GB1091849A - Improvements in or relating to alloy steels and their manufacture - Google Patents

Improvements in or relating to alloy steels and their manufacture

Info

Publication number
GB1091849A
GB1091849A GB3328065A GB3328065A GB1091849A GB 1091849 A GB1091849 A GB 1091849A GB 3328065 A GB3328065 A GB 3328065A GB 3328065 A GB3328065 A GB 3328065A GB 1091849 A GB1091849 A GB 1091849A
Authority
GB
United Kingdom
Prior art keywords
steels
relating
manufacture
powdered
alloy steels
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
GB3328065A
Inventor
Geoffrey Machin Gill
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.)
BRITISH STEEL CASTINGS RES ASS
Original Assignee
BRITISH STEEL CASTINGS RES ASS
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 BRITISH STEEL CASTINGS RES ASS filed Critical BRITISH STEEL CASTINGS RES ASS
Priority to GB3328065A priority Critical patent/GB1091849A/en
Publication of GB1091849A publication Critical patent/GB1091849A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0006—Adding metallic additives
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N

Landscapes

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

Abstract

An austenitic alloy steel is given a fine grain size by adding to the casting stream a powdered compound containing nitrogen. The steels may be Ni-Cr or Ni-Cr-Mo stainless steels or manganese steels and the added compound may be Cr, Mn or Fe nitrides, calcium cyanamide, high nitrogen Fe-Cr or Ni having nitrogen absorbed thereon (e.g. by heating powdered Ni in an atmosphere of ammonia). The powdered compound may be added in an inert gas (A or N2) stream.
GB3328065A 1965-08-04 1965-08-04 Improvements in or relating to alloy steels and their manufacture Expired GB1091849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3328065A GB1091849A (en) 1965-08-04 1965-08-04 Improvements in or relating to alloy steels and their manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3328065A GB1091849A (en) 1965-08-04 1965-08-04 Improvements in or relating to alloy steels and their manufacture

Publications (1)

Publication Number Publication Date
GB1091849A true GB1091849A (en) 1967-11-22

Family

ID=10350878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3328065A Expired GB1091849A (en) 1965-08-04 1965-08-04 Improvements in or relating to alloy steels and their manufacture

Country Status (1)

Country Link
GB (1) GB1091849A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000043562A1 (en) * 1999-01-23 2000-07-27 Noel Village (Steel Founder) Ltd Stainless steels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000043562A1 (en) * 1999-01-23 2000-07-27 Noel Village (Steel Founder) Ltd Stainless steels
US6632395B1 (en) 1999-01-23 2003-10-14 The Village Partnership Llp Stainless steels

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