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Duplex Stainless Steel Sheet & Plate S21953 – High-Strength, Corrosion-Resistant Alloy

Duplex Stainless Steel S21953 Sheet & Plate delivers superior strength (550MPa yield) and corrosion resistance (PREN≥35) for demanding structural applications. This lean duplex grade (23Cr-6Ni-3Mo) offers cost-effective performance in chloride-rich environments while maintaining excellent weldability. Available per ASTM A240 in 0.5-100mm thicknesses.
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The Duplex Stainless Steel Sheet & Plate S21953 is a high-performance alloy designed to offer a combination of excellent mechanical properties and superior resistance to corrosion. With its unique duplex structure, which combines austenitic and ferritic phases, this material provides a remarkable balance of strength, toughness, and resistance to stress corrosion cracking. It is widely used in industries such as chemical processing, oil and gas, marine, and power generation, where durability and reliability are paramount.

Key Features of Duplex Stainless Steel Sheet & Plate S21953

  • Corrosion Resistance: S21953 is highly resistant to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride environments, making it ideal for applications in marine and chemical industries.

  • High Strength: With a higher yield strength compared to austenitic stainless steels, S21953 offers superior mechanical performance, making it suitable for high-pressure and structural applications.

  • Excellent Weldability: This alloy is designed for easy welding, offering excellent performance in both automatic and manual welding processes.

  • Good Toughness at Low Temperatures: S21953 maintains its toughness and impact resistance even in low-temperature environments, making it suitable for cryogenic applications.

  • Versatility: Duplex Stainless Steel S21953 is used in a wide range of industries, offering versatility for use in components such as heat exchangers, pressure vessels, and structural supports.

Technical Specifications of Duplex Stainless Steel Sheet & Plate S21953

PropertyValue
MaterialDuplex Stainless Steel S21953
Tensile StrengthUp to 800 MPa (116,000 psi)
Yield StrengthUp to 600 MPa (87,000 psi)
Density7.8 g/cm³
Corrosion ResistanceHighly resistant to pitting, crevice corrosion, and stress corrosion cracking in chloride environments
Temperature ResistanceExcellent performance in temperatures up to 300°C (572°F)

Applications of Duplex Stainless Steel Sheet & Plate S21953

Duplex Stainless Steel Sheet & Plate S21953 is widely used in a variety of demanding applications due to its high strength, corrosion resistance, and versatility. Some common applications include:

  • Chemical Processing: S21953 is used for piping systems, reactors, and heat exchangers in chemical plants where resistance to corrosive chemicals is crucial.

  • Oil and Gas: It is ideal for offshore platforms, risers, and pipelines where resistance to seawater and high mechanical stresses is necessary.

  • Marine: The alloy is highly resistant to seawater corrosion, making it a perfect choice for marine components such as shafts, propellers, and other equipment exposed to the ocean environment.

  • Power Generation: S21953 is used in power plants for components exposed to high temperatures and corrosive environments, such as condensers and cooling systems.

Why Choose Duplex Stainless Steel Sheet & Plate S21953?

Choosing Duplex Stainless Steel Sheet & Plate S21953 ensures excellent performance in demanding applications. This alloy combines high strength and superior corrosion resistance, making it an excellent material for industries that require durability, reliability, and long-term performance under challenging conditions. Whether you need it for chemical processing, marine, or offshore applications, S21953 offers the versatility and resilience needed for critical applications.

FAQ - Frequently Asked Questions

1. What is Duplex Stainless Steel S21953?

Duplex Stainless Steel S21953 is a high-performance alloy with a duplex microstructure, combining both austenitic and ferritic phases. It offers superior mechanical properties, including high strength and excellent resistance to corrosion, especially in chloride environments.

2. What makes S21953 different from other stainless steel alloys?

Compared to standard austenitic stainless steels, S21953 offers higher yield strength and better resistance to stress corrosion cracking, pitting, and crevice corrosion, making it ideal for harsh and corrosive environments like marine and offshore applications.

3. Can Duplex Stainless Steel S21953 be welded easily?

Yes, S21953 is designed to be easily welded with standard techniques like TIG and MIG. The alloy's weldability ensures smooth fabrication and the ability to maintain excellent mechanical properties post-welding.

4. What are the main industries that use Duplex Stainless Steel S21953?

S21953 is commonly used in industries such as chemical processing, oil and gas, marine, and power generation. Its superior corrosion resistance and high strength make it ideal for use in piping systems, heat exchangers, and structural components in these industries.

5. What temperature range is Duplex Stainless Steel S21953 suitable for?

Duplex Stainless Steel S21953 performs excellently at temperatures up to 300°C (572°F), making it suitable for high-temperature applications in industries like chemical processing and power generation.

From the above reading you can know

The Duplex Stainless Steel Sheet & Plate S21953 is a top choice for industries that demand high strength, excellent corrosion resistance, and durability in extreme environments. Whether used in offshore oil rigs, chemical plants, or marine applications, S21953 offers the perfect balance of mechanical performance and long-term reliability, ensuring your industrial projects are built to last.

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