Duplex steel bars have enormous hardness making them the first choice for
applications that need strength:
Duplex stainless steels are called "duplex" because they have a two-phase microstructure
consisting of grains of ferritic and austenitic stainless steel. This structure provides a unique set
of benefits.them for pump shaft, bolts and valve components.
Strength
Duplex stainless steels are about twice as
strong as regular austenitic or ferritic
stainless steel.
Corrosion resistance
As with all stainless steels, corrosion
resistance depends mostly on the
composition of the stainless steel. The
composition of this steel makes it better
at resisting corrision.
Toughness and ductility
Duplex stainless steel has significantly better toughness and ductility than ferritic grades.