Duplex Steel S31803 Flanges

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Duplex Steel S31803 Flanges Manufacturer, Exporter and Supplier in Dubai, UAE.

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Duplex Steel S31803 Flanges are fittings used to connect pipes, valves, and other equipment in pipelines or systems where high strength and corrosion resistance are required. These flanges are made from Duplex Stainless Steel S31803, which is a duplex stainless steel alloy known for its excellent combination of properties, including high strength, corrosion resistance, and good weldability.

Duplex Steel S31803 Flanges Specifications

Specifications	ASTM A182 / ASME SA182
Size	1/8″ NB TO 24″ NB
Standards	ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc
Class / Pressure	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standard	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc
Grades	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Duplex Steel S31803 Flanges Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N	Fe
S31803	0.030 max	2.00 max	1.00 max	0.030 max	0.020 max	22.0 – 23.0	3.0 – 3.5	4.50 – 6.50	0.14 – 0.20	63.72 min

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Duplex Steel S31803 Flanges Mechanical Properties

Grades	Density (g/cm 3)	Density (lb/in 3)	Melting Point (°C)	Melting Point (°F)
S31803	7.805	0.285	1420 – 1465	2588 – 2669

Top Duplex Steel S31803 FlangesManufacturing Company in Dubai

At PipingMart, we take pride in being the largest supplier and manufacturer in the UAE, offering cutting-edge solutions for all your piping needs. With state-of-the-art production plants strategically located in the UAE, we boast a vast inventory of over 25,000 tons of premium-quality materials readily available in stock.

We offer These Duplex Steel S31803 Flanges per DIN, ISO, JIS or ANSI Standard.

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Advantages of Duplex Steel S31803 Flanges

Excellent corrosion resistance: Duplex Steel S31803 flanges offer superior resistance to corrosion, including stress corrosion cracking, pitting, and crevice corrosion.
High strength: These flanges have higher strength compared to standard austenitic stainless steels, allowing them to withstand higher pressures and loads.
Good weldability: Duplex Steel S31803 flanges can be easily welded using common welding techniques, ensuring ease of fabrication and installation.
Enhanced durability: With a balanced microstructure, Duplex Steel S31803 flanges exhibit exceptional durability and long-term performance, even in harsh environments.
Cost-effectiveness: Despite their superior properties, Duplex Steel S31803 flanges offer a cost-effective solution compared to other corrosion-resistant alloys.
Resistance to chloride stress corrosion cracking: Duplex Steel S31803 flanges demonstrate high resistance to chloride-induced stress corrosion cracking, making them suitable for marine and offshore applications.
Versatility: These flanges are suitable for a wide range of applications across various industries, including oil and gas, chemical processing, and pulp and paper.
Good thermal conductivity: Duplex Steel S31803 flanges exhibit good thermal conductivity, facilitating efficient heat transfer in process systems.

Types of Duplex Steel S31803 Flanges

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Duplex Steel S31803 Flanges Uses

Application Industry

Duplex Steel S31803 flanges find widespread industrial applications across various sectors due to their exceptional properties. In the oil and gas industry, they are utilized in piping systems for offshore platforms, subsea pipelines, and refineries, where corrosion resistance and high strength are paramount. Chemical processing plants rely on Duplex Steel S31803 flanges for their resistance to corrosive chemicals and harsh environments, ensuring reliable performance in reactors, vessels, and piping. Moreover, they play a crucial role in marine applications, including shipbuilding and desalination plants, thanks to their resistance to chloride-induced corrosion.

Oil & Gas Industry

Aviation Industry

Pharma Industry

Chemical Processing

Oil and Gas Industry: Used in piping systems for offshore platforms, subsea pipelines, and refineries due to their corrosion resistance and high strength.
Chemical Processing: Applied in reactors, vessels, and piping systems where resistance to corrosive chemicals is essential for reliable performance.
Marine Applications: Utilized in shipbuilding and desalination plants for their resistance to chloride-induced corrosion, making them suitable for marine environments.
Pulp and Paper Mills: Employed in various equipment and piping systems within pulp and paper manufacturing for their durability and resistance to corrosive chemicals.
Power Generation: Used in power plants for piping systems, valves, and other components due to their excellent corrosion resistance and high strength.
Wastewater Treatment: Applied in wastewater treatment plants where resistance to corrosive substances and durability are crucial for prolonged service life.

How to Choose the Right Duplex Steel S31803 Flanges

Identify Application Requirements: Determine the specific requirements of your application, including operating conditions, pressure, temperature, and fluid or gas type.
Assess Corrosion Resistance: Evaluate the corrosion resistance properties of Duplex Steel S31803 flanges and the environment in which they will be used. Consider factors such as exposure to corrosive chemicals, saltwater, or high-chloride environments.
Consider Pressure and Temperature Ratings: Ensure that the Duplex Steel S31803 flanges have appropriate pressure and temperature ratings to handle the conditions of your application safely and effectively.
Select Flange Type and Size: Choose the appropriate flange type (e.g., weld neck, slip-on, socket weld, or blind) and size based on the requirements of your piping system and compatibility with existing components.
Evaluate Standards and Specifications: Check if the Duplex Steel S31803 flanges meet relevant industry standards and specifications, such as ASME, ASTM, or ANSI, to ensure quality and compliance with regulations.

Are Duplex Steel S31803 Flanges suitable for welding?

Yes, Duplex Steel S31803 flanges are suitable for welding. In fact, they are known for their good weldability, which allows them to be easily welded using common welding techniques such as gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), shielded metal arc welding (SMAW), and flux-cored arc welding (FCAW).

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FAQ (Frequently Asked Questions)

What precautions should be taken when welding Duplex Steel S31803 flanges?

It’s essential to follow proper welding procedures and techniques, ensure adequate preheating and post-weld heat treatment as necessary, and use filler materials compatible with Duplex Steel S31803 to achieve strong and reliable weld joints.

What are the pressure and temperature ratings of Duplex Steel S31803 flanges?

The pressure and temperature ratings of Duplex Steel S31803 flanges depend on factors such as flange type, size, and design specifications. It’s essential to consult relevant standards and guidelines to determine the appropriate ratings for specific applications.

Are Duplex Steel S31803 flanges available in different sizes and types?

Yes, Duplex Steel S31803 flanges are available in various sizes, types (e.g., weld neck, slip-on, socket weld, blind), and pressure classes to suit different piping system requirements.