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Thread: composition of Fuchs rims

  1. #1

    composition of Fuchs rims

    A rather daft discussion has been going on on PP regarding the composition of Fuchs rims. Here is the response that I got from the manufacturers, Otto Fuchs.

    Q: Can you tell me what aluminium alloy was used in the Fuchs Porsche rims of the 60s and 70s?

    A: We used 6082(USA), 3.2315(DIN), AlMgSi1(Type) or FUCHS Designation AS10.62,
    .62 indicates Temper Disignation.
    Best regards Joachim Boehme
    Nick Moss - Early 911S #476 - RGruppe #318 -

  2. #2
    Thanks...good information. Not that I understand much beyond that they are forged aluminum. Perhaps some metalurgist could weigh in, explain in terms we commoners could understand?
    Paul D. Early S Registry #8 - Cyclops Minister of West Coast Affairs
    "Now, to put a water-cooled engine in the rear and to have the radiator in the front, that's not very intelligent." -Ferry Porsche (PANO, Oct. 1973)

  3. #3
    EN AW-6082, 3.2315

    typical mechanical properties

    0,2% Yield strength Rp 0,2 240-310 MPa

    Ultimate tensile strength Rm 250 MPa

    Elongation A5 8-10 %

    Hardness 91 HB

    physical properties

    Density 2,7 g/cm³

    good welding properties

    very good anticorrosion properties

    good anodizing properties

    good drilling and turning properties

    alloy: AlSiMgMn (former AlMgSi1)
    Temper: T651 stress relieved by stretching ,heat-treatable

    Composition %: Al 96.5, Mg > 0.64, Si > 0.7
    Nick Moss - Early 911S #476 - RGruppe #318 -

  4. #4
    Finally. Now I know too much.
    '66 912
    '50 VW Bug
    '89 VW syncro Tristar Doka
    '83 VW Westfalia

  5. #5
    Senior Member
    Join Date
    Jan 2003


  6. #6


    That would explain why the stay "nice" after a polishing for so long.


  7. #7
    Originally posted by silver911

    Make that Respecta!!! *best Ali G impression*


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