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GB1390011A - Ferrous alloys - Google Patents

Ferrous alloys

Info

Publication number
GB1390011A
GB1390011A GB2631672A GB2631672A GB1390011A GB 1390011 A GB1390011 A GB 1390011A GB 2631672 A GB2631672 A GB 2631672A GB 2631672 A GB2631672 A GB 2631672A GB 1390011 A GB1390011 A GB 1390011A
Authority
GB
United Kingdom
Prior art keywords
cast iron
june
cooling
heat treatment
martensite
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
GB2631672A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1390011A publication Critical patent/GB1390011A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/20—Disintegrating members
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/06—Cast-iron alloys containing chromium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/12—Fire-bars

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Crushing And Grinding (AREA)
  • Heat Treatment Of Articles (AREA)
  • Powder Metallurgy (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

1390011 Cast iron M FELTZ 6 June 1972 [29 June 1971] 26316/72 Heading C7A A wear-resistant ferrous alloy having the composition:-2.3 to 5.0% carbon, 33.0% to 51.0% chromium, 0.15% to 1.5% manganese, 0.15% to 1.5% silicon where 11#%Cr-8x%C#16 is heat treated so as to form an alloy constituted by a martensitic solid solution without ferrite and containing eutectic and hyper-eutectic carbides, but free of secondary carbides and said alloys having a hardness equal to or greater than Rc60 of the Rockwell 'C' scale. The heat treatment involves heating the cast iron and maintaining it at a temperature ranging from 1025‹C to 1150‹C for 1 to 5 hours to form austenite, then cooling the cast iron by blown or still air to form martensite. After martensite formation a stress-relief treatment may be carried out between 100‹C and 300‹C and residual austenite present may be reduced by a tempering heat treatment between 450‹C and 550 C, or cooling to a low temperature which may be down to - 200‹C.
GB2631672A 1971-06-29 1972-06-06 Ferrous alloys Expired GB1390011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU63431 1971-06-29

Publications (1)

Publication Number Publication Date
GB1390011A true GB1390011A (en) 1975-04-09

Family

ID=19726749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2631672A Expired GB1390011A (en) 1971-06-29 1972-06-06 Ferrous alloys

Country Status (15)

Country Link
US (1) US3834950A (en)
JP (1) JPS527406B1 (en)
AU (1) AU470081B2 (en)
BE (1) BE785431A (en)
BR (1) BR7204244D0 (en)
CA (1) CA990105A (en)
DE (1) DE2230864C3 (en)
FI (1) FI60241C (en)
GB (1) GB1390011A (en)
IT (1) IT959133B (en)
LU (1) LU63431A1 (en)
NO (1) NO131301C (en)
OA (1) OA04125A (en)
SE (1) SE408806C (en)
ZA (1) ZA723826B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017219098A1 (en) * 2016-06-24 2017-12-28 Weir Minerals Australia Ltd Erosion and corrosion resistant white cast irons

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE785255A (en) * 1972-06-22 1972-10-16 Soudure Autogene Elect ELECTRIC ARC CHARGING ALLOYS AS WELL AS COATED ELECTRODES, FILLED WIRES OR POWDER WELDING TO BE USED TO OBTAIN THEM.
WO1979000274A1 (en) * 1977-11-11 1979-05-17 Fischer Ag Georg Manufacturing process of metal pieces made of alloy cast iron exposed to wear
ZA844074B (en) * 1983-05-30 1986-04-30 Vickers Australia Ltd Abrasion resistant materials
US4547221A (en) * 1984-10-26 1985-10-15 Norman Telfer E Abrasion-resistant refrigeration-hardenable ferrous alloy
JPS6347665A (en) * 1986-08-14 1988-02-29 コントロン　インスツルメンツ　ホールディング　エヌ．ブイ． Method and device for operating pipet
AU636902B2 (en) * 1989-08-04 1993-05-13 Warman International Limited A ferrochromium alloy
CA2037921C (en) * 1989-08-04 2006-11-21 Kevin Francis Dolman Ferrochromium alloy
DE59005683D1 (en) * 1990-01-22 1994-06-16 Sulzer Innotec Ag Coated metallic substrate.
US6165288A (en) * 1994-05-17 2000-12-26 Ksb Aktienegsellschaft Highly corrosion and wear resistant chilled casting
US8430075B2 (en) * 2008-12-16 2013-04-30 L.E. Jones Company Superaustenitic stainless steel and method of making and use thereof
US9284631B2 (en) * 2014-05-16 2016-03-15 Roman Radon Hypereutectic white iron alloys comprising chromium and nitrogen and articles made therefrom
US9580777B1 (en) 2016-02-08 2017-02-28 Roman Radon Hypereutectic white iron alloys comprising chromium, boron and nitrogen and articles made therefrom
RU2663950C1 (en) * 2018-01-09 2018-08-13 Юлия Алексеевна Щепочкина Alloy
BE1027395B1 (en) * 2020-01-16 2021-01-29 Magotteaux Int FORGED CRUSH BALLS FOR SEMI-AUTOGENIC CRUSHERS
CN113025874B (en) * 2021-03-29 2022-07-19 北京工业大学 Hypereutectic high-chromium cast iron and inoculation modification treatment method thereof
CN113897475A (en) * 2021-07-20 2022-01-07 宁国市华丰耐磨材料有限公司 High-chromium grinding ball stage quenching heat treatment process
US12084732B2 (en) 2022-03-29 2024-09-10 Townley Foundry & Machine Co., Inc. Hypereutectic white iron alloy comprising chromium, boron and nitrogen and cryogenically hardened articles made therefrom

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017219098A1 (en) * 2016-06-24 2017-12-28 Weir Minerals Australia Ltd Erosion and corrosion resistant white cast irons
EA036277B1 (en) * 2016-06-24 2020-10-21 Вейр Минералс Австралия Лтд Erosion and corrosion resistant white cast irons
US11873545B2 (en) 2016-06-24 2024-01-16 Weir Minerals Australia Ltd. Erosion and corrosion resistant white cast irons

Also Published As

Publication number Publication date
DE2230864C3 (en) 1978-12-14
AU470081B2 (en) 1973-12-13
ZA723826B (en) 1974-02-27
SE408806C (en) 1981-03-16
LU63431A1 (en) 1973-01-22
IT959133B (en) 1973-11-10
FI60241C (en) 1981-12-10
JPS527406B1 (en) 1977-03-02
DE2230864A1 (en) 1973-01-18
FI60241B (en) 1981-08-31
CA990105A (en) 1976-06-01
BE785431A (en) 1972-12-27
NO131301B (en) 1975-01-27
OA04125A (en) 1979-11-30
AU4316372A (en) 1973-12-13
BR7204244D0 (en) 1973-05-24
SE408806B (en) 1979-07-09
DE2230864B2 (en) 1978-04-20
NO131301C (en) 1975-05-07
US3834950A (en) 1974-09-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years