Duplex Steel S31803 Flanges
- Wide Availability: Produced in S31803, S2205, and S2507 duplex steel grades.
- High Strength: Up to twice the yield strength of standard stainless steel flanges.
- Corrosion Resistance: Outstanding ability to withstand stress corrosion cracking in chloride-rich conditions.
- Enhanced Wear Performance: Superior wear resistance compared with stainless steel grades.
- Standards Compliance: Manufactured according to ANSI, DIN, JIS, ISO, GB, and other global standards.
Technical Specifications
| Specification | Details |
| Material | Duplex Steel S31803, S2205, S2507 grades |
| Materials Standards | ANSI, ISO, JIS, DIN, BS, GB, SH, HG, QOST, etc. |
| Flange Types | Socket Welding, Threaded, Blind, Spectacle Blind, Slip-on, Welding Neck |
| Manufacturing Standards | ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 |
| Specification Range | 2″-24″ |
| Thickness Options | STD, SCH40, SCH80, SCH160, SCHXX |
| Pressure Grades | Class150, Class300, Class600, Class900, Class1500, Class2500 |
| Application | Petroleum, Chemical, Shipbuilding, Metallurgy, Electricity, Mechanical Industries |
| Packaging | Seaworthy Plywood Cases or pallets, or per customer request |
| Delivery Time | 20-35 days |
| Quality Control | ISO 9001 certified, with tests including PMI, PT, MT, UT, RT, VT and 3.1/3.2 mill test reports |
| Markets | Europe, US, North America, Asia |
Applications
- Oil & Gas Industry: For pipelines, equipment connections, and offshore platforms.
- Shipbuilding: Ideal for marine environments due to high corrosion resistance.
- Petrochemical: Perfect for high-pressure, high-temperature applications in refining and chemical plants.
- Power Generation: For steam, gas, and nuclear power plant equipment.
- Metallurgy & Heavy Industry: Used in various industrial machinery that demands high strength and corrosion resistance.