GB1344875A - High-tensile strength steels and process for producing the same - Google Patents

High-tensile strength steels and process for producing the same

Info

Publication number
GB1344875A
GB1344875A GB2559971A GB2559971A GB1344875A GB 1344875 A GB1344875 A GB 1344875A GB 2559971 A GB2559971 A GB 2559971A GB 2559971 A GB2559971 A GB 2559971A GB 1344875 A GB1344875 A GB 1344875A
Authority
GB
United Kingdom
Prior art keywords
steel
tensile strength
range
producing
same
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.)
Expired
Application number
GB2559971A
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
Publication of GB1344875A publication Critical patent/GB1344875A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

1344875 Alloys NIPPON STEEL CORP 19 April 1971 [26 March 1970 15 Oct 1970] 25599/71 Heading C7A A high tensile strength steel comprises Al (acid soluble) 0À0005-0À1% C 0À03-0À23% Mu 0À5-2% N 0À003-0À012% Si 0À02-0À8% Ti 0À004-0À07% B 0-0À006% V 0 or 0À02-0À2% Ni 0-5% Cu 0-2% Cr 0-0À35% Mo 0-0À35% with balance Fe. Preferably more than 0À004% of the steel is Ti in the form of Ti N particles less than 0À05Á in diameter and the acid insoluble N content is greater then 0À005%. If the steel is cooled from pouring to 1100‹C. at less than 5‹C . /min it should subsequently be heated above 1050‹C. once only, preferably in the range 1050- 1250‹C. on the other hand if the cooling rate from pouring to 1100‹C. is greater than 5‹C. /min the steel may subsequently be heated once in the range 1100-1250‹C. The steel may be normalized at 890-920‹C., hardened from a temperature in the range 850-950‹C. and tempered at 500-690‹C. The steel is particularly suitable for automatic welding at heat inputs greater than 50,000 3/cm.
GB2559971A 1970-03-26 1971-04-19 High-tensile strength steels and process for producing the same Expired GB1344875A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2504270A JPS5144088B1 (en) 1970-03-26 1970-03-26

Publications (1)

Publication Number Publication Date
GB1344875A true GB1344875A (en) 1974-01-23

Family

ID=12154842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2559971A Expired GB1344875A (en) 1970-03-26 1971-04-19 High-tensile strength steels and process for producing the same

Country Status (2)

Country Link
JP (1) JPS5144088B1 (en)
GB (1) GB1344875A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195658A (en) * 1986-09-11 1988-04-13 British Steel Corp Production of steel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6180711U (en) * 1984-10-31 1986-05-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195658A (en) * 1986-09-11 1988-04-13 British Steel Corp Production of steel

Also Published As

Publication number Publication date
JPS5144088B1 (en) 1976-11-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee