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1000×2000mm, 1219×2438mm, 1500×6000mm, 1800×6000mm, 2000×6000mm or custom cutting
Brand
POSCO, TISCO, BAOSTEEL, JISCO, ESS
Other Grades
304, 316L, 309S, 310S, 321, 347, 2507, 904L, 254SMO, etc.
Service
Cutting
Duplex 2205 stainless steel (combining ferritic and austenitic properties) is extensively used in applications requiring excellent corrosion resistance and high strength. The S31803 grade has been modified to create UNS S32205, offering superior corrosion resistance.
Note: This grade undergoes brittle precipitation above 300°C and ductile-to-brittle transition below -50°C, making it unsuitable for use at these extreme temperatures.
Key Benefits of Duplex 2205
High resistance to pitting and crevice corrosion
Excellent performance in most caustic environments
Superior weldability characteristics
Higher corrosion resistance than most austenitic stainless steels
Chemical Composition Ranges
Grade
C
Mn
Si
P
S
Cr
Mo
Ni
N
2205 (S31803)
- 0.030
- 2.00
- 1.00
- 0.030
- 0.020
21.0-23.0
2.5-3.5
4.5-6.5
0.08-0.20
2205 (S32205)
- 0.030
- 2.00
- 1.00
- 0.030
- 0.020
22.0-23.0
3.0-3.5
4.5-6.5
0.14-0.20
Mechanical Properties
Grade
Tensile Strength (MPa) min
Yield Strength 0.2% Proof (MPa) min
Elongation (% in 50mm) min
Hardness 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
2377
Industrial Applications
The unique material composition makes Duplex 2205 ideal for critical applications across multiple industries:
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 Overview
Integrated wholesale and material processing company specializing in duplex steel
Applications: ship washing tower equipment, roadbed desulfurization towers, cooling towers, and various industrial sectors
Advanced processing equipment including Italian imports: hot rolling machines, strip machines, high-pressure water cutting, plasma cutting, large CNC milling machines, and boring machines
Packaging and 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...