JPS5528331A - Manufacture of hot rolled steel plate of high cleanliness and low yield ratio - Google Patents

Manufacture of hot rolled steel plate of high cleanliness and low yield ratio

Info

Publication number
JPS5528331A
JPS5528331A JP10008378A JP10008378A JPS5528331A JP S5528331 A JPS5528331 A JP S5528331A JP 10008378 A JP10008378 A JP 10008378A JP 10008378 A JP10008378 A JP 10008378A JP S5528331 A JPS5528331 A JP S5528331A
Authority
JP
Japan
Prior art keywords
steel
hot rolled
manufacture
steel plate
rolled steel
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
JP10008378A
Other languages
Japanese (ja)
Other versions
JPS5940203B2 (en
Inventor
Yukio Yoshimoto
Hiroaki Masui
Shigeaki Ogibayashi
Ichiro Otsu
Koji Kawamura
Shunta Naito
Mitsuo Kakizaki
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 JP53100083A priority Critical patent/JPS5940203B2/en
Publication of JPS5528331A publication Critical patent/JPS5528331A/en
Publication of JPS5940203B2 publication Critical patent/JPS5940203B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Sheet Steel (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To manufacture the title plate by adding Al to steel at the time of discharge from a converter to combine the Al with O in the steel after which the steel is degassed, formed into a slab of a specified compsn. contg. C, Si, Mn, Al, S, O and Nb and/or Ti, and hot rolled.
CONSTITUTION: When steel refined in a converter is discharged, Al is added in an amt. of 1.0W2.0 kg/t of molten steel and well combined with O in the steel. The steel is then degassed. Since Al2O3 floats at the time of the degassing, alumina cluster left in the steel is remarkably reduced. The degassed steel is formed into a slab consisting of C 0.15W0.25%, Si 0.05W0.25%, Mn 0.60W1.00%, Al 0.005W 0.030%, S≤0.015%, 0≤0.0030%, Nb and/or Ti 0.005W0.025%, and the balance Fe and inevitable impurities, and satisfying Mn%/C%=3.0W6.0 and Mn%/Si%= 3.0W9.0. Thereafter the slab is hot rolled.
COPYRIGHT: (C)1980,JPO&Japio
JP53100083A 1978-08-18 1978-08-18 Manufacturing method of high cleanliness, low yield ratio hot rolled steel sheet Expired JPS5940203B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53100083A JPS5940203B2 (en) 1978-08-18 1978-08-18 Manufacturing method of high cleanliness, low yield ratio hot rolled steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53100083A JPS5940203B2 (en) 1978-08-18 1978-08-18 Manufacturing method of high cleanliness, low yield ratio hot rolled steel sheet

Publications (2)

Publication Number Publication Date
JPS5528331A true JPS5528331A (en) 1980-02-28
JPS5940203B2 JPS5940203B2 (en) 1984-09-28

Family

ID=14264538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53100083A Expired JPS5940203B2 (en) 1978-08-18 1978-08-18 Manufacturing method of high cleanliness, low yield ratio hot rolled steel sheet

Country Status (1)

Country Link
JP (1) JPS5940203B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4851054A (en) * 1982-05-18 1989-07-25 Kabushiki Kaisha Kobe Seiko Sho Method of producing rolled steel having excellent resistance to sulfide stress corrosion cracking
JPH0551699A (en) * 1991-05-08 1993-03-02 Sumitomo Metal Ind Ltd High toughness seamless steel pipe
JPH0563379U (en) * 1992-02-03 1993-08-24 シンコハンガー株式会社 Clothes hanger cover

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121202U (en) * 1986-01-25 1987-08-01
JPS63110401U (en) * 1987-01-08 1988-07-15

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4851054A (en) * 1982-05-18 1989-07-25 Kabushiki Kaisha Kobe Seiko Sho Method of producing rolled steel having excellent resistance to sulfide stress corrosion cracking
JPH0551699A (en) * 1991-05-08 1993-03-02 Sumitomo Metal Ind Ltd High toughness seamless steel pipe
JPH0563379U (en) * 1992-02-03 1993-08-24 シンコハンガー株式会社 Clothes hanger cover

Also Published As

Publication number Publication date
JPS5940203B2 (en) 1984-09-28

Similar Documents

Publication Publication Date Title
JPS55158252A (en) Cold rolled nonoriented electrical steel sheet of low iron loss
JPS56123356A (en) Ferritic stainless steel with superior formability
JPS56142852A (en) High strength cold rolled steel plate of low yield ratio for deep drawing
JPS55115928A (en) Production of non-aging cold rolled steel plate of excellent deep drawability
JPS5528331A (en) Manufacture of hot rolled steel plate of high cleanliness and low yield ratio
JPS5792129A (en) Production of nonrefined high toughness steel
JPS54110119A (en) Manufacture of line pipe steel with superior hydrogen induced cracking resistance
JPS5550451A (en) Aluminum alloy for high strength die cast
JPS558409A (en) Nondirectional magnetic steel plate of low watt loss
JPS572857A (en) Aluminum alloy for die casting
JPS56105460A (en) Low-carbon low-sulfur free cutting steel and production thereof
JPS57126950A (en) Production of killed steel ingot for hot rolling
JPS55156647A (en) Continuous casting of slab for cold rolled steel plate
JPS5735659A (en) Damping al alloy with high damping capacity and its manufacture
JPS56136956A (en) Cold rolled steel plate having superior bendability due to continuous annealing
JPS56139616A (en) Surface detect improving method of steel plate for concentrated nitric acid
JPS56166359A (en) Tough aluminum alloy for die casting
JPS5521517A (en) Manufacture of hot-rolled coil
JPS55141550A (en) Structural steel with low anisotropy of mechanical properties and superior machinability, and its manufacture by continuous casting
JPS55141549A (en) Cold forging steel with superior machinability and its manufacture
JPS5371614A (en) Manufacture of low alloy steel
JPS5518537A (en) Preparation of aluminum base alloy for impact extrusion excellent in ductility and impact extrusion tube
JPS54135611A (en) Refining method for caterpiller graphite cast iron
JPS55119152A (en) Nonrefined high tensile steel plate with low yield ratio
JPS5582736A (en) Alloy for hearth member with improved scale seizability