Duplex Stainless Steel is Dual Phase Stainless Steel with Austenitic & Ferritic phase in equilibrium. Duplex Steel exhibits properties of both Austenitic & Ferritic composition offering great mechanical strength & corrosion resistance. Duplex Alloy 2205 is primary grade of Duplex Stainless Steel use.d throughout industry. UNS S31803 / S32205 / DIN EN 1.4462 are common Equivalent of Duplex Stainless Steel. Duplex Stainless Steel is very versatile material to be available in all raw material form. FerroBend is Elite Manufacturer & Supplier of Duplex Stainless Steel Products – Pipes, Tubes, Pipe Fittings, Tube Fittings, Forgings, Flanges, Valves, Strainers, Expansion Joints, etc.
About Duplex Stainless Steel
Duplex Stainless Steel was developed some 40 years back but its importance grew some 20 years ago. Duplex Stainless Steel is low cost alternative to Stainless Steel and other Nickel Chrome Corrosion resistant alloys. Duplex Stainless steel will replace conventional Stainless Steel in many applications.
Duplex Stainless Steel Products includes
- Pipes, Tubes
- Pipe Fittings, Tube Fittings, Forged Fittings
- Flanges, Fasteners
- Valves, Strainers
- Expansion Joints, etc.
Duplex Stainless Steel is widely used in
- Sea Water Desalination Plants
- Fuel Gas Cleaning
- Chemical Process Piping
- Paper & Pulp Process Piping
- Pharmaceutical Equipment, etc.
Some common Duplex Stainless Steel Specifications are
Duplex Stainless Steel Equivalent
|Trade Name||UNS Designation||EN DIN Number||EN Name||DIN Name||SWEDISH||AFNOR||BRITISH||JIS|
|2205||UNS S32205 & UNS S31803||1.4461||X2CrNiMoN 22-5-3||X2CrNiMoN 22 5 3||SS 2377||Z2.CND22.05.03||BS318S13||SUS 329J3L|
|2304||UNS S32304||1.4361||X2CrNiN 23 4||--||SS 2327||Z 2 CN 23.04AZ||--||--|
Duplex Stainless Steel Chemical Composition
|Element||Min, %||Max, %|
Duplex Stainless Steel Mechanical Properties
Yield 0.2 % ( Mpa/Nmm 2 ), Min
Tensile ( Mpa/Nmm2), Min
*Elongation (% in 50MM ), Min
Reduction Area(%), Min
Hardness ( BHN ), Max
Duplex Stainless Steel Specifications