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AUSTEMPERED DUCTILE IRON
Austempered Ductile Iron (ADI) has all
the advantages of a ductile iron casting plus mechanical
properties which are superior to all cast irons and
most steel forgings and castings, thanks to a special
heat treat process. Its strength, fatigue strength and
toughness are equal or better than steel, while its
damping property is five times greater than steel. In
density, ADI is .26 lbs. per cubic inch compared with
steel’s .28 lbs. per cubic inch. ADI offers one
of the best combinations when it comes to lower costs,
design flexibility, machinability and strength-to-weight
ratio.

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