UNS S32205 Duplex 2205 Stainless Steel Seamless Pipe
What are 2205 stainless steel used for?
Applications: Chemical processing, transportation, and storage-pressure vessels, tanks, piping, and heat exchangers. Oil and gas exploration and processing equipment-piping, tubing, and heat exchangers. Marine and other high-chloride environments.
What are the specifications for 2205 duplex stainless steel pipe?
2205 duplex stainless steel is a duplex, ferritic, austenitic stainless steel alloy containing 22% chromium, 3% molybdenum, and 5-6% nickel. It is the most widely used duplex stainless steel grade, characterized by its high yield strength, which is twice that of standard austenitic grades.
UNS S32205 duplex 2205 stainless steel seamless pipe offers greater strength and corrosion resistance than standard stainless steel, making it ideal for harsh environments such as offshore operations, chemical processing, and desalination plants. Its unique microstructure, combining ferrite and austenite, provides excellent resistance to chloride stress corrosion cracking, pitting, and crevice corrosion. Fabrication requires higher-capacity equipment, and proper welding procedures and post-weld cleaning are crucial to prevent contamination and maintain the integrity of the alloy.
2205 duplex stainless steel pipe Specification
| Specification | Details |
| ASTM Specification | ASTM A790, ASME SA790 |
| Manufacturing Type | Seamless / ERW / Welded / Fabricated / CDW / CDS / DOM / CEW / 100% X Ray Welded |
| Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXH, SCH XXS, SCH XS |
| Standard | SUS, JIS, AISI, ASTM, GB, DIN, EN |
| Additional Services | Destructive and Non Destructive testing, Threading, Ultrasonic Testing, Beveling, Cutting, Draw & Expansion as per required Size & Length |
| Pipe End Type | Plain End, Beveled End, Treaded 2205 Stainless Steel Pipe |
| Marking Details | Manufacturer's Name or Custom Logo - on request, Heat Number, Method of Manufacturing (Seamless / Welded), Material Grade, Schedule or Wall Thickness, Specification, Nominal Size |
| Inspection & Testing | Destructive and Non-Destructive Testing |
| Surface Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc |
| Gauge (Swg & Bwg) | 10, 12, 14, 16, 18, 20 Swg. |
| Temperature Range | -50 to 300°C (Depends on material grade) |
| Pressure Rating | Up to 6000 PSI (Depends on size and schedule) |
Duplex 2205 Round Pipe Chemical Composition
| C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 - 3.5 | 22.0 - 23.0 | 0.03 | 4.5 - 6.5 | 0.14 - 0.2 | Bal |
SAF 2205 Tubing Mechanical Properties
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi - 80000 , MPa - 550 | Psi - 116000 , MPa - 800 | 15 % |
UNS S32205 Duplex 2205 Stainless Steel Seamless Pipe Applications
2205 duplex stainless steel pipe is widely used in demanding industries, including:
Oil and gas exploration and processing
Chemical processing, transportation, and storage
Pulp and paper manufacturing
Desalination and wastewater treatment
Marine and offshore engineering
Heat exchangers and pressure vessels
Food processing
UNS S32205 Duplex 2205 Stainless Steel Seamless Pipe Advantages
Cost-effective: For applications involving chloride stress corrosion cracking, it is a more cost-effective solution than some other high-nickel alloys.
Durability: It offers exceptional durability, precise accuracy, and a good surface finish.
Gnee Steel specializes in the production and sale of a wide range of stainless steel products, including 304, 316, 321, 904, 904L, 2205 Duplex, 2205 Duplex, and 316L stainless steel. Gnee Steel's products are widely used in the kitchen, aerospace, chemical, power, automotive, and nuclear energy sectors. We also provide custom stainless steel solutions tailored to customer needs. For stainless steel pricing or custom alloy solutions, please email ru@gneesteelgroup.com for a quote.
