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Leading supplier of high-quality duplex stainless steel plates from China, specializing in grade 2205/S31803/S32205/1.4462 super duplex stainless steel.
Product Specifications
Products 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 Size
1000×2000mm, 1219×2438mm, 1500×6000mm, 1800×6000mm, 2000×6000mm or custom cutting available
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 undergone modifications resulting in UNS S32205, offering superior corrosion resistance.
This grade undergoes precipitation of brittle micro-constituents above 300°C and ductile-to-brittle transition below -50°C, making it unsuitable for use at these extreme temperatures.
Duplex 2205 (UNS S32205) is a nitrogen-enhanced stainless steel chosen for its exceptional corrosion resistance combined with high strength, offering superior performance compared to most austenitic stainless steels.
Key Benefits
High resistance to pitting and crevice corrosion
Excellent performance in most caustic environments
Good weldability for fabrication and construction
Chemical Composition Ranges for Grade 2205 Duplex Stainless Steel
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 of Duplex 2205 Stainless Steel
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
Grade Specification Comparison
Grade
UNS
EN
BS
JIS
SS
2205
S31803/S32205
1.4462
X2CrNiMoN22-5-3
318S13
SUS329J3L
Applications of Duplex 2205 Stainless Steel
The unique material composition makes Duplex 2205 ideal for critical applications across various 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
About Our Company
Integrated wholesale and material processing company specializing in duplex steel
Domestic partners: TISCO, BAOSTEEL, POSCO, JISCO, LISCO, TSINGSHAN, ESS, etc.
Applications: ship washing tower equipment, roadbed desulfurization towers, cooling towers, and various industrial applications
Processing equipment: Imported Italian hot rolling machines, strip machines, high-level water cutting machines, plasma cutting machines, large CNC milling machines, boring machines, and other advanced imported processing equipment
Logistics and Packaging Information
Packaging Method: Wooden pallets with waterproof paper packing
Packaging Sizes: 1000×2000mm, 1219×2438mm, 1500×6000mm, 2000×6000mm or custom sizes available
Packaging 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...
