Duplex & Super Duplex Stainless Steel Flanges – Manufacturer, Exporter & Supplier in India

Vandan Alloys supplies and exports Duplex and Super Duplex Stainless Steel Flanges for demanding piping and process applications where higher strength and enhanced corrosion resistance are required. We offer Duplex 2205 and Super Duplex 2507 flanges in different sizes, types, pressure classes and facing configurations as per applicable international standards and customer specifications.

Our range covers Duplex UNS S31803, UNS S32205, Super Duplex UNS S32750 and UNS S32760 Stainless Steel Flanges for industrial and critical service applications.

Duplex & Super Duplex Flange Types

We supply a wide range of flange configurations, including:

• Duplex Stainless Steel Weld Neck Flanges (WNRF)

• Duplex Stainless Steel Blind Flanges

• Duplex Stainless Steel Slip-On Flanges

• Duplex Stainless Steel Socket Weld Flanges

• Duplex Stainless Steel Threaded Flanges

• Duplex Stainless Steel Lap Joint Flanges

• Duplex Stainless Steel Orifice Flanges

• Duplex Stainless Steel Long Weld Neck Flanges

• Duplex Stainless Steel Plate Flanges

• Custom Duplex & Super Duplex Flanges

Flanges can be supplied with Raised Face (RF), Flat Face (FF) or RTJ facing, subject to the applicable size, pressure class and standard.

Duplex 2205 Flanges – UNS S31803 / S32205

Duplex 2205 Stainless Steel Flanges combine good mechanical strength with strong resistance to many corrosive environments. UNS S31803 and UNS S32205 are commonly specified for piping systems where conventional stainless steel grades may not provide the required combination of strength and corrosion resistance.

Duplex 2205 flanges are widely used in oil & gas, chemical processing, petrochemical, marine, offshore and process piping applications.

Super Duplex 2507 Flanges – UNS S32750 / S32760

Super Duplex 2507 Stainless Steel Flanges are designed for more demanding corrosion-resistant applications. UNS S32750 and UNS S32760 provide high strength and enhanced resistance to pitting, crevice corrosion and chloride-containing environments, subject to service conditions.

These flanges are commonly considered for offshore platforms, seawater systems, marine equipment, chemical plants, desalination and demanding oil & gas applications.

Duplex Flange Specifications

Vandan Alloys can supply Duplex and Super Duplex flanges according to project requirements covering:

Grades: UNS S31803, S32205, S32750, S32760
Size: Small bore to large diameter sizes
Pressure Class: 150, 300, 400, 600, 900, 1500 and 2500 Class, where applicable
Facing: RF, FF and RTJ
Standards: ASME B16.5, ASME B16.47, EN 1092-1, DIN, JIS, BS and customer specifications
Material Specification: ASTM A182 for applicable forged flanges
Inspection: Dimensional, visual, PMI, material verification and TPI as specified

Actual dimensions and pressure-temperature ratings depend on the applicable standard, material and configuration.

Applications

Duplex and Super Duplex flanges are selected for applications where a combination of strength, corrosion resistance and reliable flange connection is required.

Typical applications include:

• Oil & Gas Pipelines

• Offshore & Marine Systems

• Petrochemical Plants

• Chemical Processing

• Desalination Plants

• Seawater Piping

• Power Generation

• Heat Exchangers

• Pressure Vessels

• Process Piping

• Refineries

• Industrial Water Systems

Grade selection should be based on pressure, temperature, fluid composition, chloride exposure and other project-specific service conditions.

Inspection & Documentation

Vandan Alloys focuses on material identification, dimensional accuracy and conformity with the specified flange standard. Inspection can include visual inspection, dimensional inspection, PMI and documentation review.

EN 10204 Type 3.1 MTC and Third-Party Inspection (TPI) can be provided when required by the purchase order or project specification.

Custom Duplex & Super Duplex Flanges

We also supply custom and drawing-based Duplex and Super Duplex Flanges for special engineering requirements.

Customer drawings can be used to manufacture or supply flanges with special OD, thickness, bore, PCD, bolt-hole arrangement, facing, hub dimensions and other specified requirements, subject to technical review.

Duplex & Super Duplex Flanges Manufacturer & Exporter from India

Vandan Alloys, based in Mumbai, India, supplies Duplex 2205 and Super Duplex 2507 Flanges for domestic and international requirements.

We work as a Duplex Flanges Manufacturer, Super Duplex Flanges Exporter, Supplier and Stockist in India, supporting standard as well as project-specific flange requirements.

We also supply to customers and industrial buyers in the USA and international markets, with attention to material grade, flange dimensions, inspection requirements and export documentation.

How to Order

For an accurate quotation, please provide:

Size + Flange Type + Grade + Class/PN + Facing + Bore/Schedule + Quantity + Standard + Inspection Requirement + Delivery Location

This helps us identify the correct Duplex or Super Duplex flange specification for your application.

Vandan Alloys 

Manufacturer of All Types of Flanges

3/5, Sakar Bhavan, Ground Floor, 6th  Khetwadi lane, SVP Road ,Mumbai – 400 004. India

TEL+91 022 6610 9925Mobile no: 09892882255  GSTIN:  27AUMPS2067F1ZB

Email: info@vandanalloys.com ; Web: www.vandanalloys.com

Please visit Our Flanges Division:www.vandanalloys.net

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Duplex & Super Duplex Flanges Manufacturer & Exporter in India | Vandan Alloys

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Vandan Alloys supplies Duplex 2205 and Super Duplex 2507 Flanges in WNRF, Blind, Slip-On, Socket Weld and other types. Manufacturer, exporter and stockist in India.

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