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Duplex 2205 Stainless Steel Manufacturer

2205 Duplex Stainless Steel Supplier


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Duplex 2205 · SAF 2205 · 22Cr Duplex · UNS S31803 · UNS S32205 · WNR 1.4462 · Standard Duplex · Duplex Steel

Duplex Steel 2205 is a two-phase corroded Steel, ferritic and austenitic steel with 22% Cr and 3% Mo, 5 to 6% Ni alloyed stainless steel with high general corrosion and stress corrosion resistance properties in addition to high strength and excellent impact toughness.

2205 Duplex Stainless Steel also known as Duplex Steel, Duplex 2205, 22Cr Duplex, URANUS 45N, FALC223, Sandvik SAF 2205, is a 22% Chromium, 3% Molybdenum, 5-6% Nickel and Nitrogen alloyed duplex stainless steel, supplied in the solution annealed condition. "Duplex" describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The high chromium, molybdenum and nitrogen content of Duplex Steel 2205 results in a Pitting Resistance Equivalent number (PREN) of 33-34, providing pitting and crevice corrosion resistance superior to Alloy 316L or Alloy 317L austenitic stainless steels in almost all corrosive media. This allows Siddhagiri Metals and Tubes to save weight and makes Duplex 2205 more cost competitive when compared to 316L or 317L. Stainless Steel 2205 Duplex is particularly suitable for applications covering the 50°F/600°F temperature range. Temperatures outside this range may be considered but need some restrictions, particularly for welded structures. 2205 Duplex well-suited for environments containing chlorides and hydrogen sulphide, for use in oil & gas extraction from sour wells, in refineries and in process solutions contaminated with chlorides.

Industry Names: 2205 Duplex Stainless Steel, Duplex 2205, 22Cr Duplex, URANUS 45N, FALC223, Sandvik SAF 2205.
Specifications: UNS S31803, UNS S32205, WNR 1.4462.
Applications: Chemical processing, transport and storage. Oil and gas exploration and processing equipment. Marine and other high chloride environments. Pulp & Paper digesters, liquor tanks and paper machines.
Features: Chloride pitting and crevice corrosion resistance, Good general corrosion resistance and sulfide stress corrosion resistance, High strength, Useful up to 600°F.

Siddhagiri Metals and Tubes is a leading Supplier, Manufacturer and Exporter of high quality Duplex 2205 Stainless Steel with UNS S31803, UNS S32205 and WNR 1.4462, in forms like Duplex Pipe, Duplex Tube, Duplex Flange, Duplex Fasteners, Duplex Fittings, Duplex Bars, Duplex Sheet, Duplex Plate and Duplex Wire Mesh. The mills that produce SAF 2205 products fulfill the toughest industry standards including those from ASTM, ASME, DIN, and ISO.

For more information on Duplex 2205 please contact us.


Stainless Steel 2205 Duplex comes with benefits of both ferritic as well ad austenitic stainless steel offering good resistance to uniform corrosion. Siddhagiri Metals and Tubes Supplies high quality 2205 Duplex Stainless Steel with UNS S31803/S32205 and WNR 1.4462.
Other Names: 2205 Duplex, Duplex 2205, Duplex S31803, Duplex S32205, Duplex Steel, Standard Duplex and Ferritic-Austenitic Stainless Steel.
Category: Duplex Steel > Duplex 2205.
Material: Duplex Steel | Austenitic-Ferritic Stainless Steel | Standard Duplex
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
Rating: 3.5/5 based on 66 customer reviews

2205 Duplex Stainless Steel Specifications and Standards

Grade Name Forging Grade North America France Germany European No. European Name
Duplex 2205 F51/F60 UNS S31803 / UNS S32205 Z2.CND22.05.03 Din X 2 CrNiMoN 22 5 E.N 1.4462 X2CrNiMoN22-5-3

Properties of 2205 Duplex Stainless Steel Alloy

  • Chemical Properties
    C P Mn N S Si Cr Ni Mo
    MIN - - - 0.140 - - 22.000 4.500 3.000
    MAX 0.030 0.030 2.000 0.200 0.020 1.000 23.000 6.500 3.500
  • Mechanical Properties
    Yield Strength
    0.2% Proof
    (MPa)
    Tensile strength
    (MPa)
    Elongation
    (% in 50mm)
    Hardness
    (HB)
    MIN 450 655 25.00  
    MAX       293
  • Physical Properties
    Units 20°C 100°C 200°C 300°C
    Density g/cm³ 7.8      
    lb/in³ 0.28      
    Modulus of elasticity GPa 200 194 186 180
    psi x 10-6 29      
    Poissons ratio   0.3      
    Linear expansion (RT ➞ T)°C x 10-6/°C - 13 13.5 14
    Thermal conductivity W/m°C 15 16 17 18
      Btu/h ft°F 8.7      
    Thermal capacity J/kg°C 500 530 560 590
    Electric resistivity µΩm 0.8 0.85 0.9 1

Forms of Stainless Steel 2205 Duplex

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