GB1339437A - Steel for electrical applications - Google Patents

Steel for electrical applications

Info

Publication number
GB1339437A
GB1339437A GB5754770A GB5754770A GB1339437A GB 1339437 A GB1339437 A GB 1339437A GB 5754770 A GB5754770 A GB 5754770A GB 5754770 A GB5754770 A GB 5754770A GB 1339437 A GB1339437 A GB 1339437A
Authority
GB
United Kingdom
Prior art keywords
steel
dec
temperatures
electrical applications
upto
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
GB5754770A
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.)
United States Steel Corp
Original Assignee
United States 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 United States Steel Corp filed Critical United States Steel Corp
Publication of GB1339437A publication Critical patent/GB1339437A/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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

1339437 Alloys-oxidizing steels UNITED STATES STEEL CORP 3 Dec 1970 [5 Dec 1969] 57547/70 Addition to 1212024 Headings C7A and C7U A ductile steel has a non-oriented polycrystalline structure and consists of C upto 0À025%, Si 1À5-2À75%, Al 1À5-6À0% with the balance Fe and normal steel-making impurities and with the total content of Al + Si is 3-7À5% and the percentage of Al is greater than or equal to that of Si. The cast steel is hot rolled twice at temperatures of 2350-1600‹F. with a period of slow cooling in between, then quenched with a water spray and annealed at temperatures between 1400- 2100‹F. for from 3 mins. to 8 hours in an atmosphere of N 2 or H 2 or a mixture thereof containing sufficient water vapour to give a dew point between 30 and -26‹F. This final treatment produces a surface coating of a complex oxide of aluminium, silicon and iron which has a high resistance to electrical current flow.
GB5754770A 1969-12-05 1970-12-03 Steel for electrical applications Expired GB1339437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88272969A 1969-12-05 1969-12-05

Publications (1)

Publication Number Publication Date
GB1339437A true GB1339437A (en) 1973-12-05

Family

ID=25381222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5754770A Expired GB1339437A (en) 1969-12-05 1970-12-03 Steel for electrical applications

Country Status (5)

Country Link
US (1) US3657024A (en)
BE (1) BE759318R (en)
FR (1) FR2080886B2 (en)
GB (1) GB1339437A (en)
IT (1) IT943115B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040019271A1 (en) * 2002-07-29 2004-01-29 General Electric Company Pole pieces for magnetic resonance imaging systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US842403A (en) * 1906-11-08 1907-01-29 Robert Abbott Hadfield Magnetic alloy.
US2193768A (en) * 1932-02-06 1940-03-12 Kinzoku Zairyo Kenkyusho Magnetic alloys
US2300336A (en) * 1940-08-07 1942-10-27 Bell Telephone Labor Inc Magnetic alloy of iron and aluminum
US2873225A (en) * 1957-05-20 1959-02-10 Adams Edmond Magnetic flake core
US2970075A (en) * 1958-10-13 1961-01-31 Gen Electric Cast intermediate or blank and method of preparation

Also Published As

Publication number Publication date
FR2080886B2 (en) 1973-01-12
BE759318R (en) 1971-05-24
US3657024A (en) 1972-04-18
FR2080886A2 (en) 1971-11-26
IT943115B (en) 1973-04-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee