FR2078385A5 - Copper-based alloys - Google Patents

Copper-based alloys

Info

Publication number
FR2078385A5
FR2078385A5 FR7104299A FR7104299A FR2078385A5 FR 2078385 A5 FR2078385 A5 FR 2078385A5 FR 7104299 A FR7104299 A FR 7104299A FR 7104299 A FR7104299 A FR 7104299A FR 2078385 A5 FR2078385 A5 FR 2078385A5
Authority
FR
France
Prior art keywords
degrees
alloys
alloy
contain
copper
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
FR7104299A
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.)
Olin Corp
Original Assignee
Olin Corp
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 Olin Corp filed Critical Olin Corp
Application granted granted Critical
Publication of FR2078385A5 publication Critical patent/FR2078385A5/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
    • C22C9/00—Alloys based on copper
    • C22C9/04—Alloys based on copper with zinc as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Conductive Materials (AREA)

Abstract

The alloys for use as substitute for German silvers contain between 8 and 6% Mn and Zn % determined by the formula K - 2/3% Mn, where K is between 30.5 and 36.25; the alloy may also contain up to 3% Pb when improved machinability is required, e.g. for key blanks. Casting of the alloy is carried out below 1000 degrees C, and hot rolling below 850 degrees C. After cold rolling, annealing at a temp. between 400 degrees and 800 degrees C for 15 min. - 4 hrs. and cooling at a rate greater than 14 degrees C/hr. produces almost 100% alpha in the microstructure. Absence of Ni and the ability to hot work reduces the cost and improves the utility of these alloys.
FR7104299A 1970-02-09 1971-02-09 Copper-based alloys Expired FR2078385A5 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US999770A 1970-02-09 1970-02-09
US5580870A 1970-07-17 1970-07-17
US6527770A 1970-08-19 1970-08-19

Publications (1)

Publication Number Publication Date
FR2078385A5 true FR2078385A5 (en) 1971-11-05

Family

ID=27358947

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7104299A Expired FR2078385A5 (en) 1970-02-09 1971-02-09 Copper-based alloys

Country Status (4)

Country Link
BE (1) BE762702A (en)
CA (1) CA956147A (en)
DE (1) DE2104793A1 (en)
FR (1) FR2078385A5 (en)

Also Published As

Publication number Publication date
BE762702A (en) 1971-08-09
DE2104793A1 (en) 1971-08-26
CA956147A (en) 1974-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse