Stainless steels are preferred for their superior corrosion resistance. Its derivatives are formed by altering composition of the various alloying elements. They are broadly divided into- austenitic, ferritic, martensitic, duplex and precipitation hardened stainless steels. This article will focus on the brief history, classification, properties and applications of Duplex Stainless steel. Visit- https://www.ambicasteels.com/blog/applications-and-uses-of-duplex-stainless-steels/

1. Chemical processing,
transport and storage –
pressure vessels, tanks,
piping, and heat
exchangers
Oil and gas exploration
and processing
equipment – piping,
tubing, and heat
exchangers
Marine and other high
chloride environments
Pulp and paper industry
– digesters, bleaching
equipment, and stock-
handling systems
Cargo tanks for ships
and trucks
Food processing
equipment
Biofuels plants
APPLICATIONS AND USES OF DUPLEX
STAINLESS STEELS
Higher strength permits
use of thinner gauges
which is useful when
lighter fabrications are
desired
Stainless steel prices are
based mainly on one
particular commodity
i.e. Nickel. Duplex
stainless steel have
relatively low Nickel
content, thus making it
immune to commodity
price fluctuations.
Both the above factors
make Duplex stainless
steel relatively cheaper
with superior properties
for specific applications.
ADVANTAGE
APPLICATIONS
AND USES
AVAILABLE
GRADES
PROPERTIES
Grades
1.4462 (F51 & F60)
1.4410 (F53)
1.4501 (F55)
1.4821
1.4460 (329)
1.4362 (2304)
Corrosion
Resistance
Stress Corrosion
Cracking (SCC)
Resistance
Mechanical
Strength
Welding
Duplex Stainless Steels