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Wai Nickel Alloys is a leading manufacturer and supplier of super-duplex steel flanges in Naypyidaw, Myanmar. 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 At Wai 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 |
**Super Duplex Steel Flanges** consist of about 25% chromium, 7% nickel, 3–4% molybdenum, along with trace amounts of nitrogen, which gives them a unique dual-phase austenitic-ferritic microstructure. This special blend provides exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. The alloy boasts impressive tensile strength, ranging from 800 to 900 MPa, along with excellent yield strength and superior impact toughness. Additionally, it offers great weldability, fatigue resistance, and thermal stability, even in extreme operating conditions.
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You’ll find **Super Duplex Steel Flanges** commonly used across various industries, including oil and gas, petrochemical, marine, power generation, and desalination. They’re perfect for connecting pipes, valves, and pumps in systems that face exposure to seawater, acids, and chlorides. These flanges are also utilized in offshore platforms, chemical processing facilities, and wastewater treatment plants. With **Super Duplex Steel Flanges**, you can count on reliable sealing, corrosion protection, and long-term performance, even in the most aggressive and high-pressure industrial environments.
