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Duplex and Super Duplex Steel Flanges



ASTM A182 Duplex Steel S31803 and S32205 Flanges Supplier in Mumbai India.

Super Duplex Steel S32750 and S32760 Flanges - Slip on, Weld Neck, Blind, Socket weld, Threaded etc.

ANSI B16.5 Duplex and Super Duplex Steel Pipe Flange Stockist and Supplier in Mumbai India.


Duplex stainless steel offers very good stress corrosion cracking resistance. Similar to the austenitic stainless steel duplex stainless steel grades offer a range of corrosion resistance. As such corrosion resistance depends mostly on the composition of stainless steel.


Preston Pipes and Alloys manufactures quality products with the latest technologies using top-notch quality raw material. Duplex and Super Duplex Steel Flanges are often demanded by our customers due to its strength, toughness, and ductility. Before packing the flanges, certain markings are done on each product one by one such as Degree, Size, Grade, Lot No, and company’s trademark.


Test certificates:
Material test certificates such as 100% radiography test report, Third party inspection report, and raw material tests certificates are provided in accordance to EN 10204/3.1B. Soon after the manufacturing process of goods, they are immediately sent for quality assurance. Products are tested by quality inspectors on various parameters. Mechanical testing, Flattening test, Hardness test, Macro, and Micro test, hardness test, Pitting resistance test, Intergranular corrosion (IGC) test, Positive material testing – PMI test and many more are conducted by quality inspectors.


Packing:
The utmost reason behind packing goods is to prevent damage from external sources. Packing of end products is done with the help of bubble wraps or plastic wrapping; this creates a protective layer on the surface of the product. Then they are safely placed in wooden cases, plywood crates or boxes so as to evade risk of transportation damages.


Documentation:
Duplex and Super Duplex Steel Flanges are manufactured in accordance with national and international quality standards. Commercial invoice, certificate of origin legalized, fumigation certificate, quality assurance plan, heat treatment chart, material test certificate, packing list including net weight and gross weight of the product, guarantee letter and many more.


We also manufacture goods on special request of the client’s. This helps us in creating a wide client base in the marketplace.

Equivalent Grades
STANDARD WERKSTOFF NR. UNS
Duplex Steel 1.4462 S31803 / S32205
Super Duplex Steel 1.4410 S32750 / S32760
Duplex & Super Duplex Steel Flanges

Standard Specification
Specifications :
Dimensions :
Standard :
Size :
Class/Pressure :
Flange Face Type :
Form :
ASTM A182 / ASME SA182.
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
1/2" (15 NB) to 48" (1200NB)
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Slip on flanges, Socket weld flanges, Forged flanges, Blind flanges, Welding neck flange, Ring type joint flange, Spectacle blind flange, Reducing flange, Threaded / Screwed flange, Tongue and Groove flange, Long weld neck flange, Plate flange, ASME B16.5 flange

Chemical Composition
Grade C Mn Si P S Cr Mo Ni N Fe
S31803 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22.0 – 23.0 3.0 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min
S32205 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 21.0 – 23.0 2.50 - 3.50 4.50 – 6.50 0.8 – 0.20 63.54 min
S32750 0.030 max 1.20 max 0.80 max 0.035 max 0.020 max 24.00 – 26.00 3.00 – 5.00 6.00 – 8.00 0.24 – 0.32 58.095 min
S32760 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

Mechanical Properties
Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S31803 / S32205 7.805 0.285 1420 – 1465 2588 – 2669
S32750 / S32760 7.8 0.281 1350 2460

Types Of Duplex and Super Duplex Steel Flanges
Duplex and Super Duplex Steel Flange

Duplex Steel WNRF Flange

Super Duplex Steel RTJ Flanges

Duplex Steel Slip On Flanges

Super Duplex Steel Socket Weld Flange

ASTM A182 Duplex Steel Forged Flange

ASME SA 182 Duplex Steel Blind Flanges

Super Duplex Steel Welding Neck Flange Supplier

Duplex Ring Type Joint Flanges Exporter

Duplex Steel Spectacle Blind Flanges

Super Duplex Steel Reducing Flange

Flange Equivalent Grades

Duplex 2205 Threaded Flange

WERKSTOFF NR. 1.4462 Tongue and Groove Flange

Super Duplex Steel 2507 Long Weld Neck Flanges

Super Duplex 2507 Plate Flanges

ASME B16.5 Duplex Steel WNRF Flanges

Super Duplex Steel S32750 Screwed Flange

Duplex Steel S31803 Flate Face Flanges

Super Duplex Steel S32760 Raised Face Flanges

Duplex Steel S32205 Ring Type Joint Flanges

DIN 1.4410 SORF Flange


Application Industry

Duplex and Super Duplex Steel Flanges are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of slip on flanges, socket weld flanges, forged flanges, blind flanges etc. through a worldwide network of stock-keeping branches. These are use in various industries like :


Application Industry
  • Chemical Industry
  • Oil & Gas Industry
  • Petrochemical Industry
  • Power Genration Industry
  • Sugar Industry
  • Food Processing Industry
  • Paper & Pulp Industry
  • Offshore and Onshore Services

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1601, 16th Floor, Ankush Apartment, 10th Khetwadi Lane, Khetwadi, Girgaon, Mumbai - 400004, Maharashtra, India