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Bilal Nickel Alloys, based in Safat, Kuwait, is a trusted manufacturer and supplier of Duplex Steel Flanges, delivering premium products renowned for their high strength, corrosion resistance, and durability. Each flange is manufactured to meet strict industrial standards, ensuring reliable performance in challenging environments. Duplex Steel Flanges are designed for chemical, petrochemical, oil and gas, marine, and industrial applications, providing long-term structural integrity and operational efficiency. By combining advanced manufacturing techniques with expert craftsmanship, Bilal Nickel Alloys provides solutions that support safe, efficient, and durable operations across industries where high-performance alloy components are essential.
Duplex Steel Flanges are composed of a balanced austenitic-ferritic stainless steel alloy, typically containing chromium, nickel, molybdenum, and nitrogen. This composition ensures excellent resistance to pitting, crevice, and stress corrosion cracking in chloride-rich and harsh environments. Mechanically, duplex steel exhibits high tensile and yield strength, superior toughness, and excellent fatigue resistance. The material also offers good weldability and formability, making it ideal for flanges requiring both mechanical reliability and long-term corrosion resistance in demanding industrial 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 Bilal Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Flanges in Safat, Kuwait, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Kuwait, 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.
Duplex Steel Flanges are widely used in industries requiring high strength, durability, and corrosion resistance. In oil and gas, they are ideal for offshore platforms, pipelines, and refinery equipment exposed to chloride-rich and corrosive environments. Chemical and petrochemical plants use them for safe handling and transport of acids, alkalis, and other aggressive chemicals. Marine and desalination applications benefit from their resistance to seawater and harsh operational conditions. Additionally, duplex steel flanges are used in power generation, pulp and paper, and other high-performance industrial systems, ensuring long-lasting, reliable performance in demanding industrial environments.
