GB1039747A - Alloy steel - Google Patents

Alloy steel

Info

Publication number
GB1039747A
GB1039747A GB27749/65A GB2774965A GB1039747A GB 1039747 A GB1039747 A GB 1039747A GB 27749/65 A GB27749/65 A GB 27749/65A GB 2774965 A GB2774965 A GB 2774965A GB 1039747 A GB1039747 A GB 1039747A
Authority
GB
United Kingdom
Prior art keywords
cooling
impurities
martensite
alloy steel
alloy
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
GB27749/65A
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.)
Inco Ltd
Original Assignee
Inco 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 Inco Ltd filed Critical Inco Ltd
Publication of GB1039747A publication Critical patent/GB1039747A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten

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)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

A martensitic steel comprises <TABS:1039747/C6-C7/1> the balance, apart from impurities, being iron. Impurities mentioned are Cu, Co, S, P, H, N and O. The heat treatment may comprise:-homogenizing at 1150 DEG - 1290 DEG C. hot working and optionally cold working, and cooling to room temperatures to form martensite. If desired after the first cooling the alloy may be solution treated at 785 DEG -1040 DEG C. and again cooled to reform the martensite. In either case an ageing treatment at 425 DEG -540 DEG C.is then carried out. Complete martensitic transformation may be ensured by cooling to -75 DEG C.
GB27749/65A 1964-07-13 1965-06-30 Alloy steel Expired GB1039747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US382309A US3262777A (en) 1964-07-13 1964-07-13 Ultra tough maraging steel

Publications (1)

Publication Number Publication Date
GB1039747A true GB1039747A (en) 1966-08-24

Family

ID=23508401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27749/65A Expired GB1039747A (en) 1964-07-13 1965-06-30 Alloy steel

Country Status (8)

Country Link
US (1) US3262777A (en)
AT (1) AT261650B (en)
BE (1) BE666818A (en)
CH (1) CH449272A (en)
DE (1) DE1233148B (en)
GB (1) GB1039747A (en)
LU (1) LU49076A1 (en)
NL (1) NL6509043A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347663A (en) * 1964-09-23 1967-10-17 Int Nickel Co Precipitation hardenable stainless steel
US3342590A (en) * 1964-09-23 1967-09-19 Int Nickel Co Precipitation hardenable stainless steel
GB1070099A (en) * 1965-06-25 1967-05-24 Int Nickel Ltd Welding high-temperature alloys
US3392065A (en) * 1965-10-15 1968-07-09 Int Nickel Co Age hardenable nickel-molybdenum ferrous alloys
GB1142555A (en) * 1966-08-25 1969-02-12 Int Nickel Ltd Nickel-cobalt steels
US3899368A (en) * 1973-12-13 1975-08-12 Republic Steel Corp Low alloy, high strength, age hardenable steel
US4146409A (en) * 1977-06-06 1979-03-27 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Process for making a high toughness-high strength iron alloy
US4214902A (en) * 1979-01-25 1980-07-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration High toughness-high strength iron alloy
JPS59170244A (en) * 1983-03-16 1984-09-26 Mitsubishi Heavy Ind Ltd Strong and tough co-free maraging steel
US10378072B2 (en) * 2015-05-22 2019-08-13 Daido Steel Co., Ltd. Maraging steel
US10337079B2 (en) * 2015-05-22 2019-07-02 Daido Steel Co., Ltd. Maraging steel
WO2020018496A1 (en) 2018-07-18 2020-01-23 The Boeing Company Steel alloy and method for heat treating steel alloy components

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123506A (en) * 1964-03-03 Alloy steel and method
AT146720B (en) * 1931-06-23 1936-08-10 Krupp Ag Manufacture of objects that must have special strength properties, in particular high vibration resistance and / or should have high resistance to becoming brittle due to intergranular corrosion.
US2999039A (en) * 1959-09-14 1961-09-05 Allegheny Ludlum Steel Martensitic steel
US3151978A (en) * 1960-12-30 1964-10-06 Armco Steel Corp Heat hardenable chromium-nickel-aluminum steel
US3093519A (en) * 1961-01-03 1963-06-11 Int Nickel Co Age-hardenable, martensitic iron-base alloys
US3164497A (en) * 1963-02-08 1965-01-05 North American Aviation Inc Progressive slope aging process

Also Published As

Publication number Publication date
DE1233148B (en) 1967-01-26
AT261650B (en) 1968-05-10
NL6509043A (en) 1966-01-14
CH449272A (en) 1967-12-31
BE666818A (en)
LU49076A1 (en) 1965-09-13
US3262777A (en) 1966-07-26

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