.png)
Duplex UNS 1.4462 / UNS S31803 / UNS S32205 / Super Duplex 1.4410 / UNS S32750 / S32760
Duplex and Super Duplex stainless steels combine the strength of ferritic grades with the toughness of austenitic ones, offering exceptional strength and corrosion resistance. Duplex grades provide roughly twice the yield strength of standard stainless steels, while Super Duplex takes performance further with superior protection against pitting, crevice corrosion, and stress corrosion cracking. Arctic Steel sources these materials from qualified producers, delivering in accordance with NORSOK M-650/M-630, ASTM, EN, and ISO standards.
Duplex and Super Duplex stainless steels are used in demanding environments where high strength, corrosion resistance, and long service life are essential. Their dual-phase structure makes them ideal for components exposed to seawater, chlorides, and aggressive chemicals, while maintaining excellent mechanical performance. Typical applications include piping systems, pressure vessels, valves, flanges, pumps, and structural parts in offshore and industrial settings.
Typical industries using Duplex and Super Duplex:
