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PM Industries - Model Duplex S31803 -Stainless Steel Flange

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Duplex steel (UNS S31803) is one of the toughest grades of all time. The flanges are specially constructed from this grade to deliver timeless services. This grade is also famously known as Alloy 2205. The flanges are built to provide a wide range of applications and to showcase extraordinary qualities. Duplex Steel UNS S31803 Flanges are enriched with multiple characteristics, such as:

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The outstanding corrosion resistance of UNS S31803 flanges is one of their key features. Because of the steel’s duplex microstructure, these flanges are resistant to pitting, crevice corrosion, and stress corrosion cracking, making them appropriate for use in harsh environments comprising chlorides, acids, and seawater. They are commonly used in oil and gas, chemical processing, marine applications, and desalination plants.
UNS S31803 flanges have higher strength than austenitic stainless steel. This grade has high strength, can handle high strength and high-stress conditions, and can reduce weight significantly.
Duplex Steel UNS S31803 is weldable, allowing for simple welding and fabrication during the manufacturing and installation procedures. To retain the correct microstructure and qualities of the flanges, it is critical to follow proper welding processes and avoid excessive heat input.
Duplex Steel UNS S31803 flanges are widely used in critical applications that demand corrosion resistance and strong mechanical strength. They are widely utilised in a variety of industries, such as oil and gas, chemical processing, maritime, offshore, and desalination plants. Operating circumstances, temperature, pressure, flange size, and compatibility with delivered fluids or gases must all be carefully addressed when selecting UNS S31803 flanges. Consultation with engineers or materials specialists is required to ensure the proper selection and safe usage of Duplex Steel UNS S31803 flanges in individual projects, optimizing performance longevity and maintaining the highest safety standards.

Standards: ANSI/ASME B16.5, B16.48, ANSI Flanges, GOST Flanges, DIN Flanges, EN-1092, B16.47 Series A & B, ASME Flanges, EN Flanges, AWWA Flanges, BS Flanges.
JIS Standard: 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
DIN FLANGES: DIN 2527, 2627, 2631, 2656, 2576, 2673, 2629, 2628, 2566, 2641, 2637, 2655, 2634, 2636, 2632, 2633, 2638, 2642, 2573, 2635.
Pressure Rating: Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Types: Threaded, Plate, Screwed, Forged.
Supporting material: Gasket, Ring Joint, Flange Bolts
Size range: 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Production technique: Forged, machined and Heat treated
Available Flange Type: Weld Neck Flanges, RTJ Flanges, Slip On Flanges, Spectacle Blind Flanges, Flanges Gaskets, Square Flanges, Standard Insert Flanges, High Hub Blinds Flanges, Flat Flanges, forged flanges, Weldo / Nipo Flanges, Jacket Insert Flanges, Tongue groove Flanges, Blind Flanges, Socket Weld Flanges, Large diameter Flanges, Long Weld Neck Flanges, Spacer Blinds, SWRF Flanges, SORF Flanges, Angle Face Rings Flanges, Spades Ring Spacers Flanges, WNRF Flanges, Screwed Flanges, Insert Flanges, flanges bolts, cf flange, Lap Joint Flanges, ASME B16.36 Orifice Flanges, Plate Flange, Expander Flanges, Ring Type Joint Flanges, Loose Flanges, Reducing Flanges, puddle flange, Threaded Flanges, blank flange, vacuum flange.
Connect Type/ Flange Face Type: Ring Type Joint (RTJ), Flat Face (FF), Tongue & Groove, Small Male-Female (SMF), Lap-Joint Face (LJF), Raised Face (RF), Large Male-Female (LMF), Small Tongue.
Custom design: As per your drawing
Test: Direct-reading Spectrograph, X-ray detector, UItrasonic flaw detector, Magnetic particle detector, Hydrostatic testing machine.
Origin: Indian / USA / Korean / West Europe / Japan
Pressure Class: PN 6 TO PN 100
Thickness: Normal Pipe Size ≤ 18
Bore Diameter: Normal Pipe ≤ 10
High Temperature: Above 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Low Temperature: Above -29 Degree C (−20°F)
Coating/Surface Treatment:: Zinc Plated, Anti-rust Paint, Oil Black Paint, Yellow Transparent, Cold and Hot Dip Galvanized.
European/African/Russian Standard Flanges: Available
Gaskets Types: Full Face, Metallic Ring, Flat Ring Gasket
Marking Standard Name of Manufacturer
ScheduleType of Flange Facing
Pressure ClassNominal Pipe Size, etc
Test Certificates EN 10204/3.1B, NACE MR0103, NACE MR0175
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc