As nouns the difference between formability and ductility
is that formability is the quality or degree of being formable while ductility is (physics) ability of a material to be drawn out longitudinally to a reduced section without fracture under the action of a tensile force.
formability
English
Noun
(en-noun)
The quality or degree of being formable.
ductility
English
Noun
(physics) Ability of a material to be drawn out longitudinally to a reduced section without fracture under the action of a tensile force.
See also
* — Wikipedia