Super Duplex Steel Flanges

Q: What maintenance is required for Super Duplex Steel Flanges?

Super duplex steel flanges require minimal maintenance due to their corrosion resistance, but periodic inspections and cleaning may be necessary to ensure optimal performance and longevity.

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Super Duplex Steel Flanges Manufacturer and Exporter in Dubai, UAE.

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Super duplex steel flanges are fittings used in piping systems where super duplex stainless steel is preferred for its exceptional corrosion resistance and mechanical properties. Super duplex stainless steel is a highly alloyed type of duplex steel, containing higher amounts of chromium, molybdenum, and nitrogen than standard duplex steel grades.

Super Duplex Steel 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

Super Duplex Steel Flanges Chemical Composition

Material	C	Mn	Si	P	S	Cr	Mo	Ni	N	Fe
Super Duplex Steel Flanges	0.05 max	1.00 max	1.00 max	0.030 max	0.010 max	24.00 – 26.00	3.00 – 4.00	6.00 – 8.00	0.20 – 0.30	57.61 min

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Super Duplex Steel Flanges Mechanical Properties

Material Product	Tensile Strength ksi	Proof Strength 0.2% ksi (minimum)	Elongation (%) (minimum)	Hardness Rockwell C
Super Duplex Steel Flanges	860	720 minimum	16 minimum	270 maximum

Top Super Duplex Steel Flanges Manufacturing 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.

Super Duplex Steel Flanges Grades

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

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Advantages of Super Duplex Steel Flanges

Exceptional Corrosion Resistance: Super duplex steel flanges offer superior corrosion resistance to standard stainless steels, particularly in highly corrosive environments such as seawater, acidic solutions, and chloride-containing media.
High Strength: They exhibit higher strength than austenitic and standard duplex stainless steels, providing excellent structural integrity and allowing for thinner and lighter constructions.
Excellent Toughness: Super duplex steel flanges have excellent toughness and flexibility, offering resistance to impact and fatigue, which is advantageous in high-pressure and dynamic applications.
Resistance to Stress Corrosion Cracking: They demonstrate exceptional resistance to stress corrosion cracking, a common issue in chloride-rich environments, ensuring reliability and longevity in critical applications.
Good Weldability: Super duplex steel flanges are readily weldable using common welding techniques, allowing for easy fabrication and installation while maintaining mechanical properties.
High-Temperature Resistance: They retain their mechanical properties at elevated temperatures, making them suitable for applications involving high-temperature environments such as heat exchangers and steam piping systems.
Low Thermal Expansion: Super duplex steel flanges have a low coefficient of thermal expansion, minimizing distortion and stress during temperature fluctuations and ensuring dimensional stability in piping systems.
Versatility: Super duplex steel flanges can be used in various industries, including oil and gas, chemical processing, marine, offshore, desalination plants, and power generation.

Types of Super Duplex Steel Flanges

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Super Duplex Steel Flanges Flanges Uses

Application Industry

Super duplex steel flanges are widely utilized across numerous industries for their exceptional corrosion resistance and mechanical properties. Commonly found in demanding environments such as oil and gas, chemical processing, marine, offshore, and desalination plants, these flanges play a pivotal role in ensuring the integrity and reliability of piping systems.

Oil & Gas Industry

Marine Applications

Chemical Processing

Desalination Plants

Oil and Gas Industry: Super duplex steel flanges are widely used in upstream, midstream, and downstream operations, including offshore platforms, pipelines, refineries, and petrochemical plants, where corrosion resistance and strength are crucial.
Chemical Processing: They are employed in chemical processing plants for handling corrosive chemicals, acids, and solvents, ensuring reliability and durability in aggressive environments.
Marine Applications: Super duplex steel flanges find extensive use in shipbuilding, offshore platforms, and port facilities for seawater piping systems, where corrosion resistance and strength are essential.
Desalination Plants: They are crucial components in desalination plants for seawater desalination processes, where resistance to corrosion and high-pressure conditions is required.
Water Treatment: Super duplex steel flanges are used in municipal and industrial water treatment facilities for handling treated water, chemicals, and wastewater, providing durability and reliability in harsh conditions.
Renewable Energy: Wind farms, hydroelectric power plants, and solar energy facilities utilize super duplex steel flanges in water intake and circulation systems, ensuring durability and performance in challenging environmental conditions.

How to Choose the Right Super Duplex Steel Flanges

Identify Application Requirements: Determine the operating conditions such as temperature, pressure, fluid characteristics (including corrosiveness and abrasiveness), and environmental factors (such as exposure to seawater or chemicals).
Material Grade Selection: Select the appropriate super duplex stainless steel grade based on the application requirements, considering corrosion resistance, strength, and temperature resistance. Common grades include UNS S32750 (SAF 2507) and UNS S32760.
Flange Type: Choose the suitable flange type based on the piping system requirements and installation method, such as weld neck, slip-on, socket weld, threaded, lap joint, blind, or spectacle blind flanges.
Size and Dimensions: Ensure that the super duplex steel flanges have the correct size, dimensions, and pressure ratings to match the piping system, including considerations such as pipe diameter, flange class, and face type (e.g., raised face or flat face).
Corrosion Resistance: Verify that the selected super duplex steel grade offers the required level of corrosion resistance for the specific application environment, considering factors such as chloride content, pH levels, and exposure to corrosive substances.
Pressure and Temperature Ratings: Choose super duplex steel flanges with suitable pressure and temperature ratings to withstand the maximum operating conditions of the piping system, including any potential pressure spikes or temperature fluctuations.

Are Super Duplex Steel Flanges weldable?

Yes, super duplex steel flanges are readily weldable using common welding techniques, ensuring ease of fabrication and installation while maintaining mechanical properties.

FAQ (Frequently Asked Questions)

What maintenance is required for Super Duplex Steel Flanges?

Super duplex steel flanges require minimal maintenance due to their corrosion resistance, but periodic inspections and cleaning may be necessary to ensure optimal performance and longevity.

Are Super Duplex Steel Flanges environmentally friendly?

Yes, super duplex steel is a recyclable material, making super duplex steel flanges environmentally friendly and contributing to sustainability efforts.

What measures can be taken to enhance the performance and longevity of Super Duplex Steel Flanges?

Proper material selection, design, fabrication, installation, and maintenance practices are essential for optimizing the performance and longevity of super duplex steel flanges, including avoiding contamination, ensuring proper surface finish, and implementing corrosion protection measures.