Quote:
Originally Posted by pdalek
My plate has mass 540 g and volume 200 ml by displacement (or 224 ml less holes -> ~ 200 by physical measurement)
Density works out at 2.7 which is the expected value for pure aluminium.
It just seems to be heavier than you expect.
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My Son is a pedant, he looked into it further and came up with a possible explanation
Aluminum bronze (3-10% Al) 7700 - 8700 Density (kg/m3)
Steel 7850 Density (kg/m3)
That sort of makes some sense and explains the weight of the mount. He lifted the weight/density description from the Engineering Toolbox (website)
http://www.engineeringtoolbox.com/me...ties-d_50.html
The weight of the mount is explained with Bronze as an alloy. The alloy must contain a heap of Bronze. Given OW's description, this seems to be the only sensible explanation.