GB431469A - Improvements in and relating to rustless iron alloys - Google Patents

Improvements in and relating to rustless iron alloys

Info

Publication number
GB431469A
GB431469A GB33594/33A GB3359433A GB431469A GB 431469 A GB431469 A GB 431469A GB 33594/33 A GB33594/33 A GB 33594/33A GB 3359433 A GB3359433 A GB 3359433A GB 431469 A GB431469 A GB 431469A
Authority
GB
United Kingdom
Prior art keywords
per cent
carbon
low
vanadium
molybdenum
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
GB33594/33A
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.)
ALLOY RES CORP
Original Assignee
ALLOY RES 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 ALLOY RES CORP filed Critical ALLOY RES CORP
Publication of GB431469A publication Critical patent/GB431469A/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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

A rustless iron alloy of inherently fine grain structure comprises 10 to 30 per cent of chromium, 0,06 to 0,09 per cent of carbon and 0,09 to 0,2 per cent of nitrogen, with or without up to 3 per cent of one or more of nickel, molybdenum, tungsten, vanadium, copper, the balance being substantially iron: small amounts of manganese and silicon may be present. Rustless steel scrap, low-carbon scrap iron, and low-carbon ferrochrome may be melted in an induction furnace and brought to the desired temperature and condition of refinement, after which nitrogen is caused to flow through the melting chamber for a period of fifteen minutes to one hour or more: the composition is then finally adjusted, as by adding a small amount of low-carbon ferrochrome with or without additions of nickel, molybdenum, tungsten, vanadium, and copper.
GB33594/33A 1932-12-03 1933-11-30 Improvements in and relating to rustless iron alloys Expired GB431469A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US431469XA 1932-12-03 1932-12-03

Publications (1)

Publication Number Publication Date
GB431469A true GB431469A (en) 1935-07-01

Family

ID=21925730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33594/33A Expired GB431469A (en) 1932-12-03 1933-11-30 Improvements in and relating to rustless iron alloys

Country Status (1)

Country Link
GB (1) GB431469A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553706A (en) * 1947-01-31 1951-05-22 Armco Steel Corp Stainless steel spring
DE1193076B (en) * 1956-10-04 1965-05-20 Allegheny Ludlum Steel Heat treatment process for stainless steels
DE1195782B (en) * 1956-11-05 1965-07-01 Allegheny Ludlum Steel Process for the heat treatment of stainless austenitic steels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553706A (en) * 1947-01-31 1951-05-22 Armco Steel Corp Stainless steel spring
DE1193076B (en) * 1956-10-04 1965-05-20 Allegheny Ludlum Steel Heat treatment process for stainless steels
DE1195782B (en) * 1956-11-05 1965-07-01 Allegheny Ludlum Steel Process for the heat treatment of stainless austenitic steels

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