS5428217A (en) Corrosion resistant high tensile aluminum alloy with superior workability
JPS5677365A (en) Die steel
ES8305049A1 (en) Low interstitial, corrosion resistant, weldable ferritic stainless steel and process for the manufacture thereof.
GB1137295A (en) Improved free-machining ferritic stainless steel
JPS5386610A (en) Aluminum alloy for casting
JPS55131159A (en) High tensile low alloy steel for steel pipe
Talarek et al. Quality Improvement of Round Bars Produced by the Electroslag Refining of High Speed Steel
JPS56123350A (en) High tensile steel for welded structure with superior weld crack resistance
SU1447927A1 (en) Steel
JPS53125216A (en) Low alloy steel of excellent cold forgeability for high strength bolt