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Santner Nickel Alloys is a reputable manufacturer and supplier located in Hamilton, New Zealand, specializing in top-notch Duplex Steel 2205 Nuts that are built to withstand tough industrial conditions. Renowned for their precision engineering and rigorous quality control, the company consistently delivers products that align with international performance standards. Their Duplex Steel 2205 Nuts are known for their remarkable strength, resistance to corrosion, and durability, making them ideal for environments exposed to harsh chemicals, seawater, and extreme temperatures. With a strong commitment to reliability and customer satisfaction, Santner Nickel Alloys is dedicated to providing industries with robust and cost-effective fastening solutions.
Duplex Steel 2205 Nuts are made up of about 22% chromium, 5–6% nickel, 3% molybdenum, and controlled nitrogen, creating a well-balanced ferritic-austenitic microstructure. This unique composition grants them exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, Duplex 2205 boasts high tensile strength, impressive yield strength, and excellent fatigue resistance—outperforming many austenitic stainless steels. These nuts maintain their stability even under high pressure and temperature fluctuations, ensuring reliable performance in extreme industrial settings where strength and corrosion resistance are paramount.
Material | Specification | Standards | Size | Length |
Duplex Steel 2205 | IS BS ASTM | ASTM / ASME – A/ SA 479 / 479 | 3 mm | M02 to M30 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Duplex Steel 2205 Nuts | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| ades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| Duplex 2205 Nuts | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
At Santner Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel 2205 Nuts 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.
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Duplex Steel 2205 Nuts find their place in various industries that demand strong, corrosion-resistant, and durable fastening solutions. They play a crucial role in offshore and marine applications, such as subsea equipment, shipbuilding, and desalination systems, where environments rich in chloride require top-tier corrosion resistance. In the chemical and petrochemical industries, these nuts are utilized in pressure vessels, heat exchangers, pipelines, and reactors that handle aggressive chemicals. They are also frequently used in pulp and paper processing and structural engineering projects, showcasing their versatility and reliability across multiple sectors.