Duplex stainless steels are finding increased
application in the chemical, oil and gas industries,
petrochemical process plants, the pulp & paper industry,
pollution control equipment, transportation and for
general engineering thanks to their outstanding corrosion
resistance and mechanical properties.
Super duplex (25% chromium) stainless steel alloy
in a variety of forms is important. For example, bars,
forgings, castings, sheets, plates, pipes/tubes, welding
consumables, flanges, fittings, dished ends and fasteners
are available. In terms of other benefits, the high
allowable design stress of this alloy type in comparison
with other duplex stainless steels and austenitic
stainless steels, including 6% Mo type, is significant. It
also offers excellent castability, weldability and
machinability. These features are complemented by
excellent fatigue resistance and galvanic compatibility
with other high alloy stainless steels.
