Duplex Steel UNS S32205 Nuts

About Duplex Steel UNS S32205 Nuts

Duplex steel UNS S32205 Nuts are a popular design choice due to their durability and excellent corrosion resistance. They are composed mainly of chromium, nickel, and molybdenum, forming an alloy of about 50% ferritic and 50% austenitic. Their superior strength and resistance make them the preferred material for some of the most demanding applications in the engineering field, from off-shore oil rigs to chemical processing plants. Their high corrosion resistance level means they are often chosen when other materials fail to meet safety requirements. Duplex steel UNS S32205 nuts offer superior performance that may justify using higher-cost alloys instead.

Reliable Fastening in Critical Environments

Duplex Steel UNS S32205 Nuts are engineered to secure fasteners effectively in challenging industrial settings including oil & gas, marine, and chemical sectors. Their fine/grain structure delivers exceptional mechanical strength, and the superior chemical composition makes them highly resistant to pitting, crevice, and stress corrosion. This ensures long-lasting reliability, particularly in aggressive environments.


Customizable to Suit Every Requirement

Manufactured to international standards, these nuts can be ordered in custom widths, thicknesses, and diameters-from M2 up to M48. Both metric and inch thread types, as well as solution-annealed finishes and optional anti-galling coatings, are available to meet diverse project needs. With a minimum order quantity based on customer demand, orders are efficiently packed and dispatched in as little as 2-4 weeks.


Superior Performance and Environmental Benefits

Thanks to their duplex microstructure, the nuts exhibit a balance of high tensile strength (620 MPa min) and hardness, while maintaining a lightweight, recyclable profile. Their bright, polished surface not only enhances aesthetics but also contributes to long-lasting service life and excellent resistance to both heat (up to 300C) and corrosion, making them a sustainable solution for demanding applications.