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Hakan Nickel Alloys, located in Istanbul, Turkey, is a reputable manufacturer and supplier of Duplex Steel Flanges, providing robust, corrosion-resistant solutions for essential piping systems. With a commitment to quality, precise dimensions, and top-notch material performance, the company caters to various industries, including oil and gas, petrochemicals, marine, and water treatment. The Duplex Steel Flanges from Hakan Nickel Alloys are designed to ensure strong, leak-proof connections even under high pressure and challenging environmental conditions. By utilizing cutting-edge manufacturing methods and strict quality control, the company produces flanges that comply with international standards, guaranteeing reliable performance in the toughest industrial settings.
Duplex Steel Flanges are typically crafted from grades like Duplex 2205, which consists of about 22% chromium, 5–6% nickel, 3% molybdenum, and nitrogen. This well-balanced austenitic-ferritic structure provides the flanges with impressive tensile strength (620–880 MPa) and excellent yield strength, along with remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. Duplex flanges excel in environments rich in chlorides, acids, and high temperatures. They also boast superior fatigue strength compared to standard stainless steels. The material is weldable, non-magnetic, and thermally stable, making these flanges perfect for critical applications that demand both mechanical strength and long-lasting corrosion resistance.
| 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 Hakan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Flanges in Istanbul, Turkey, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Turkey, 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 find extensive use in high-performance piping systems across oil and gas platforms, offshore rigs, and refineries where high pressure and corrosion resistance are paramount. In marine settings, they are well-suited for seawater handling, ballast systems, and firewater lines. The chemical and petrochemical industries depend on them for processing applications, ensuring safety and efficiency in their operations.