Materials and Construction
Karbate is

Both B and C
A mixture of iron dust and saw dust
Carbon impregnated with resin (usually bakelite)
An acid resistant material

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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
Corrosion resistant to most alkalis, particularly because of its coper content
Highly corrosion resistant and is readily fabricated

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Materials and Construction
Lead

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

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