Duplex Stainless Steel Flanges

Table of Content

Duplex Stainless Steel Flanges Supplier
Types of Grade S31803 / S32205 Duplex Steel Flanges
ASME SA 276 Duplex SS Flanges Specifications
Chemical Composition of ASTM 276 Duplex Stainless Steel Flanges
Size Chart for ASTM A182 Duplex Steel Flanges
Duplex SS Flanges Mechanical Properties
Benefits of S31803 / S32205 Duplex Steel Flanges
Duplex Steel Flanges Applications
FAQs

Best Price of 2205 Duplex WNRF Flanges Exporter, Ferritic / Austenitic Duplex Steel 2205 Industrial Flanges, Stockholder Of Duplex Steel S31803 RTJ Flange, ASME SA182M Duplex Steel S32205 Class 300 Flange Wholesaler, Duplex Flat Flange, Duplex EN 1092-1 Flanges.

Duplex Stainless Steel Flanges Supplier

Lakshya Steel is leading supplier of Duplex stainless steel flanges offer excellent resistance to weathering and have strong mechanical strength. Our Duplex stainless steel flanges are available in various sizes and dimensions to meet customer requirements. These flanges are ideal for use in extreme conditions and in highly volatile areas where welding can be dangerous. Duplex S31803 / S32205 Flanges at our in-house production center, specializing in flanges made from rare metals. We follow a rigorous quality control process, where every product is thoroughly tested and evaluated based on various parameters. Our Duplex Steel UNS S31803 Blind Flanges are precisely made to function as reliable, water-proof seals for pipe ends, offering excellent resistance to general corrosion. We also supply ASME SA182 Duplex Steel UNS S32205 Weld Neck Flanges, which are perfect for use in seawater environments and power generation equipment. These flanges feature smooth surfaces that can withstand temperatures up to 600°F while ensuring optimal flow characteristics.

Our Duplex Steel DIN 1.4410 Socket Weld Flanges are engineered to handle gases up to 600 psi and are carefully packaged and shipped to the nearest port for your convenience. The seamless coordination between our production and sales teams enables us to supply our products worldwide. We offer a wide range of Duplex Steel ASTM A182 Flanges, including Duplex 2205 Slip On Flanges, Duplex Steel S31803 Weld Neck Flanges, Duplex F51 Socket Weld Flanges, Gr. F52 Duplex Blind Flanges, Duplex Steel F56 Orifice Flanges, Duplex Steel S32205 Spectacle Blind Flanges, Duplex Steel F60 Screwed/Threaded Flanges, Duplex Steel F61 Reducing Flanges, and Duplex 2205 Ring Type Joint Flanges (RTJ), among others.

For more details on Duplex Stainless Steel Flanges, you can check out our blog on Duplex Blind Flanges.

These ASME SA182 Duplex Steel Flanges are available in various sizes, shapes, specifications, and thicknesses to meet our clients’ specific requirements. They are widely used in industries such as Chemical, Oil & Gas, Fertilizer, and Engineering. Duplex Stainless Steel S31803 & S32205 Welded Flanges are highly recommended for their excellent stress corrosion cracking (SCC) resistance, a property inherited from the ferritic side of stainless steel. Duplex Steel Flanges, containing elements like chromium, molybdenum, and nitrogen, provide strong resistance against chloride pitting and crevice corrosion. Additionally, due to their lower nickel and molybdenum content compared to austenitic stainless steels, Duplex stainless steels offer similar corrosion resistance at a more economical cost.
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Types of Grade S31803 / S32205 Duplex Steel Flanges

Duplex Steel UNS S31803 Flanges

Duplex Stainless Steel 2205 Flanges

Factors to Consider When Choosing Duplex Steel Flanges

Pressure Rating and Temperature: Ensure the flange meets your project’s pressure and temperature requirements.
Size and Dimensions: Match the flange size to the pipe and check dimensions for a secure fit.
Corrosion Resistance and Material: Choose the right Duplex steel alloy for your environment and application.
Flange Face and Finish: Select the correct flange face (flat, raised, or ring joint) and surface finish (smooth, serrated, or grooved).
End Connections and Joining: Pick the appropriate connection type (butt-weld, socket-weld, threaded, or flanged) based on your system’s needs.

Duplex Stainless Steel Flanges Specifications

Standard	ASTM A182 / ASME SA182
Dimensions	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Flange Size Chart	1/2″ (15 NB) to 48″ (1200NB), DN10~DN5000
Pressure Rating	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS	16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K
Flange Connection / Flange Face Type	Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe.
Origin	West Europe / Japan / Indian / USA / Korean
Types of Flanges	Threaded / Screwed / Forged / Plate
Coating	Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Production technique Used	Heat treated, Forged and Machined
Equipment	Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc.
Test Certificates	EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc

Chemical Composition of Duplex Stainless Steel Flanges

The chemical composition of duplex steel flanges typically includes elements such as:

Chromium (Cr): Provides corrosion resistance.
Nickel (Ni): Contributes to strength and toughness.
Molybdenum (Mo): Enhances corrosion resistance, especially in chloride environments.
Nitrogen (N): Improves strength and corrosion resistance.
Iron (Fe): The base element providing structural integrity.

The exact composition may vary depending on the grade and specific requirements of the application.

Size Chart for Duplex Steel Flanges

Type	Dimension range *	Drawing**
Duplex Steel Blind Flanges Duplex Steel Blind Flanges	DN15 – DN2500 ½ “- 24”	DIN2527 PN16 DN150 BL 300lb 6 “
Duplex Steel Threaded with neck Duplex Steel Threaded Flanges	DN15 – DN150 ½ “- 24”	DIN2566 DN32 / 42.4 TH 300lb 1 “
Flanges smooth for welding	DN15 – DN2500	DIN2576 DN150
Duplex Steel Welding neck Duplex Steel Welding Neck Flanges	DN15 – DN2500 ½ “- 24” Dy10 – Dy2400	DIN2635 DN150 / 168.3 WN 300lb 6 “GOST Dy150 Py16
Duplex Steel loose flanges, smooth Bunde	DN15 – DN2500	DIN2642 DN150
Duplex Steel loose flanges Stub	DN15 – DN2500	DIN2673 DN150
Duplex Steel Welding flanges with neck Duplex Steel Slip On Flanges	DN15 – DN2500 ½ “- 24” Dy10 – Dy2400	DIN86030 DN150 SO 300lb 6 ” GOST
Duplex Steel Lap Joint Flanges	½ “- 24”	LJ 300lb 6 “
Duplex Steel Socket Welding Flanges	½ “- 3”	SW 300lb 6 “

410 Stainless Steel Fasteners Types

Duplex Stainless steel Flanges Mechanical Properties

The mechanical properties of duplex steel flanges depend on factors such as grade, manufacturing process, and heat treatment. However, typical mechanical properties include:

Tensile Strength: Typically ranging from 620 to 900 MPa, depending on the grade and condition.
Yield Strength: Varies between 450 and 700 MPa, influencing the material’s ability to withstand deformation under load.
Elongation: Generally, ranges from 25% to 30%, indicating the material’s ductility.
Hardness: Typically, in the range of 20 to 35 HRC (Rockwell hardness), depending on the grade and heat treatment.

Benefits of S31803 / S32205 Duplex Stainless Steel Flanges

Corrosion Resistance: Superior resistance to corrosion compared to conventional stainless steel.
High Strength: Greater tensile and yield strength for improved reliability and durability.
Cost-Effectiveness: Long-lasting performance reduces maintenance costs, making them economical.
Versatility: Can handle a wide range of temperatures and pressures, suitable for diverse applications.
Stress Corrosion Cracking Resistance: Effective against stress corrosion cracking in harsh environments.

Duplex Steel Flanges Applications

– Petrochemical Industries
– Cement Industries
– Chemical Industries
– Oil & Gas Industries
– Power Plant Industries
– Shipbuilding Industries
– Fertilizer Industries
– Sugar Industries
– Engineering Projects

FAQs

What is a Duplex Stainless Steel Flange?

A duplex stainless steel flange is made from a type of stainless steel that combines both austenitic and ferritic structures. This unique composition gives it higher resistance to stress corrosion cracking compared to regular austenitic grades like 304 and 316 stainless steel. However, it has slightly lower toughness and impact strength. Common grades of duplex stainless steel flanges include 2205, F51, F53, and F60.For more information, please contact us.

When should I use duplex flanges?

Use duplex flanges for high-strength, corrosion-resistant applications in harsh environments, such as marine, chemical, and high-pressure systems.

What are the different types of duplex flanges?

The different types of duplex flanges include weld neck, slip-on, socket weld, threaded, and blind flanges. Each type serves specific purposes and installation methods.

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