FR2061701A1 - - Google Patents

Info

Publication number
FR2061701A1
FR2061701A1 FR6939191A FR6939191A FR2061701A1 FR 2061701 A1 FR2061701 A1 FR 2061701A1 FR 6939191 A FR6939191 A FR 6939191A FR 6939191 A FR6939191 A FR 6939191A FR 2061701 A1 FR2061701 A1 FR 2061701A1
Authority
FR
France
Prior art keywords
iron
alloy
give
carbide
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.)
Withdrawn
Application number
FR6939191A
Other languages
French (fr)
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.)
GONTERMANN PEIPERS GmbH
Original Assignee
GONTERMANN PEIPERS GmbH
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 GONTERMANN PEIPERS GmbH filed Critical GONTERMANN PEIPERS GmbH
Publication of FR2061701A1 publication Critical patent/FR2061701A1/fr
Withdrawn legal-status Critical Current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
    • C22C37/06—Cast-iron alloys containing chromium
    • C22C37/08—Cast-iron alloys containing chromium with nickel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • 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
    • C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

1339647 Iron alloys GONTERMANNPEIPERS GmbH 22 Jan 1971 3001/71 Heading C7A An iron alloy consisting of, ELEMENT WT% Cr 18.0 - 30.0 C 1.8 - 3.5 Mn 0.5 - 2.0 Ni 0.3 - 2.0 Mo 0.2 - 0.8 Si 0.3 - 0.8 S max. 0.03 P max. 0.04 where the total amount of S and P is not more than 0.06 wt per cent and the balance is iron, and impurity is melted in an arc furnace and cooled in an accelerated manner whereby a heterogeneous fine-grained structure is obtained in which the carbides C 23 C 6 , Cr 7 C 3 , Fe 4 Cr 3 C 3 , and Fe 3 C are present in a ferritic matrix. Up to eight chromium atoms of carbide C 23 C 6 can be replaced by iron to give, with maximum substitution, Fe 8 Cr 15 C 6 . Up to two of the Cr atoms in the carbide Cr 7 C 3 can be replaced by iron to give, with maximum substitution, Fe 2 Cr 5 C 3 . The carbide Fe 3 C may take up chromium and/or manganese. After cooling the alloy is then subjected to heat treatment to give a hardness of 55-90 Shore. The alloy is used for making rollers of rolling mills, or for making their outer shells which are of a thickness of 10-15% of the overall diameter of the rollers. In the latter case a mould is filled with the alloy, a specific example of which is given. The outer shell of the alloy hardens first, and the molten core is displaced by a molten core metal such as cast iron with a 2À8 wt per cent C content or toughened steel. The alloy may alternatively be cast round a heated shaft of steel with a C content of 0À3-0À8 wt per cent or of cast iron or of cast iron with spheroidal graphite. In all cases, the roller is given heat treatment to give a Shore hardness of 72-75.
FR6939191A 1969-09-15 1969-11-14 Withdrawn FR2061701A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19691946623 DE1946623B1 (en) 1969-09-15 1969-09-15 USE OF A HIGH CHROME ALLOY IRON ALLOY AS A MATERIAL FOR ROLLING MILL ROLLS
GB300171 1971-01-22

Publications (1)

Publication Number Publication Date
FR2061701A1 true FR2061701A1 (en) 1971-06-25

Family

ID=25757903

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6939191A Withdrawn FR2061701A1 (en) 1969-09-15 1969-11-14

Country Status (4)

Country Link
DE (1) DE1946623B1 (en)
FR (1) FR2061701A1 (en)
GB (1) GB1339647A (en)
NL (1) NL6917161A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345233A1 (en) * 1976-03-22 1977-10-21 Industrial Materials Tech Crack-resistant rolls for shaping metal - composed of compacted metal powder on sheathed tubular core
FR2382955A1 (en) * 1977-03-11 1978-10-06 Southwire Co METHOD AND DEVICE FOR HOT ROLLED NON-FERROUS METALS
EP0025394A1 (en) * 1979-09-07 1981-03-18 UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANCE par abréviation "USINOR" Composite compacting roll

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080198A (en) * 1977-02-24 1978-03-21 Abex Corporation Erosion and corrosion resistant alloys containing chromium, nickel and molybdenum
CA1162425A (en) * 1981-02-20 1984-02-21 Falconbridge Nickel Mines Limited Abrasion resistant, machinable white cast iron
DE3390167T1 (en) * 1982-07-19 1984-11-29 GIW Industries, Inc., Grovetown, Ga. Abrasion-resistant white cast
JPS60501958A (en) * 1983-10-24 1985-11-14 ジ−アイダブリユ．インダストリ−ス．インコ−ポレ−テツド Wear-resistant white cast iron
DE3643259A1 (en) * 1986-12-18 1988-07-07 Gontermann Peipers Gmbh WORKING ROLLER FROM COMPOSITE CASTING FOR A ROLLING MILL
JP5945935B2 (en) * 2012-05-16 2016-07-05 新東工業株式会社 High chromium wear resistant cast iron and method for producing the same
CN109609837A (en) * 2018-12-12 2019-04-12 国家电投集团黄河上游水电开发有限责任公司 Alloy material for carbon kneading mechanical reamer for aluminum

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345233A1 (en) * 1976-03-22 1977-10-21 Industrial Materials Tech Crack-resistant rolls for shaping metal - composed of compacted metal powder on sheathed tubular core
FR2382955A1 (en) * 1977-03-11 1978-10-06 Southwire Co METHOD AND DEVICE FOR HOT ROLLED NON-FERROUS METALS
EP0025394A1 (en) * 1979-09-07 1981-03-18 UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANCE par abréviation "USINOR" Composite compacting roll
FR2464741A1 (en) * 1979-09-07 1981-03-20 Usinor COMPACTION COMPOSITE CYLINDER

Also Published As

Publication number Publication date
NL6917161A (en) 1971-03-17
DE1946623B1 (en) 1971-06-24
GB1339647A (en) 1973-12-05

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Legal Events

Date Code Title Description
ST Notification of lapse