JPS5696013A - Production of carbonitride dispersed steel - Google Patents

Production of carbonitride dispersed steel

Info

Publication number
JPS5696013A
JPS5696013A JP17358379A JP17358379A JPS5696013A JP S5696013 A JPS5696013 A JP S5696013A JP 17358379 A JP17358379 A JP 17358379A JP 17358379 A JP17358379 A JP 17358379A JP S5696013 A JPS5696013 A JP S5696013A
Authority
JP
Japan
Prior art keywords
nitrogen
steel
molten steel
casting
carbonitride
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
JP17358379A
Other languages
Japanese (ja)
Other versions
JPS5725606B2 (en
Inventor
Ichiro Seta
Mutsuo Nakanishi
Norimoto Iwami
Yuichi Watanabe
Yasuyuki Saito
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP17358379A priority Critical patent/JPS5696013A/en
Publication of JPS5696013A publication Critical patent/JPS5696013A/en
Publication of JPS5725606B2 publication Critical patent/JPS5725606B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material

Abstract

PURPOSE:To easily manufacture a steel finely and uniformly dispersed with carbonitride therein by casting low-nitrogen molten steel of specific composition in an atmosphere of nitrogen or mixed atmosphere of nitrogen and inert gas. CONSTITUTION:The low-nitrogen molten steel of 0.002-0.15% C, <=0.5% Si, 0.5-2.4% Mn, 0.005-0.5% Ti, 0.005-0.10% SolAl, and <=0.004% N, satisfying C%+Mn%/6+Si%/24<=0.4 is prepared. This molten steel is cast by an ingotting method or continuous casting method in an atmosphere of nitrogen or mixed atmosphere of nitrogen and inert gas. Thereby, the nitrogen amount in the molten steel is increased to 0.004-0.0110% at the casting, and carbonitride is dispersed in the Al killed steel. This method is applied irrespective of steel kinds and the kinds of casting systems and carbonitrides.
JP17358379A 1979-12-29 1979-12-29 Production of carbonitride dispersed steel Granted JPS5696013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17358379A JPS5696013A (en) 1979-12-29 1979-12-29 Production of carbonitride dispersed steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17358379A JPS5696013A (en) 1979-12-29 1979-12-29 Production of carbonitride dispersed steel

Publications (2)

Publication Number Publication Date
JPS5696013A true JPS5696013A (en) 1981-08-03
JPS5725606B2 JPS5725606B2 (en) 1982-05-31

Family

ID=15963260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17358379A Granted JPS5696013A (en) 1979-12-29 1979-12-29 Production of carbonitride dispersed steel

Country Status (1)

Country Link
JP (1) JPS5696013A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109811255A (en) * 2019-01-14 2019-05-28 舞阳钢铁有限责任公司 A kind of large size A537CL2 steel ingot and its production method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0529708Y2 (en) * 1990-02-01 1993-07-29
JPH04107603U (en) * 1991-02-28 1992-09-17 斉顕 松下 sandals
JPH04325641A (en) * 1991-04-26 1992-11-16 Daido Steel Co Ltd Material with high young's modulus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936085A (en) * 1972-08-09 1974-04-03
JPS54155114A (en) * 1978-05-29 1979-12-06 Nippon Steel Corp Surface cracking prevention method for nb and v-containing steel ingot

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936085A (en) * 1972-08-09 1974-04-03
JPS54155114A (en) * 1978-05-29 1979-12-06 Nippon Steel Corp Surface cracking prevention method for nb and v-containing steel ingot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109811255A (en) * 2019-01-14 2019-05-28 舞阳钢铁有限责任公司 A kind of large size A537CL2 steel ingot and its production method

Also Published As

Publication number Publication date
JPS5725606B2 (en) 1982-05-31

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