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Duplex flanges

Duplex Flanges: Unmatched Strength and Corrosion Resistance for Demanding Applications

Duplex flanges are engineered for high-performance applications that require a combination of superior strength and corrosion resistance. Made from duplex stainless steel, these flanges are ideal for industries such as oil and gas, chemical processing, and marine. Kwality Steelage Pvt. Ltd., based in Mumbai, India, is a leading manufacturer and exporter of duplex flanges, serving markets in the Middle East, Africa, Asia, Europe, and the Americas.

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What Are Duplex Flanges?

Duplex flanges are specialized piping components crafted from duplex stainless steel alloys, which contain a balanced mix of austenitic and ferritic microstructures. This unique composition provides exceptional mechanical strength and resistance to stress corrosion cracking, pitting, and crevice corrosion, making them ideal for harsh environments.

Key Features and Advantages

Exceptional Corrosion Resistance

Withstands exposure to chlorides, acids, and seawater.
Ideal for marine, chemical, and offshore applications.

High Mechanical Strength

Twice the strength of conventional stainless steel.
Suitable for high-pressure and high-stress systems.

Resistance to Stress Corrosion Cracking

Performs reliably in environments with fluctuating temperatures and pressures.
Reduces the risk of material failure in demanding applications.

Types of Monel Flanges

Weld Neck Flanges

Provides strong and reliable connections.
Ideal for high-stress and high-pressure applications.

Slip-On Flanges

Simplifies installation and alignment.
Suitable for moderate-pressure systems.

Blind Flanges

Seals off the end of a piping system.
Used for maintenance and system isolation.

Threaded Flanges

Screw-on design for easy installation.
Suitable for low-pressure applications.

Socket Weld Flanges

Ensures secure connections for smaller-diameter pipes.
Commonly used in compact high-pressure systems.

Applications Across Industries

Oil and Gas

Handles high-pressure and corrosive fluids effectively.
Used in pipelines, refineries, and offshore platforms.

Chemical Processing

Withstands corrosive chemicals and extreme temperatures.
Commonly applied in reactors, heat exchangers, and pipelines.

Marine and Offshore

Resists seawater corrosion and biofouling.
Suitable for shipbuilding, desalination plants, and offshore platforms.

Power Generation

Suitable for steam and cooling systems.
Provides reliability in thermal and nuclear power plants.

Desalination Plants

Efficiently handles high-salinity water and extreme pressures.
Ensures long-term durability and corrosion resistance.

Material Options and Standards

Material Grades

UNS S31803 (Duplex 2205): Excellent corrosion resistance and strength.
UNS S32205: Improved performance over standard duplex alloys.
UNS S32750 (Super Duplex 2507): Enhanced resistance to extreme conditions.

Compliance with Global Standards

Standard	Description
ASME B16.5	Pipe flanges and flanged fittings.
ASME B16.47	Large-diameter steel flanges.
MSS-SP-44	Steel pipeline flanges.
EN 1092-1	European standard for steel flanges.

Dimensional Standards and Design Specifications

Outer Diameter: Tailored for a wide range of pipe sizes.
Bolt Circle Diameter: Ensures secure and precise connections.
Pressure Ratings: Available in Class 150, 300, 600, 900, and higher.
Face Types: Raised Face (RF), Flat Face (FF), and Ring-Type Joint (RTJ).

Benefits of Carbon Steel Flanges

Reliability

Provides robust and leak-proof connections in critical systems.
Withstands harsh environments for long-term performance.

High-Performance Materials

Twice the strength of standard stainless steel flanges.
Resists mechanical wear, deformation, and cracking.

Wide Range of Applications

Offers long-term value with reduced maintenance costs.
Combines strength and corrosion resistance for diverse applications.

Comparison with Other Flanges

Feature	Duplex Flanges	Stainless Steel Flanges	Monel Flanges
Material Cost	Moderate	Moderate to High	High
Corrosion Resistance	High	High	Very High
Application	Harsh environments	General-purpose	Marine environments

Why Choose Kwality Steelage?

Precision Manufacturing: High-quality duplex flanges built to global standards.
Global Reach: Exporting to key markets in the Middle East, Africa, Asia, Europe, and the Americas.
Custom Solutions: Tailored designs to meet specific industrial requirements.
Expert Support: Comprehensive technical assistance and after-sales service.

Pricing Factors

The cost of duplex flanges depends on:

Material Grade: Higher grades such as Super Duplex 2507 cost more than standard grades.
Size and Pressure Ratings: Larger sizes and higher pressure classes increase costs.
Customization: Non-standard designs may involve additional charges.

Typical price ranges:

Standard Duplex Flanges: $100 – $500.
Super Duplex Flanges: $500 – $1500.

Exporting to Global Markets

Kwality Steelage supplies duplex flanges to key international markets:

We Export Duplex Flanges to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc

Related Products

Stainless Steel flanges

Carbon Steel Flanges

Kwality Steelage is your trusted partner for durable and corrosion-resistant duplex flanges designed to meet stringent industrial requirements. Serving global markets from Mumbai, India, we deliver premium solutions tailored to your operational needs. Contact us today for expert guidance or request a quote to get started!

Duplex flanges

Table of Contents

Table of Contents

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What Are Duplex Flanges?

Key Features and Advantages

Types of Monel Flanges

Applications Across Industries

Material Options and Standards

Dimensional Standards and Design Specifications

Benefits of Carbon Steel Flanges

Comparison with Other Flanges

Why Choose Kwality Steelage?

Pricing Factors

Exporting to Global Markets

Related Products

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