JPS558486A - Forged steel material for heavy gauge excellent in strength and toughness - Google Patents

Forged steel material for heavy gauge excellent in strength and toughness

Info

Publication number
JPS558486A
JPS558486A JP8233178A JP8233178A JPS558486A JP S558486 A JPS558486 A JP S558486A JP 8233178 A JP8233178 A JP 8233178A JP 8233178 A JP8233178 A JP 8233178A JP S558486 A JPS558486 A JP S558486A
Authority
JP
Japan
Prior art keywords
toughness
strength
heavy gauge
forged steel
steel material
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
JP8233178A
Other languages
Japanese (ja)
Other versions
JPS5744743B2 (en
Inventor
Tomio Takagi
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen 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 Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP8233178A priority Critical patent/JPS558486A/en
Publication of JPS558486A publication Critical patent/JPS558486A/en
Publication of JPS5744743B2 publication Critical patent/JPS5744743B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: The above mentioned forged steel improved the strength and toughness, by increasing the quantity of C, adding V and containing Si, Mn, Ni, Cr, Mo, Al (Sol) as specific constitutions and less than a specific content of P and S as impurities.
CONSTITUTION: C;0.33W0.40%, Si;≤0.50%, Mn;0.40W0.80%, Ni;2.50W4.00%, Cr;2.00W3.00%, Mo;0.2W0.7%, V;0.05W0.25%, Al(Sol) 0.01W0.06% by weight, are added to the main component Fe and each P and S is contained less than 0.030% as impurities. Steel ingot having the above constituent, is made by melting and tensile strength is reached more than 100kg/mm2 by carrying out hot forgoing. Heavy gauge forged product more than 100mm thickness having an excellent toughness, is able to obtain.
COPYRIGHT: (C)1980,JPO&Japio
JP8233178A 1978-07-05 1978-07-05 Forged steel material for heavy gauge excellent in strength and toughness Granted JPS558486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8233178A JPS558486A (en) 1978-07-05 1978-07-05 Forged steel material for heavy gauge excellent in strength and toughness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8233178A JPS558486A (en) 1978-07-05 1978-07-05 Forged steel material for heavy gauge excellent in strength and toughness

Publications (2)

Publication Number Publication Date
JPS558486A true JPS558486A (en) 1980-01-22
JPS5744743B2 JPS5744743B2 (en) 1982-09-22

Family

ID=13771568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8233178A Granted JPS558486A (en) 1978-07-05 1978-07-05 Forged steel material for heavy gauge excellent in strength and toughness

Country Status (1)

Country Link
JP (1) JPS558486A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070166A (en) * 1983-09-26 1985-04-20 Hitachi Ltd Creep and oxidation resistant low-alloy steel
JPS61235543A (en) * 1985-04-05 1986-10-20 Kobe Steel Ltd Low alloy steel excelling in stress corrosion cracking resistance
US4820486A (en) * 1985-04-05 1989-04-11 Kabushiki Kaisha Kobe Seiko Sho Low alloy steel having good stress corrosion cracking resistance
JP2010248540A (en) * 2009-04-10 2010-11-04 Kobe Steel Ltd Integrated crankshaft and method for manufacturing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970585A (en) * 1982-10-15 1984-04-21 Hitachi Ltd Printing head

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070166A (en) * 1983-09-26 1985-04-20 Hitachi Ltd Creep and oxidation resistant low-alloy steel
JPH021901B2 (en) * 1983-09-26 1990-01-16 Hitachi Ltd
JPS61235543A (en) * 1985-04-05 1986-10-20 Kobe Steel Ltd Low alloy steel excelling in stress corrosion cracking resistance
US4820486A (en) * 1985-04-05 1989-04-11 Kabushiki Kaisha Kobe Seiko Sho Low alloy steel having good stress corrosion cracking resistance
JPH0553859B2 (en) * 1985-04-05 1993-08-11 Kobe Steel Ltd
JP2010248540A (en) * 2009-04-10 2010-11-04 Kobe Steel Ltd Integrated crankshaft and method for manufacturing the same

Also Published As

Publication number Publication date
JPS5744743B2 (en) 1982-09-22

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