Home > Super Duplex Steel > Super Duplex Steel Flanges
Marsh Nickel Alloys is a leading manufacturer and supplier of super-duplex steel flanges in Canberra, Australia. Our Super Duplex steel flanges are designed to provide exceptional strength and superior corrosion resistance, making them ideal for the toughest industrial applications. Thanks to its high chromium-molybdenum content, these flanges provide excellent resistance to compression, corrosion, pitting and erosion. They are perfect for use in offshore oil and gas platforms, chemical production, and marine environments, ensuring long term performance and reliability in harsh conditions AtMarsh Nickel Alloys we have Super Duplex High quality Steel Flanges that meet the highest industry standards -We are dedicated to providing robust and efficient solutions tailored to your specific needs, delivered.
| Specifications | ASTM A182 / ASME SA182 |
| Size | 1/8″ NB TO 48″ NB |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grades | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| Grade | Duplex Steel Flanges |
|---|---|
| C | 0.030 max |
| Mn | 2.00 max |
| Si | 1.00 max |
| P | 0.030 max |
| S | 0.020 max |
| Cr | 22.0 – 23.0 |
| Mo | 3.0 – 3.5 |
| Ni | 4.50 – 6.50 |
| N | 0.14 – 0.20 |
| Fe | 63.72 min |
| Duplex Steel | Flanges |
|---|---|
| Density (g/cm 3) | 7.805 |
| Density (lb/in 3) | 0.285 |
| Melting Point (°C) | 1420 – 1465 |
| Melting Point (°F) | 2588 – 2669 |
These flanges are crafted from a well-balanced microstructure of austenite and ferrite, enriched with high levels of chromium, molybdenum, nickel, and nitrogen. This unique composition gives them outstanding mechanical properties, such as high tensile and yield strength, toughness, and fatigue resistance. They also show excellent resistance to localized corrosion in environments rich in chlorides and maintain stability under high pressure and temperature conditions. Plus, they are easy to weld and keep their dimensional accuracy, making them a great fit for a variety of piping systems. Each flange goes through thorough inspection and testing to guarantee surface finish, metallurgical integrity, and adherence to international standards.
Contact us to get a quick quote for your requirement.
Super Duplex Steel Flanges are extensively used in industries that demand reliable and corrosion-resistant components. In the oil and gas sector, they play a crucial role in pipelines, valve connections, and pressure vessels that are exposed to seawater and harsh chemicals. In the chemical and petrochemical industries, they are perfect for reactors, heat exchangers, and process piping systems that handle corrosive fluids. Additionally, they are widely utilized in desalination plants, marine applications, and offshore platforms, where both mechanical strength and corrosion resistance are critical.
