Thread: Mystery Metal
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Old June 18, 2012, 07:01 AM   #24
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Join Date: October 28, 2006
Location: South Central Michigan...near Ohio, Indiana.
Posts: 4,483
Ductility and malleability are not always coextensive – for instance, while gold is both ductile and malleable, lead is only malleable.

Rich, Jack C. (1988). The Materials and Methods of Sculpture. Courier Dover Publications. p. 129. ISBN 0-486-25742-8.

malleable (ml--bl)
Capable of great deformation without breaking, when subject to compressive stress.

ductile (dktl)
1. Easily stretched without breaking or lowering in material strength.
I would challenge the statement that lead is not ductile. When it is drawn into wire (stretched), the wire has not lost any material strength.
Nevertheless, I will concede that INTERNET searchers show results that support opposing views.
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