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Advanced Duplex Steel Solutions
Steel Emporium is a premier supplier of high-integrity Duplex Stainless Steel Pipes and Tubes. These alloys are characterized by a "duplex" microstructure consisting of an equal balance of austenite and ferrite phases. This unique dual-phase nature provides a combination of the best properties: the corrosion resistance of 300-series austenitic stainless steels and the high yield strength of ferritic steels.
Our Duplex 2205 and S31803 pipes offer exceptional resistance to stress corrosion cracking (SCC) and localized corrosion like pitting and crevice attack. These pipes are indispensable for offshore oil and gas, chemical processing, and desalination plants where reliability under extreme pressure is critical.
Technical Advantages
Double the Strength
Yield strength is nearly twice that of standard 316L, allowing for thinner walls and significant weight savings.
SCC Resistance
Excellent resistance to Chloride Stress Corrosion Cracking, where standard stainless steels often fail.
Pitting & Crevice Resistance
High Chromium and Molybdenum content provide superior resistance to localized corrosion in seawater.
Lower Thermal Expansion
Exhibits lower thermal expansion and higher thermal conductivity than standard austenitic steels.
Industrial Duplex Grades
Duplex 2205
The standard industrial duplex grade (22% Cr). The most popular choice for chemical processing.
SpecificationsDuplex 2304
Lean Duplex grade offering high strength and better economy as an alternative to SS 316L.
SpecificationsDuplex S31803
The original specification for 2205. Provides high corrosion resistance in chloride environments.
SpecificationsFrequently Asked Questions
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