GB1119854A - Heat-treatment of alloy cast iron - Google Patents

Heat-treatment of alloy cast iron

Info

Publication number
GB1119854A
GB1119854A GB25706/65A GB2570665A GB1119854A GB 1119854 A GB1119854 A GB 1119854A GB 25706/65 A GB25706/65 A GB 25706/65A GB 2570665 A GB2570665 A GB 2570665A GB 1119854 A GB1119854 A GB 1119854A
Authority
GB
United Kingdom
Prior art keywords
cast iron
treatment
heat
alloy cast
chromium
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
GB25706/65A
Inventor
Roger Kearsley Greenwood
Cedric George Westwood
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.)
Inco Ltd
Original Assignee
Inco 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 Inco Ltd filed Critical Inco Ltd
Priority to GB25706/65A priority Critical patent/GB1119854A/en
Priority to US556759A priority patent/US3414442A/en
Publication of GB1119854A publication Critical patent/GB1119854A/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

Landscapes

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

Abstract

White cast iron containing nickel and chromium and having a discontinuous carbide phase is heated at a temperature of at least 450 DEG C. to transform the as-cast austenite, and is then slowly cooled at not more than 50 DEG C./hour to 200 DEG C. or below, whereby the hardness is increased. The process is particularly applied to alloys containing in percentage by weight. .carbon.2.8 - 3.2 .silicon.1.5 - 2 .manganese.0.4 - 0.7 .nickel.5.5 - 6.5 .chromium.7.5 - 9 .iron and.balance .impurities.
GB25706/65A 1965-06-17 1965-06-17 Heat-treatment of alloy cast iron Expired GB1119854A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB25706/65A GB1119854A (en) 1965-06-17 1965-06-17 Heat-treatment of alloy cast iron
US556759A US3414442A (en) 1965-06-17 1966-06-10 Heat treatment of alloy cast iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25706/65A GB1119854A (en) 1965-06-17 1965-06-17 Heat-treatment of alloy cast iron

Publications (1)

Publication Number Publication Date
GB1119854A true GB1119854A (en) 1968-07-17

Family

ID=10231977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25706/65A Expired GB1119854A (en) 1965-06-17 1965-06-17 Heat-treatment of alloy cast iron

Country Status (2)

Country Link
US (1) US3414442A (en)
GB (1) GB1119854A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405749A1 (en) * 1977-10-14 1979-05-11 Thome Cromback Acieries NEW FORGED CRUSHING BODIES, ESPECIALLY CRUSHING BALLS, AND THEIR MANUFACTURING PROCESS
NL168883C (en) * 1977-12-08 1982-05-17 Estel Hoogovens Bv METHOD FOR HEAT TREATMENT OF A CAST IRON ARTICLE CONTAINING AT LEAST NICKEL AND CHROME
US4222793A (en) * 1979-03-06 1980-09-16 General Motors Corporation High stress nodular iron gears and method of making same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988910A (en) * 1926-10-21 1935-01-22 Int Nickel Co Chill cast iron alloy
US2353688A (en) * 1942-10-05 1944-07-18 Electro Metallurg Co Method of improving abrasion resistance of alloys
US2516524A (en) * 1948-03-20 1950-07-25 Int Nickel Co White cast iron
US2530545A (en) * 1949-08-06 1950-11-21 Int Nickel Co Hardenable cast iron
US2646375A (en) * 1950-11-20 1953-07-21 Int Nickel Co Process for hardening alloy gray cast iron
US2662011A (en) * 1951-08-20 1953-12-08 Int Nickel Co Abrasion and corrosion resistant white cast iron
GB727061A (en) * 1951-08-20 1955-03-30 Mond Nickel Co Ltd Improvements in white cast iron

Also Published As

Publication number Publication date
US3414442A (en) 1968-12-03

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