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Super Duplex 2507 Flanges Applications

Stainless Steel Blind Flange | Flange Slip On | Slip On Raised Face Flange | Slip On Reducing Flange | Weld Neck Flange | Weld Neck Reducing Flange | Flat Face Weld Neck Flange | Neck Weld Flange | Stainless Steel Weld Neck Flanges | Weld Neck Flange Raised Face | Weldneck Flange | Raised Face Weld Neck | Raised Face | Lapped Flange | Raised Face Flange | Tongue And Groove Flange | Slip Flange | Reducing Flange Weld Neck | Stainless Steel Threaded Flange | Hub Blind Flange

SORF Flange | RF Flange | SWRF | Flange WN | WNRF | FF Flange | RFWN Flange | SW Flange | SO Flange | BLRF | BLRF Flange | RFWN | Flange WNRF | LWNRF | LWNRF Flange | LJ Flange | FFWN | FFSO Flange | Flange SOFF | Flange SWRF | NB Flange | Rtj Weld Neck Flange | FFWN Flange | Flanges Manufacturers In India | ASME B16.47 |  S A 182 | SS Flanges

Oshwin Overseas a leading manufacturer, exporter and supplier of Super Duplex S32760 Flanges (ASTM A182 / ANSI B16.5 / F55). Oshwin Overseas offers a complete range of Super Duplex Stainless Steel (1.4501) Flange such as Blind Flange, Slip On Flange, Slip On Raised Face (SORF Flange), Slip On Flat Face Flange (SOFF Flange), Lap Joint Flange (LJ Flange), Weld Neck Flange (WN Flange), Weld Neck Raised Flange (WNRF Flange), Threaded Flange, Socket Weld Flange, Socket Weld Raised Face (SWRF) Flange, Raised Face Weld Neck Flange (RFWN Flange), Reducing Flange, Flat Face Flange (FF Flange), Flat Face Slip On (FFSO Flange), Flat Face Weld Neck (FFWN), Ring Joint Flange, Long Weld Neck Flange (LWNRF Flange), Plate Flange, Raised Face Flange (RF Flange), Orifice Flange, Spectacle Flange and Spectacle Blind Flange. We are one of the leading Stainless Steel Flange Manufacturer who can weld Super Duplex S32760 Flange (A182 F55) in various sizes and dimensions. They have special quality finishing and duress for long life, high pressure and zero defects.

All Super Duplex Stainless Steel Flanges (UNS S32760) are offered with an NACE 3.1 Certification, Mill Test Certification and ISO 17025 Standards by a Government of India approved Laboratory. Positive Material Identification is done on all raw material procured at Oshwin Overseas. Super Duplex S32760 (1.4501) Flange (ASTM A182 / ANSI B16.5) can be manufactured and supplied in a variety of sizes and pressure ratings to meet project specific requirements of our customers. Our Super Duplex Stainless Steel (A182 F55) Flanges are widely supplied to many industries including boiler manufacturing, brewing tanks and desalination plants.

Super Duplex Flanges F55 UNS S32760 (ASTM A182 / ANSI B16.5) are generally lower in cost, as lower percentage of alloying element is used in the manufacturing of Duplex Stainless Steel Flange. The yield strength of Super Duplex Stainless Steel (1.4501) SS Flanges is higher compared to austenitic stainless steel flange, as a result of which users can purchase relatively lower thickness Super Duplex Stainless Steel (A182 F55) Flange.

Oshwin Overseas also stocks and supplies a complete range of SS Flange (ASTM A182 / ANSI B16.5) like Blind Flange, Slip On Flange, Lap Joint Flange (LJ Flange), Weld Neck Flange (WN Flange), Weld Neck Raised Flange (WNRF Flange), Threaded Flange, Slip On Flat Face Flange (SOFF Flange), Flat Face Slip On (FFSO Flange), Socket Weld Flange, Socket Weld Raised Face (SWRF) Flange, Reducing Flange, Flat Face Flange (FF Flange), Ring Joint Flange, Long Weld Neck Flange (LWNRF Flange), Plate Flange, Raised Face Flange (RF Flange), Raised Face Weld Neck Flange (RFWN Flange), Orifice Flange, Slip On Raised Face (SORF Flange), Spectacle Flange and Spectacle Blind Flange to complement our existing production range of Super Duplex S32760 Flanges. Super Duplex Stainless Steel (1.4501) Flange (ASTM A182 / ANSI B16.5) are used in Petro-Chemical Industry, Oil and Gas Industry, Nuclear Industry, Pulp & Paper Industry, Research & Development, Mega Projects & Defence & Development Industries.

Super Duplex S32760 (1.4501) Flange Specification :-

Specifications : ASTM A182, ASME SA182, F55 (A182 F55), ANSI B16.5, ANSI B16.47, ANSI B16.48 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings.

Dimensions : DIN, ASTM, BS and all International Standards.

Size : ½” (15 NB) to 48″ (1200NB).

Grade : EN 1.4501, UNS S32760.

Pressure Rating : Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

Types : Blind Flange, Slip On Flange, Lap Joint Flange (LJ Flange), Weld Neck Flange (WN Flange), Threaded Flange, Socket Weld Flange, Socket Weld Raised Face (SWRF) Flange, Slip On Raised Face (SORF Flange), Slip On Flat Face Flange (SOFF Flange), Raised Face Weld Neck Flange (RFWN Flange), Weld Neck Raised Flange (WNRF Flange), Reducing Flange, Flat Face Flange (FF Flange), Flat Face Slip On (FFSO Flange), Flat Face Weld Neck (FFWN), Ring Joint Flange, Long Weld Neck Flange (LWNRF Flange), Plate Flange, Raised Face Flange (RF Flange), Orifice Flange, Spectacle Flange and Spectacle Blind Flange.

Our Super Duplex Stainless Steel (UNS S32760) Flanges conforms to NACE MR0175 / ISO 15156.

Types of Super Duplex Flange (UNS S32760)

Weld Neck Flange

Welding Neck Flanges or Weldneck Flange (WN Flange) are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting. The long tapered hub provides an important reinforcement for use in several applications involving high pressure, sub-zero and / or elevated temperatures. The smooth transition from flange thickness to pipe or fitting wall thickness effected by the taper is extremely beneficial, under conditions of repeated bending, caused by line expansion or other variable forces.

UNS S32760 Slip-On Flange

UNS S32760 Slip On Flange (SO Flange)

1. Slip On flange 2. Filled weld outside 3. Filled weld inside 4. Pipe

Socket Weld Flange (SW Flange)

Socket Weld flanges were initially developed for use on small-size high-pressure piping. Their static strength is equal to Slip On flanges, but their fatigue strength 50% greater than double-welded Slip On flanges. The connection with the pipe is done with 1 fillet weld, at the outside of the flange. But before welding, some space must be created between flange or fitting and pipe.

Super Duplex UNS S32760 Lap-Joint Flange

Super Duplex UNS S32760 Lap Joint Flange (LJ Flange)

1. Lap Joint flange 2. Stub End 3. Butt weld 4. Pipe or Fitting

Threaded Flange

Stainless Steel Threaded Flange are used for special circumstances with their main advantage being that they can be attached to the pipe without welding. Sometimes a seal weld is also used in conjunction with the threaded connection. Although still available in most sizes and pressure ratings, screwed fittings today are used almost exclusively in smaller pipe sizes. A threaded flange or fitting is not suitable for a pipe system with thin wall thickness because cutting threads on a pipe is not possible.

ASTM A182 UNS S32760 Blind Flange

UNS S32760 Blind Flange (BL Flange)

Flat Face Flange (FF Flange)

The Flat Face (FF) flange has a gasket surface in the same plane as the bolting circle face. Applications using flat face flanges are frequently those in which the mating flange or flanged fitting is made from a casting. These pipe flanges are used when the counter-flanges are flat-face. They are mainly used to connect to cast iron equipment, valves and specialties. This flat face flange has a gasket surface in the same plane as the bolting circle face. Flat face flanges are never to be bolted to a raised face flange.

F55, ASTM A182 UNS S32760 raised face flange

Super Duplex UNS S32760 Raised Face Flange (RF Flange)

ASTM A182 UNS S32760 Ring Type Joint Flange

UNS S32760 Ring Type Joint (RTJ) Flange

Spectacle Flanges

This is a pressure retaining plate with one solid end and one open end connected with a web or tie-bar. In normal operation, the open end forms the seal between two flanges and permits normal flow of fluid through pipe work. If the solid end is swung into position it effectively blanks of the pipe and halts the flow.

Duplex Steel 2507 Orifice Flanges

Duplex Steel 2507 Orifice Flanges

Long Neck Flanges

Owing to our rich industrial experience, we are offering a comprehensive range of Long Weld Neck Flanges. The professionals of our organization source these neck flanges from trusted vendors. These flanges are unique due to their simple connectivity with other pipes. Moreover, our products are extensively used in refining industries for linking purposes. Our esteemed patrons can avail these qualitative range of flanges from us at industry-leading prices.

Super Duplex Steel UNS S32760 Reducing Flange, astm a182, f55

Super Duplex Steel UNS S32760 Reducing Flange

UNS S32760 Weld Neck Flange

UNS S32760 Weld Neck Flange (WN Flange)

1. Weld Neck Flange 2. Butt Weld 3. Pipe or Fitting

Slip On Flange (SO Flange)

The calculated strength from a Slip On flange (SO Flange) under internal pressure is of the order of two-thirds that of Welding Neck flanges, and their life under fatigue is about one-third that of the latter. The connection with the pipe is done with 2 fillet welds, as well at the outside as also at the inside of the flange. The X measure on the image, are approximately Wall thickness of pipe + 3 mm. This space is necessary, to do not damage the flange face, during the welding process.

Super Duplex UNS S32760 Socket Weld Flange

Super Duplex UNS S32760 Socket Weld Flange (SW Flange)

1. Socket Weld flange 2. Filled weld 3. Pipe X = Expansion gap

Lap Joint Flange (LJ Flange)

Lap Joint Flanges have all the same common dimensions as any other flange named on this page however it does not have a raised face, they used in conjunction with a “Lap Joint Stub End”. These flanges are nearly identical to a Slip On flange with the exception of a radius at the intersection of the flange face and the bore to accommodate the flanged portion of the Stub End. Their pressure-holding ability is little, if any, better than that of Slip On flanges and the fatigue life for the assembly is only one tenth that of Welding Neck flanges. They may be used at all pressures and are available in a full-size range.

astm a182, f55 uns s32760

Super Duplex 2507 Threaded Flange

1. Threaded flange 2. Thread 3. Pipe or Fitting

Blind Flange (BL Flange)

Blind Flanges are manufactured without a bore and used to blank off the ends of piping, Valves and pressure vessel openings. From the standpoint of internal pressure and bolt loading, blind flanges, particularly in the larger sizes, are the most highly stressed flange types. However, most of these stresses are bending types near the center, and since there is no standard inside diameter, these flanges are suitable for higher pressure temperature applications.

F55 Flat Face Flange

Super Duplex Steel UNS S32760 Flat Face Flange (FF Flange)

Raised Face Flange (RF Flange)

These pipe flanges are the most commonly used flanges. The raised face thickness for 150# and 300# are included in the specified flange thickness and for higher rating they are not included in the flange thickness. The Raised Face (RF) type is the most applied flange face, and is easily to identify. It is referred to as a raised face because the gasket surfaces are raised above the bolting circle face.

Ring Type Joint (RTJ) Flange

These pipe flanges are most reliable type of flange joint but are costlier than the other type of flanges. The Ring Type Joint flanges are generally used in high pressure (Class 600 and higher rating) and/or high temperature services above 800°F (427°C). A flange is a forged or cast ring of steel designed to connect sections of pipe or join pipe to a pressure Vessel, pump or any other integral flanges assembly.

Super Duplex UNS S32760 Spectacle Flanges

Super Duplex UNS S32760 Spectacle Flanges

Orifice Flanges

The function of an orifice flange is to provide access to a line for metering of gasses or liquids. An orifice plate is clamped between a pair of flanges when installed in a line and the whole assembly is refer to as an orifice flange union. Jack-screws within the assembly facilitate removal of the orifice plate. The orifice plate, the metering device, consists of a thin plate with a concentric, square edge, circular hole in the center. Two pressure tap-holes are drilled in each flange to measure pressure difference through the orifice.

Super Duplex Steel UNS S32760 Long Neck flanges

Super Duplex Steel UNS S32760 Long Neck flanges

Reducing Flange

Reducing Flanges are used in place of standard flanges to allow for a change in pipe size. The flange consists of one specified diameter with a smaller diameter bore size. Except for the bore and hub dimensions, a reducing flange has dimensions of the larger pipe size. Welding neck, slip-on, and threaded flanges can be reducers, and are considered an economical means to make a pipe size transition. Reducing Slip On Flange, Reducing Weld Neck Flange.

GradeTypeUnified Numbering System (UNS)Forgings GradesWerkstoff-nr.EuronormAFNORDIN Standards
Zeron 100Super DuplexS32760F551.4501en 1.4501X2CrNiMoCuWN25-7-4Z3CNDUW25-07Azdin 1.4501
Material Specification Form Raw Material SpecificationDimension Standard
Super Duplex S32760 FlangesLong weld-neck flange, Plate flange, Blind flange, Slip-on flange, Large diameter flange, Spectacle blind flange, Square flange, Orifice flange, Lap-joint flange, Threaded flange, Socket-weld flange, Weld-neck flangeSuper Duplex steel round barASTM A182 F55 / ASME A182 F55 UNS S32760ASME B 16.5 / B 16.47
AISI B16.5 / B16.47
Flat Face (FF) Flanges
Male-Female (M/F) Face Flanges
Tongue-Groove (T/G) Face Flanges
Raised Face (RF) Flanges
Ring Type Joint (RTJ) Flanges
Dimensional StandardSize RangeRating
ASME B16.5 / ANSI B16.5 / API 590½” to 24”Class 150 to 2500 Lbs
ASME B 16.48 / ANSI B 16.4824” to 60”Class 150 to 900 Lbs
DINDN10 to DN3600PN6 to PN160
ASME / ANSI B16.361” to 24”Class 300 to 2500 Lbs
ASME B16.47 / ASME B 16.48 /API 60526” to 60”-
BS 329326” to 48”Class 150 to 600 Lbs
API 6A2 1/16” to 30”2000 Psi to 20000 Psi
Super Duplex Stainless Steel F55, ASTM A182 Manufacturer Exporter
Super Duplex Steel Flanges ASTM A182 UNS S32760 Flanges Supplier and Manufacturer Oshwin Overseas, is an ISO certified company with 25 years of experience.
Brand: Oshwin Overseas
Manufacturer: Ulma - Spain, Metalfar - Italy, Mellesi - Italy, Oshwin Overseas - India, Massoti - Italy, Siddhagiri Metals and Tubes- India
Model: ASTM A182 UNS S32760, F55
Product ID: OSH - 2507FL
Characteristics of Duplex UNS S32760
  • High Resistance to uniform corrosion.
  • High Resistance to pitting & crevice corrosion.
  • High Resistance to stress corrosion cracking & corrosion fatigue
  • High mechanical strength
  • High Resistance to abrasion & erosion
  • High Resistance to Fatigue
  • High energy absorption
  • Low thermal expansion
  • Good weld ability with care in thick sections
  • Useful up to 600°F


Applications of Super Duplex 2507
  • Chemical Processing Industry – Transport and Storage, pressure vessels, tanks, piping, and heat exchangers.
  • Oil and Gas exploration and processing equipment – piping, tubing, and heat exchangers
  • Marine Industry and Seawater systems – Cargo Tanks for Ships, High chloride environments,
  • FGD / Effluent Scrubber Systems.
  • Paper and Pulp Industry Digesters, Bleaching equipment and Stock-Handling Systems, Chip Pre-steaming vessels.
  • Food Processing Equipment.
  • Flue gas desulfurization / cleaning equipment
  • Rotors, fans, shafts, and press rolls requiring combined strength and corrosion resistance
  • Biofuels Plant, Desalination plants
  • Firewalls and blast walls on offshore platforms


UNS S327600.03 max24.0-26.01.0 max3.0-4.06.0-8.00.2-0.30.03 max1.0 max0.01 max0.5-1.0
0.2% Proof Stress (N/mm2 ) [ksi] minimum550[79.8]
Tensile Strength (N/mm2) [ksi] minimum750 [116]
Elongation (%) minimum25
Hardness (HBN)270 max
Reduction of Cross Section Area (%)45
Density (Kg.m-1)7810
Magnetic Permeability33
Young’s Modulus (N/mm2)199 x 103
Specific Heat, 20°C (J.Kg-1.°K-1)475
Fracture Toughness, Kq (MPa.m)98
Specific Electrical Resistance, 20°C (µO.m)0.80
Thermal conductivity, 20°C14.2
Mean coefficient of thermal expansion11.1 x 10-6

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  • Commercial Invoice including HS Code
  • Packing List including number of boxes, net weight, gross weight, Marks & Numbers
  • Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
  • Material Test Certificates as per EN 10204 3.1, EN 10204 3.2
  • Test Certificates certifying NACE MR0103, NACE MR0175


  • Positive Material Identification – PMI Testing
  • Chemical Analysis – Spectro Analysis
  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177


The different ways in which our products are packed are:

  • Shrink-wrapped
  • Wooden Boxes
  • Wooden Pallets
  • Wooden Crates
  • Carton boxes


We mark Duplex 2205 as needed with the most suitable & visible marking techniques. Standard Marking System :-

  • Manufacturer’s Name or Trademark
  • Material Designation
  • Size Designation
  • Rating Designation
  • Melt Designation
  • Marking for Identification

Duplex 2205 Experiance - Oshwin Overseas

Leading Supplier, Manufacturer Exporter

More than 30 years of Experiance
Duplex 2205 Mill Test Report

Mill Test Report Provided

In Accordance with EN10204 NACE 3.1, NACE 3.2
Duplex 2205 Fast Delivery

Fast Delivery

Warehouse near to Airport & Port.
Duplex 2205 Shipping

Efficient & Cost Effective Shipping Services

We Offer EXW – Ex Works, FOB, CFR, CIF, DDU, etc.
Duplex 2205 Inspection


3rd Party Inspection is Carried out
Oshwin Overseas - ISO Certified

ISO 9001:2008 Certified

Duplex 2205 Quality Product

Quality Product

Transparent client dealing, No False Assurance, 100% Fulfillment of Commitments.
Duplex 2205 Export

Worldwide Exporter

Export to more than 70 Countries Worldwide
Duplex 2205 Price

Best Price

Competitive pricing is offered
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Super Duplex UNS S32760 Flanges - F55
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