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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
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?
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
Finally. Now I know too much.
Nick,
Respect.
That would explain why the stay "nice" after a polishing for so long.
Per
Make that Respecta!!! *best Ali G impression*Quote:
Originally posted by silver911
Nick,
Respect.
:)
Sprint.