Duplex / Super Duplex                                                                 Print

 

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.

 

DUPLEX AND SUPER DUPLEX

MATERIALS
MECHANICAL CHARACTERISTICS
Grade
ASTM Plates
UNS
W.N.
Tensile Strength min N/mm2
Yield Point min N/mm2
Elongation 2" min%
Hardness Max HB
Hardness Max HRB

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