Duplex S31803

Duplex S31803

Alloyed Sustainables is a leading importer and stockist of high-quality DUPLEX S31803 Stainless Steel, catering to diverse industries. With a focus on customer satisfaction, they offer a comprehensive range of products, including Bars, Sheets, Coils, Plates, and Pipes. Their commitment to quality is reflected in rigorous quality control processes, ensuring products meet industry standards. Backed by a customer-centric approach, they provide expert guidance, reliable deliveries, and a wide inventory; all aimed at delivering stainless steel products that exceed expectations.

Duplex S31803, also known as UNS S31803 or simply S31803 is a type of duplex stainless steel. Duplex stainless steels are a class of stainless steels that exhibit a combination of properties from both austenitic (chromium-nickel) and ferritic (chromium-iron) Stainless Steels. This combination of properties makes duplex stainless steels highly attractive for a range of applications, particularly in environments where high corrosion resistance and mechanical strength are required. The “S31803” designation specifically refers to the chemical composition of the steel. It typically contains about 22% chromium, 5-6% nickel, 3% molybdenum, and a balance of iron, along with small amounts of other elements.

We provide a range of other Duplex Grades with distinct propertie­s to cater to specific require­ments and applications, such as Duplex 32250, Super Duple­x S32750, and more, all designed to me­et unique nee­ds.

Key features of Duplex S31803:

• Corrosion Resistance: Duplex S31803 stainless steel demonstrates exceptional resistance to corrosion in aggressive environments containing chlorides and acids, making it a preferred choice for marine and chemical industry applications.
• High Strength: With its elevated strength levels compared to austenitic steels, Duplex S31803 ensures robust structural integrity, making it well-suited for heavy-duty equipment and load-bearing applications.
• Stress Corrosion Cracking Resistance: Duplex S31803’s resistance to stress corrosion cracking, especially in chloride-rich settings, positions it favorably in sectors like oil extraction and desalination.
• Ductility and Toughness: The combination of ductility and toughness in Duplex S31803 prevents brittleness and ensures the material can endure impacts and sudden loads.
• Pitting Resistance: Duplex S31803’s inherent resistance to pitting and crevice corrosion enhances its longevity in fluctuating temperature environments and exposure to corrosive agents.
• Heat Resistance: While not the most heat-resistant stainless steel, Duplex S31803 provides sufficient heat resistance for numerous applications involving elevated temperatures.

Application across Industries:

• Oil and Gas Industry: Duplex S31803 serves in offshore platforms and pipelines due to its corrosion resistance and strength, vital for harsh marine environments and high pressures.
• Chemical Processing: Used in reactors and storage tanks, Duplex S31803 withstands corrosive chemicals and acids, ensuring equipment longevity in chemical plants.
• Marine Engineering: Its resistance to saltwater corrosion makes it ideal for shipbuilding, naval vessels, and marine structures, enhancing durability.
• Energy Sector: Applied in power plants for heat exchangers, it resists high temperatures and corrosive agents.
• Pharmaceuticals: In pharmaceutical manufacturing, it’s used for equipment like storage tanks due to chemical resistance.

STANDARD SPECIFICATION

• ASME SA 182
  
• ASME SA 240
  
• ASME SA 479
  
• ASME SA 789
  
• ASME SA 789 Section IV Code Case 2603
  
• ASTM A 240
  
• ASTM A 276 Condition A
  
• ASTM A 276 Condition S
  
• ASTM A 479
  
• ASTM A 790
  
• NACE MR0175/ISO 15156
  
• NORSOK MDS D45 Grade F51
  
• UNS S31803
  
• UNS S32205
  
• W. NR./EN 1.4462