Super Duplex Stainless Steel Products Manufacturers, Super Duplex Steel Supplier and Super Duplex Steel Exporter
Simco Metal Industries is a leading Super Duplex Stainless Steel Products Manufacturer, Supplier, and Exporter in India. We offer a comprehensive range of Super Duplex Steel Pipes & Tubes, Plates, Sheets & Coils, Bars, Rods, Fittings, Flanges, and Fasteners. Known for superior strength, excellent corrosion resistance, and durability, our Super Duplex Steel products meet ASTM and ASME standards and are widely used in offshore, marine, petrochemical, and power generation industries.
Super Duplex Steel Specifications
We supply super duplex stainless steel that conforms to major international standards, ensuring reliability for demanding applications. Our products can be supplied with specific tolerances and third-party documentation for a seamless approval process.
Super Duplex Steel Specifications Table
| Item |
Specification |
| Common Grades | UNS S32750 (2507), UNS S32760; A182 F53/F55; DIN 1.4410 / 1.4501 |
| Product Standards | ASTM A790 (pipe), A789 (tube), A240 (plate/sheet), A182 (flanges/forgings), A276/A479 (bars), A815 (buttweld fittings); EN 10088-3 |
| Dimensional Refs | ASME B36.19M, ASME B16.5/B16.47, ASME B16.9, ASME B16.11 |
| Finishes / Condition | Hot rolled, cold drawn, pickled & passivated, polished; solution annealed |
| Documentation | EN 10204 3.1 / 3.2 MTC, PMI, heat charts |
| Testing (options) | ASTM A923, ASTM G48 Method A, UT/ET, hydrostatic |
| Tolerances | Per ASTM/ASME/EN; tight tolerances & cut lengths on request |
Super Duplex Stainless Steel Chemical Composition
The high performance of super duplex stainless steel is derived from its rich alloy content. The elevated levels of Chromium, Molybdenum, and Nitrogen are key to its exceptional resistance to pitting and crevice corrosion.
| Grade (UNS) |
Cr % |
Ni % |
Mo % |
N % |
Others |
| S32750 | 24.0–26.0 | 6.0–8.0 | 3.0–5.0 | 0.24–0.32 | C ≤0.03, Cu ≤0.5 |
| S32760 | 24.0–26.0 | 6.0–8.0 | 3.0–4.0 | 0.20–0.30 | C ≤0.05, Cu 0.5–1.0, W 0.5–1.0 |
Super Duplex Steel Material Properties
Super duplex material offers superior mechanical properties, including high tensile and yield strength, making it a strong alternative to standard stainless steels in high-stress environments.
| Property |
S32750 (2507) |
S32760 |
| Tensile Strength (min) | 800 MPa (116 ksi) | 750 MPa (109 ksi) |
| Yield Strength 0.2% (min) | 550 MPa (80 ksi) | 550 MPa (80 ksi) |
| Elongation (min) | 25% | 25% |
| Hardness (max) | 310 HBW | 290 HBW |
Super Duplex Stainless Steel Equivalent
| Grade |
Equivalent Names |
| UNS S32750 | Duplex 2507, SAF 2507 |
| UNS S32760 | Zeron 100 |
Super Duplex Material Code
| Material Code |
Corresponding Grade |
| F53, 1.4410 | UNS S32750 |
| F55, 1.4501 | UNS S32760 |
Super Duplex Material Grade
- UNS S32750: Known for excellent resistance to pitting and crevice corrosion, suitable for harsh environments such as offshore platforms and chemical processing plants.
- UNS S32760: Highly-alloyed grade containing tungsten and copper, offering greater corrosion resistance for extremely corrosive applications such as sulfuric and phosphoric acid environments.
Super Duplex Steel Applications
- Oil & Gas: Pipelines, risers, offshore platforms for seawater and chloride stress corrosion cracking resistance.
- Chemical Processing: Heat exchangers, pressure vessels, tanks handling aggressive media like sulfuric acid.
- Marine & Shipbuilding: Propellers, shafts, desalination plants requiring high corrosion resistance.
- Pulp & Paper Industry: Bleaching equipment, digesters resistant to corrosive chemicals and high temperatures.
