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Santner Nickel Alloys is a trusted manufacturer and supplier of high-quality Super Duplex Steel Flanges in Hamilton, New Zealand. Known for delivering products that combine exceptional strength, corrosion resistance, and long-term durability, the company caters to a wide range of industrial needs. Their Super Duplex Steel Flanges are produced using advanced manufacturing techniques to ensure precision, reliability, and consistent performance in demanding environments. With a strong focus on quality assurance, timely delivery, and customer satisfaction, Santner Nickel Alloys has become a preferred choice for industries seeking robust, high-performance flange solutions that meet modern engineering standards.
Super Duplex Steel Flanges are made from a balanced composition of chromium, nickel, molybdenum, and nitrogen, which together provide excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Their dual-phase structure enhances mechanical strength, toughness, and stability under high pressure and elevated temperatures. These flanges exhibit exceptional tensile strength, good impact resistance, and reliable hardness, making them suitable for demanding and corrosive industrial environments. Their mechanical properties ensure long-lasting performance in applications exposed to seawater, chemicals, and high-stress conditions.
| 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 Santner Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Flanges in Hamilton, New Zealand, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the New Zealand, 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 are widely used across industries that require strong, corrosion-resistant, and durable piping components. They are commonly installed in offshore platforms, subsea pipelines, chemical processing units, and desalination plants due to their ability to withstand harsh and chloride-rich environments. These flanges also play an important role in pressure vessels, marine engineering systems, heat exchangers, and high-pressure piping networks. Their reliability and toughness make them ideal for oil and gas operations, refinery systems, power generation plants, and heavy-duty industrial applications. Overall, they offer long-lasting, safe, and efficient performance in challenging environments.
