Quote:
Originally Posted by UK6
Mike,
I suspect that the original aluminium would be very similar to the modern 3003 grade.
Brett
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The original was NS4H3 / 5251 , this is a magnesium alloy.I have talked with Bristol cars on this. 3003 is a manganese alloy and is softer but okay -- used a lot on panel vans and buses.
In my opinion the best quality to use would be 5083 "0" it is what I have supplied to RR for the new car bodywork. expensive of course.
5251 is 1.5% mg and 5083 is 4.5% mg the higher the magnesium the better the strength and corrosion resistance in this application.
I bet you wished you had never asked
