
Nifty Alloys LLC supplies duplex stainless steel to the oil & gas, marine, and petrochemical sectors across the UAE and GCC. Duplex stainless steel (S31803/1.4462/F51) gets its name from a two-phase microstructure — roughly equal parts austenite and ferrite — which gives it higher strength and better resistance to chloride stress corrosion cracking and pitting than standard austenitic grades like 304 or 316. Compared with austenitic stainless, duplex carries higher chromium (20–28%) and molybdenum (up to 5%), with lower nickel (up to 9%) and 0.05–0.50% nitrogen — the lower nickel content plus higher strength (allowing thinner sections) also delivers a cost advantage. For higher-strength, higher-corrosion-resistance applications, see our super duplex stainless steel page. We hold ready stock with EN 10204 3.1 mill test certificates, and our sales team can help match the right duplex grade to your application.
Chemical Composition of Duplex Stainless Steels
Mechanical Properties
Duplex Stainless Steel Grades
Key Features and Benefits of Duplex Steel
Duplex vs. Austenitic Stainless Steel: A Comparison
Applications Across Industries
Forms Available at Nifty Alloys LLC
Certifications and Quality Compliance



When you need a reliable Duplex Stainless Steel supplier, trust Nifty Alloys LLC. As a premier Duplex Stainless Steel stockist in the UAE, we offer a vast inventory to clients across the globe. You can buy Duplex Stainless Steel online or contact our team for project quotes. We provide competitive 2205 Duplex Stainless Steel prices and clear information on Duplex vs. Super Duplex steel. All our materials are certified Duplex Stainless Steel materials, ensuring full compliance.