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Duplex 2205 Stainless Steel | UNS S31803 | UNS S32205
Duplex 2205 stainless steel combines ferritic and austenitic properties, offering exceptional corrosion resistance and high strength for demanding industrial applications.
Product Specifications
Product Name
Duplex Stainless Steel Plate
Grade
2205 / S31803 / S32205 / 1.4462
Thickness
Cold Rolled: 0.6 - 3.0mm, Hot Rolled: 3.0 - 80.0mm
Width
1000mm, 1219mm, 1500mm, 1800mm, 2000mm
Standard Sizes
1000×2000mm, 1219×2438mm, 1500×6000mm, 1800×6000mm, 2000×6000mm or custom cutting
Duplex 2205 stainless steel (both ferritic and austenitic) is used extensively in applications that require good corrosion resistance and strength. The S31803 grade stainless steel has undergone a number of modifications resulting in UNS S32205, and was endorsed in the year 1996. This grade offers higher resistance to corrosion.
At temperatures above 300°C, the brittle micro-constituents of this grade undergo precipitation, and at temperatures below -50°C the micro-constituents undergo ductile-to-brittle transition; hence this grade of stainless steel is not suitable for use at these temperatures.
Key Benefits of Duplex 2205 Stainless Steel
High resistance to pitting and crevice corrosion
Excellent performance in most caustic environments
Superior weldability for fabrication
Enhanced strength compared to standard austenitic stainless steels
Chemical Composition
Compositional Ranges for Grade 2205 Duplex Stainless Steel
Grade
C
Mn
Si
P
S
Cr
Mo
Ni
N
2205 (S31803)
Max 0.030
Max 2.00
Max 1.00
Max 0.030
Max 0.020
21.0-23.0
2.5-3.5
4.5-6.5
0.08-0.20
2205 (S32205)
Max 0.030
Max 2.00
Max 1.00
Max 0.030
Max 0.020
22.0-23.0
3.0-3.5
4.5-6.5
0.14-0.20
Mechanical Properties
The typical mechanical properties of grade 2205 stainless steels are listed in the table below. Grade S31803 has similar mechanical properties to that of S32205.
Grade
Tensile Strength (MPa) min
Yield Strength 0.2% Proof (MPa) min
Elongation (% in 50mm) min
Rockwell C (HR C)
Brinell (HB)
2205
621
448
25
31 max
293 max
International Grade Specifications
Grade
UNS
EN
BS
JIS
SS
2205
S31803/S32205
1.4462
X2CrNiMoN22-5-3
318S13
SUS329J3L
Industrial Applications
This unique mix of materials makes Duplex 2205 the right choice for a number of different critical applications in a range of industries, including:
Chemical processing, transport, and storage
Marine and land cargo tanks
Biofuel production facilities
Food processing equipment
Pulp and paper manufacturing
Oil and gas exploration and processing
Waste management systems
High chloride environments
Product Gallery
Company Profile
Integrated wholesale and material processing company specializing in duplex steel
Applications: ship washing tower equipment, roadbed desulfurization towers, cooling towers, and various industrial applications
Advanced processing equipment including Italian imports: hot rolling machines, strip machines, high-level water cutting machines, plasma cutting machines, large CNC milling machines, boring machines
Packaging & Logistics
Packaging Specifications
Packaging Method: Wooden pallets with waterproof paper wrapping
Standard Sizes: 1000×2000mm, 1219×2438mm, 1500×6000mm, 2000×6000mm or custom dimensions
Package Weight: Approximately 2-3 tons per package
Company Overview ：
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h... Company Overview ：
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h...
