Materials and Construction
Mild steel is

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

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Materials and Construction
Lead

Is the lightest metal in common use
Is the hardest metal in common use
Can not be scratched by finger nails
Can not be work hardened

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