Stainless Steel Alloy Duplex 2205, UNS S32205

Duplex 2205, often known as UNS S32205, is an improved stainless steel containing nitrogen. Users select Duplex 2205 due to its superior corrosion resistance and strong strength. It is essential to highlight that Duplex 2205 has significantly superior corrosion resistance than the majority of austenitic stainless steels. Other advantages include:

High resistance to pitting and crevice corrosion

Excellent in most caustic environments

Good weldability

To qualify as Duplex 2205, a stainless steel must have the following chemical composition:

Cr 21-23%

Ni 4.5-6.5%

Mn 2% Max

Mo 2.5-3.5%

N 0.08-0.20%

P 0.30% max

C 0.030% max

This unique combination of components makes Duplex 2205 the material of choice for a variety of important applications in a variety of sectors, including:

Chemical processing, transport, and storage

Marine and Land cargo tanks

Biofuel production

Food processing

Pulp and Paper manufacturing

Oil and gas exploration and processing

Waste management

High chloride environments

Sino Special Metal is a supplier of Duplex 2205 in a variety of shapes and sizes including sheet, coil, plate, plate coil, and more. All of the Duplex 2205 available via SSM meets industry standards including UNS, ASME, and ASTM.