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S31803 Duplex Steel Flanges
  • S31803 Duplex Steel FlangesS31803 Duplex Steel Flanges

S31803 Duplex Steel Flanges

Our company has extensive experience in producing S31803 duplex steel flanges and can offer a wide range of high-quality flanges to meet various application needs. We recommend that you visit our website to stay updated with the latest news and developments in our product line. Our online customer service is available to provide timely assistance if you require any help or have specific customization requirements. In addition to the standard product offerings listed on our website, we can also customize S32750 Super Duplex Steel Slip on Flange(S0) to suit your unique needs.

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Product Description

Zhejiang Chengyuan S31803 Duplex Steel Flanges Introduction

S32750 Super Duplex Steel Slip on Flange(S0) is a type of flange made from super duplex stainless steel. Super duplex stainless steel is a highly corrosion-resistant alloy that contains high levels of chromium, molybdenum, and nitrogen. This material provides excellent resistance to pitting and crevice corrosion, making it ideal for use in harsh environments such as the offshore oil and gas industry.


Slip-on flanges are designed to slip over the end of a pipe and are then welded in place. S32750 Super Duplex Steel Slip on Flange(S0) is a popular choice for applications that require high strength, excellent corrosion resistance, and ease of installation. These flanges are commonly used in pipelines, oil rigs, and other offshore structures.


S32750 Super Duplex Steel Slip on Flange(S0) is available in a range of sizes and pressure ratings to suit various application requirements. It can also be customized to meet specific project needs. With its superior corrosion resistance and mechanical strength, S32750 Super Duplex Steel Slip on Flange(S0) is an excellent choice for critical applications where safety and reliability are paramount.

Zhejiang Chengyuan S31803 Duplex Steel Flanges Parameter (Specification)

2507 stainless steel is a duplex stainless steel that offers the combined advantages of ferritic and austenitic steels. It contains high levels of chromium and molybdenum, providing excellent resistance to pitting, crevice, and uniform corrosion. Its dual-phase microstructure makes it highly resistant to stress corrosion cracking, while also providing exceptional mechanical strength.


This steel is widely used in the oil and gas industry for various applications, including heat exchanger tubes, water treatment and supply systems, fire-fighting and water spray systems, water stabilization systems, and high-pressure and seawater pipes. It is also utilized in petrochemical equipment, desalination equipment, and combustion gas purification systems. Its main components are 25% chromium, 7% nickel, 4% molybdenum, and 0.27% nitrogen.

Zhejiang Chengyuan S31803 Duplex Steel Flanges Feature And Application

S31803 Duplex Steel Flanges has several key features and applications, including:



- High resistance to corrosion and erosion, especially in aggressive environments such as seawater and acidic solutions

- Good mechanical strength and toughness, providing reliable performance under high-stress conditions

- Dual-phase microstructure that enhances resistance to stress corrosion cracking and improves fatigue resistance

- Excellent weldability, allowing for easy installation and repair

- Low thermal expansion and high thermal conductivity, making it suitable for high-temperature applications



- Oil and gas industry, particularly in offshore platforms, subsea pipelines, and processing equipment, where high corrosion resistance and strength are essential

- Chemical and petrochemical industries, for applications such as desalination, waste treatment, and chemical processing

- Marine engineering, for seawater piping, heat exchangers, and other equipment exposed to harsh marine environments

- Power generation, including steam turbines, nuclear power plants, and solar power facilities, where corrosion resistance is critical

- Construction, for structural elements and components that require high strength and corrosion resistance, such as bridges, tunnels, and high-rise buildings.


In summary, S31803 Duplex Steel Flanges is a versatile and high-performance material that offers superior corrosion resistance, mechanical strength, and other valuable properties. Its unique combination of features makes it a popular choice for a wide range of applications in diverse industries.

Zhejiang Chengyuan S31803 Duplex Steel Flanges Details

Zhejiang Chengyuan S31803 Duplex Steel Flanges PROCESS flow

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