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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 Available
304, 316L, 309S, 310S, 321, 347, 2507, 904L, 254SMO, etc.
Service
Custom Cutting
Duplex 2205 stainless steel combines both ferritic and austenitic structures, making it ideal for applications requiring excellent corrosion resistance and high strength. Originally designated as S31803, this grade was enhanced to become UNS S32205 in 1996, offering superior corrosion resistance properties.
Note: This grade is not suitable for use at temperatures above 300°C due to brittle micro-constituent precipitation, or below -50°C due to ductile-to-brittle transition.
Key Benefits
High resistance to pitting and crevice corrosion
Excellent performance in most caustic environments
Superior weldability compared to other stainless steels
Higher strength and corrosion resistance than standard austenitic stainless steels
Chemical Composition
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
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
Duplex 2205 stainless steel is widely used in critical applications across various industries:
Chemical processing, transport, and storage
Marine and land cargo tanks
Biofuel production
Food processing
Pulp and Paper manufacturing
Oil and gas exploration and processing
Waste management
High chloride environments
Product Gallery
Company Profile
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 tower, cooling tower, and various industrial uses
Processing equipment: Imported Italian machinery including hot rolling machines, strip machines, high-level water cutting machines, plasma cutting machines, large CNC milling machines, boring machines, and other advanced processing equipment
Packaging & Logistics
Packaging Information
Packing Method
Wooden pallets with waterproof paper packing
Packing Size
1000×2000mm, 1219×2438mm, 1500×6000mm, 2000×6000mm or custom sizes
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...