GB780115A - Production of malleable iron and boron-ferrosilicon alloys therefor - Google Patents

Production of malleable iron and boron-ferrosilicon alloys therefor

Info

Publication number
GB780115A
GB780115A GB26397/55A GB2639755A GB780115A GB 780115 A GB780115 A GB 780115A GB 26397/55 A GB26397/55 A GB 26397/55A GB 2639755 A GB2639755 A GB 2639755A GB 780115 A GB780115 A GB 780115A
Authority
GB
United Kingdom
Prior art keywords
iron
boron
charge
malleable iron
per cent
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
GB26397/55A
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.)
Dow Wilton Ltd
Original Assignee
Union Carbide 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 Union Carbide Ltd filed Critical Union Carbide Ltd
Publication of GB780115A publication Critical patent/GB780115A/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
    • C21C1/00—Refining of pig-iron; Cast iron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Powder Metallurgy (AREA)

Abstract

Malleable iron is produced by introducing into a cupola charge of iron a ferro silicon-boron alloy containing Si 15-90 per cent, B 0.01-0.2 per cent, Fe and incidental impurities the remainder, this alloy being present in the charge in sufficient amount to add to the iron 0.0005-0.003 per cent B, melting the charge and casting and then heat treating the iron. The iron after casting may be heated gradually to within the range 1600-1750 DEG F., held there for the required time and then cooled at a rate less than 10 DEG F. per hour through the transformation range to produce malleable iron free from pearlitic constituent.
GB26397/55A 1954-10-12 1955-09-15 Production of malleable iron and boron-ferrosilicon alloys therefor Expired GB780115A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US780115XA 1954-10-12 1954-10-12

Publications (1)

Publication Number Publication Date
GB780115A true GB780115A (en) 1957-07-31

Family

ID=22141372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26397/55A Expired GB780115A (en) 1954-10-12 1955-09-15 Production of malleable iron and boron-ferrosilicon alloys therefor

Country Status (1)

Country Link
GB (1) GB780115A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116585A (en) * 1982-02-27 1983-09-28 Ae Italy S P A Cast iron alloys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116585A (en) * 1982-02-27 1983-09-28 Ae Italy S P A Cast iron alloys

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