GB1011794A - Process for producing a tough steel for low temperatures - Google Patents

Process for producing a tough steel for low temperatures

Info

Publication number
GB1011794A
GB1011794A GB23356/62A GB2335662A GB1011794A GB 1011794 A GB1011794 A GB 1011794A GB 23356/62 A GB23356/62 A GB 23356/62A GB 2335662 A GB2335662 A GB 2335662A GB 1011794 A GB1011794 A GB 1011794A
Authority
GB
United Kingdom
Prior art keywords
producing
low temperatures
treatment
aluminium nitride
tough 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.)
Expired
Application number
GB23356/62A
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.)
Yawata Iron and Steel Co Ltd
Original Assignee
Yawata Iron and Steel Co 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 Yawata Iron and Steel Co Ltd filed Critical Yawata Iron and Steel Co Ltd
Publication of GB1011794A publication Critical patent/GB1011794A/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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium

Abstract

Steel having good low temperature toughness and containing <TABS:1011794/C6-C7/1> the balance being iron and usual impurities, is treated at 600-700 DEG C. to precipitate aluminium nitride. The treatment may be applied to the material in the hot-rolled or forged condition, or may follow a treatment at 880-950 DEG C., the cooling rate from this range to below 600 DEG C. being sufficiently high to retain aluminium nitride in solution while at the same time producing a fine ferritic structure. A suitable range of cooling rates is 5-50 DEG C./sec.
GB23356/62A 1961-06-22 1962-06-18 Process for producing a tough steel for low temperatures Expired GB1011794A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2223761 1961-06-22

Publications (1)

Publication Number Publication Date
GB1011794A true GB1011794A (en) 1965-12-01

Family

ID=12077170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23356/62A Expired GB1011794A (en) 1961-06-22 1962-06-18 Process for producing a tough steel for low temperatures

Country Status (3)

Country Link
US (1) US3163565A (en)
DE (1) DE1433818B2 (en)
GB (1) GB1011794A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472707A (en) * 1964-04-09 1969-10-14 British Iron Steel Research Alloy steels
US3320099A (en) * 1964-08-12 1967-05-16 United States Steel Corp Method of processing steel
FR1515961A (en) * 1965-10-26 1968-03-08 Fuji Iron & Steel Co Ltd Manufacturing processes of high notch resistance steel for welded structures and new products thus obtained
US3539404A (en) * 1967-05-15 1970-11-10 Youngstown Sheet And Tube Co Method of making a low alloy steel
US3773500A (en) * 1970-03-26 1973-11-20 Nippon Steel Corp High tensile steel for large heat-input automatic welding and production process therefor
US3713812A (en) * 1970-08-03 1973-01-30 Steel Corp Ferritic stainless steels with improved drawability and resistance to ridging
DE4234192C2 (en) * 1992-10-10 1996-01-11 Gutehoffnungshuette Man Heavy-duty full wheels and wheel tires for rail traction vehicles and cars

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB808556A (en) * 1954-05-17 1959-02-04 Mannesmann Ag A process for the heat treatment of an unalloyed or low-alloy structural steel containing from 0.03% to 0.12% of aluminium nitride
GB786993A (en) * 1954-11-22 1957-11-27 Mannesmann Ag Improvements in or relating to low-alloy steels
US3028270A (en) * 1958-08-25 1962-04-03 Yawata Iron & Steel Co Production of high tensile strength, high notch toughness steel by low temperature anneal

Also Published As

Publication number Publication date
DE1433818A1 (en) 1968-11-28
US3163565A (en) 1964-12-29
DE1433818B2 (en) 1970-03-19

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