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Re: Restoration Question 2: Duranium

Posted by bdk on Sat Mar 30, 2002 12:36:56 PM

In reply top Restoration Question 2: Duranium posted by Paul McMillan on Sat Mar 30, 2002 08:56:25 AM

I may be wrong, but isn't Duraluminum (or Dural) just clad aluminum (Alclad)?

Cladding is where they roll a thin layer of pure aluminum on the surfaces of the alloy for surface corrosion resistance. Cladding is just a process, and is thin enough to essentially have no effect on the strength of the sheet.

I don't know about in the UK, but in the US the old 24ST designation is now 2024 and 75ST is 7075. I think the new designations are ASTM standards. I can look into this further if anyone else can't find a difinitive answer.

BK

: We all know this was used before and during WW2. What is i
: ts' modern equilvent?? Is it like aluminium or is it somet
: hing else?

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