Materials and Construction
Mild steel is

A high carbon steel (0.5 to 1.5% carbon)
Very poor in strength & ductility
Highly resistant to corrosion (as much as stainless steel)
A low carbon steel (0.05 to 0.3% carbon)

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Materials and Construction
Lead is

Used as a shock absorber (in mattress form) between the foundation an steel framework of skyscrapper buildings
Used as a cathodic material
Not used as pigment (in its compound forms) for paints
Not resistant to corrosion

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