What (steel, Aluminum) properties are commonly important for the uses?
How do these properties compare to other materials in this class of materials or to other classes of materials.
The important properties generally considered are:
Physical properties:
-Density
-Yield strength
-Ductility
-Hardness
-Shear strength
-Youngs modulus
-Fracture strength
other Properties:
-Chemical Reaction with other elements
-Magnetic properties
-Surface finish
-Machinability
-Inertness to environmental effects etc
These materials fall under the category of metals and the comparision between these two metals is in the areas of :
Ductility, machinability, hardness, toughness, fatigue strength and shear strength
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