Materials and Construction
Hastelloy C is a good material of construction in chemical process industry, since it is

Relatively inexpensive although it can be fabricated with some difficulty
Light and resists attack by acids
Highly corrosion resistant and is readily fabricated
Corrosion resistant to most alkalis, particularly because of its coper content

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Materials and Construction
Lead is

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

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