Home > Duplex Steel Nuts 2205
Duplex Steel 2205 Nuts are robust, corrosion-resistant fasteners crafted for tough industrial settings. Made from the popular Duplex 2205 alloy, these nuts boast a well-balanced microstructure that provides remarkable resistance to pitting, crevice corrosion, and chloride stress-corrosion cracking. Their impressive mechanical strength and durability make them perfect for high-pressure and high-temperature applications. Industries like oil & gas, petrochemical, marine, chemical processing, and desalination rely on Duplex 2205 Nuts for their exceptional performance in harsh and corrosive environments, ensuring secure and long-lasting connections in critical equipment and structural assemblies.
Duplex Steel 2205 Nuts are made from a ferritic-austenitic duplex stainless-steel alloy that contains about 22% chromium, 5–6% nickel, and 3% molybdenum, with a touch of nitrogen to boost strength. This unique blend offers fantastic resistance to chlorides, oxidation, and general corrosion. Duplex 2205 delivers significantly higher yield strength compared to standard stainless steels, along with impressive hardness and impact toughness. Its dual-phase structure enhances stability under high stress and temperature, ensuring dependable mechanical performance. These features make Duplex 2205 Nuts perfect for heavy-duty applications in aggressive chemical and marine environments.
| Standard | ASTM B564, ASME SB564 |
| Specification | DIN, ASTM, BS and all International Standards |
| Flat bar blocks | up to 27″ width and 15,000 lbs. |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs. |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs. |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
| Hastelloy B2 | 0.02 max | 1.0 max | 0.1 max | 0.03 max | 1.0 max | Bal | 1.0 max | 2.0 max | 26 – 30 | 0.04 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 9.2 g/cm3 | 1370 °C (2500 ºF ) | Psi – 1,10,000, MPa – 760 | Psi – 51000, MPa – 350 | 40 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Hastelloy B2 | 2.4617 | N10665 |
Duplex Steel 2205 Nuts are widely utilized in situations that demand exceptional strength and corrosion resistance. In marine and offshore settings, they secure components in seawater systems, risers, platforms, and subsea structures. The oil and gas sector employs them in pipelines, pumps, valves, heat exchangers, and high-pressure processing equipment. Additionally, they are commonly found in chemical and petrochemical plants, fastening machinery that faces acidic environments. Their reliability and durability make them a go-to choice for ensuring the integrity of critical systems in challenging conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
