UNS S31803 and UNS S32205 duplex stainless steel sheets and plates are premium materials known for their exceptional strength, corrosion resistance, and durability. With a unique duplex microstructure (ferritic and austenitic phases), these grades offer superior resistance to pitting, stress corrosion cracking, and crevice corrosion. Their high mechanical strength and excellent weldability make them ideal for applications in harsh environments such as chemical processing, marine, and oil & gas industries.
Key Specifications:
| Property | Specification |
|---|---|
| Grades | UNS S31803 (Duplex 2205), UNS S32205 (Enhanced Duplex 2205) |
| Thickness | 0.5 mm to 100 mm (Custom sizes available) |
| Widths | Up to 2000 mm |
| Lengths | Standard and custom-cut lengths available |
| Corrosion Resistance | Superior resistance to chlorides, pitting, and crevice corrosion |
| Mechanical Properties |
|
| Applications | Pressure vessels, heat exchangers, marine components, oil & gas equipment, and structural components in aggressive environments |
| Standards | ASTM A240, ASME SA240, EN 10088-2 |
Icon Steel offers high-quality UNS S31803 and S32205 duplex stainless steel sheets and plates, designed to provide exceptional strength and superior corrosion resistance. These duplex stainless steel grades combine the best attributes of austenitic and ferritic stainless steels, making them ideal for challenging environments.
Specifications and Properties
UNS S31803 and S32205 Duplex Stainless Steel Both UNS S31803 and S32205 are duplex stainless steel grades that offer excellent resistance to corrosion and high strength. S32205 has a slightly higher chromium, molybdenum, and nitrogen content, which provides greater corrosion resistance and strength compared to S31803.
| Property | Specification |
|---|---|
| Standard | UNS S31803 / S32205 |
| Available Forms | Sheets and plates |
| Applications | Suitable for high-strength applications in the oil and gas industry, chemical processing equipment, transport, storage, and marine environments. |
Dive into our comprehensive product gallery to see the wide range of stainless steel products we offer. Each product is designed to meet the highest standards and cater to various applications across different industries. Below, you will find images and brief descriptions of each product category to help you choose the right one for your project.
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Why Choose Icon Steel for Duplex Stainless Steel Sheets and Plates?
Marine Industry
Enhanced Performance
UNS S31803 and S32205 sheets and plates offer greater strength and corrosion resistance compared to standard austenitic or ferritic stainless steels, ensuring durability in severe conditions.
Oil & Gas Industry
Used in offshore platforms, pipelines, pressure vessels, and storage tanks due to their excellent corrosion resistance and strength.
Expert Support
Our team provides comprehensive guidance to ensure you select the right materials for your needs, backed by technical support throughout your project.
Customization Options
We offer these duplex stainless steel sheets and plates in various thicknesses and dimensions, tailored to meet specific project requirements.
FAQ
UNS S31803 and S32205 are both duplex stainless steel grades, but S32205 has a higher chromium, molybdenum, and nitrogen content, which enhances its corrosion resistance and strength. This makes S32205 slightly more suitable for environments where extreme corrosion resistance and strength are critical.
Duplex stainless steel, particularly UNS S31803 and S32205, offers excellent corrosion resistance to both chlorides and sulfides, making it highly resistant to pitting and crevice corrosion. These properties are essential for marine applications, where materials are frequently exposed to harsh saline environments.
Yes, due to their high strength and toughness, UNS S31803 and S32205 duplex stainless steel sheets and plates are excellent for structural applications, including support frames, load-bearing panels, and other structural components in corrosive environments. They provide a significant strength advantage over conventional austenitic stainless steels, especially in reduced thicknesses which are beneficial for structural designs.