Home > Super Duplex Steel > Super Duplex Steel Flanges
Elvis Nickel Alloys, a top-notch manufacturer and supplier located in Houston, USA, specializes in high-quality Super Duplex Steel Flanges that are designed to withstand extreme industrial conditions with remarkable durability and corrosion resistance. Crafted from premium materials like UNS S32750 (SAF 2507) and UNS S32760 (Zeron® 100), these flanges boast a dual-phase microstructure (austenitic-ferritic) that offers outstanding protection against pitting, crevice corrosion, and chloride stress corrosion cracking. They come in various types, including weld neck, slip-on, blind, socket weld, threaded, and lap joint, all adhering to international standards such as ASTM A182, ASME B16.5, and EN 1092-1.
Super Duplex Steel Flanges are made up of 24–26% chromium, 6–8% nickel, 3–5% molybdenum, and 0.2–0.3% nitrogen, along with trace elements like copper, manganese, and tungsten. This unique composition results in a high PREN (>40), ensuring exceptional performance against localized corrosion. These flanges can achieve tensile strength up to 800 MPa and yield strength of at least 550 MPa, along with impressive impact toughness, even in sub-zero temperatures. Their robust mechanical properties and resistance to cracking under stress and corrosion make them perfect for high-pressure, high-temperature, and corrosive media applications.
| 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 |
At Elvis Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Flanges in Texas, USA, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the USA, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Super Duplex Steel Flanges find extensive use in various industries, including oil and gas, petrochemicals, marine engineering, desalination, and power generation. Their remarkable corrosion resistance and mechanical strength make them ideal for offshore platforms, subsea pipelines, heat exchangers, pressure vessels, and chemical reactors. These flanges ensure leak-proof, secure pipe connections in systems that handle chloride-rich, acidic, or alkaline fluids. With excellent resistance to erosion, fatigue, and thermal stress, Super Duplex flanges are essential for applications that demand long-term performance, low maintenance, and uncompromised safety in aggressive environments.
