Home > Duplex Steel Nuts S32205
Duplex Steel S32205 Nuts are top-notch fastening components designed for tough industrial settings that require outstanding strength, resistance to corrosion, and long-lasting reliability. Made from the popular Duplex S32205 alloy, these nuts excel at resisting pitting, crevice corrosion, and stress-corrosion cracking caused by chlorides, making them perfect for challenging marine and chemical environments. Their unique dual-phase microstructure ensures they remain tough and stable even under high pressure and temperature. You’ll find Duplex S32205 Nuts in various industries like oil & gas, petrochemical, desalination, marine engineering, and power generation, where they provide secure fastening for critical equipment, piping systems, and structural assemblies.
Duplex Steel S32205 Nuts are made from a well-balanced ferritic-austenitic alloy that includes about 22% chromium, 5–6% nickel, and 3% molybdenum, with added nitrogen to boost mechanical strength. This blend gives them remarkable resistance to chloride corrosion, oxidation, and chemical damage. The alloy boasts high yield and tensile strength—about double that of standard stainless steels—along with impressive hardness and impact toughness. Thanks to their stable dual-phase structure, S32205 nuts perform reliably under high temperatures and stress, making them perfect for demanding industrial applications that need both strength and corrosion resistance.
| Grade | Common Name | C% | Mn% | Si% | P% | S% | Cr% | Ni% | Mo% | N% |
|---|---|---|---|---|---|---|---|---|---|---|
| S32205 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 | |
| S32205 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 |
Duplex Steel S32205 Nuts find their place in industries where they often face corrosive, high-pressure, or high-temperature conditions. In the oil & gas sector, they’re essential for pipelines, pumps, valves, pressure vessels, and offshore structures. The marine and desalination industries depend on them for seawater systems, heat exchangers, and subsea equipment, thanks to their excellent resistance to chlorides. Chemical and petrochemical plants also rely on these nuts for their durability and performance in challenging environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
