GB867934A - Improved ferrous metal and method of making it - Google Patents

Improved ferrous metal and method of making it

Info

Publication number
GB867934A
GB867934A GB42174/59A GB4217459A GB867934A GB 867934 A GB867934 A GB 867934A GB 42174/59 A GB42174/59 A GB 42174/59A GB 4217459 A GB4217459 A GB 4217459A GB 867934 A GB867934 A GB 867934A
Authority
GB
United Kingdom
Prior art keywords
melt
temperature
ferrous metal
boron
making
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
GB42174/59A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB867934A publication Critical patent/GB867934A/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
    • C22C37/00—Cast-iron alloys
    • C22C37/04—Cast-iron alloys containing spheroidal graphite
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/10—Cast-iron alloys containing aluminium or silicon

Abstract

A low-carbon high-silicon ferrous metal containing boron has a microstructure with carbon in the form of compacted graphite, and has a composition such that without boron it would solidify as a white cast iron; the metal has the following composition by weight:-C 1 to 2.5%, Si 1.5 to 3.2%, B 0.001 to 0.05%, with or without S 0 to 0.5%, and Mn with content 1.7 times S content plus 0.2%, with or without Te 0 to 0.01%, and Bi 0 to 0.02%, the total Te and/or Bi up to 0.02%, with Fe as balance. During the production, the melt (e.g. first of low carbon steel and white cast iron) is superheated to a temperature between 2900 DEG F. and 3100 DEG F., then preferably tapped into a ladle (where the boron with or without the Te and/or Bi may be added to the first melt) at a temperature between 2750 DEG F. and 2850 DEG F. and finally poured into a mould at a temperature between 2600 DEG F. and 2800 DEG F. (preferably 2700 DEG F.). The melt may be lanced with a dry gas (e.g. O2, N2, NH3 or A).
GB42174/59A 1958-12-29 1959-12-11 Improved ferrous metal and method of making it Expired GB867934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US867934XA 1958-12-29 1958-12-29

Publications (1)

Publication Number Publication Date
GB867934A true GB867934A (en) 1961-05-10

Family

ID=22200956

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42174/59A Expired GB867934A (en) 1958-12-29 1959-12-11 Improved ferrous metal and method of making it

Country Status (1)

Country Link
GB (1) GB867934A (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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