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Duplex Steel Flanges S31803

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Easy Installation

Strong Durability

Cost
Effective

Heat Resistance

Excellent Weldability

Corrosion Resistance

Hudson Flanges is a leading manufacturer and supplier of Duplex Steel Flanges UNS S31803 in the Midlands, UK. Our duplex steel flanges are made from S31803 high performance alloy which combines austenitic and ferritic stainless steel for superior strength, durability and corrosion resistance. These flanges are specially designed to withstand harsh environmental conditions and high pressures making them ideal for industries like oil, gas, petrochemical, power generation, chemical processing etc. Every product meets industry supreme- standards.

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Duplex Steel S31803 Blind Flanges in UK

Duplex Steel S31803 Blind Flanges

Duplex Steel S31803 Slip-on Flanges in UK

Duplex Steel S31803 Slip-on Flanges

Duplex Steel S31803 Lap Joint Flanges in UK

Duplex Steel S31803 Lap Joint Flanges

Duplex steel flanges are made from a balanced mixture of S31803 austenite and ferritic stainless steel typically containing 22% chromium, 5% nickel and molybdenum. These materials provide high strength, corrosion resistance and crack resistance. Technical properties include high tensile strength (up to 620 MPa), good yield strength (450 MPa), and excellent strength. Benefits of duplex steel flange S31803 include resistance to pitting, crack corrosion, and chloride-induced stress corrosion cracking making them ideal for harsh environments. Their high strength to weight ratio, cost and proven longevity in high pressure and high temperature industrial applications resulting.

Table of Contents

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Duplex Steel S31803 Flanges Specification

Specification ASTM A182 / ASME SA182
Size Chart 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Standards 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
Pressure Rating ANSI Class 150 LBS, 300 LBS, S31803 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Test Certificates EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Production Technique Forged, Heat treated and machined
Connect Type/ 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
Special design As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations
Test Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Manufacturer of ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange B.S: BS4504 , BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276

Largest Duplex Steel S31803 Flanges Supplier in Midland, UK

Hudson Flanges, a leading supplier in Midland, UK, offers an extensive selection of Duplex Steel S31803 Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.

Contact us to get a quick quote for your requirement.

We offer These Flanges as per DIN, ISO, JIS or ANSI Standard.

Duplex steel flange S31803 is great for use in applications requiring high strength and corrosion resistance. They are ideal for applications in the oil, gas, petrochemical, chemical and electrical industries. These flanges are commonly used in high-pressure pipelines, heat exchangers, reactors and pressure vessels. Their excellent resistance to stress corrosion cracking, pitting and crevice corrosion makes them suitable for harsh environments such as offshore platforms, marine applications, desalination plants. Duplex Steel Flange S31803 used in water Treatment also for medicinal plants, where reliable in critical situations Provides performance.

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Types of Duplex Steel S31803 Flanges

Duplex Steel S31803 RTJ Flanges in UK
Duplex Steel S31803 RTJ Flanges
Duplex Steel S31803 Forged Flanges in UK
Duplex Steel S31803 Forged Flanges
Duplex Steel S31803 Orifice Flanges in UK
Duplex Steel S31803 Orifice Flanges
Duplex Steel S31803 Weld Neck Flanges in UK
Duplex Steel S31803 Weld Neck Flanges
Duplex Steel S31803 Socket Weld Flanges in UK
Duplex Steel S31803 Socket Weld Flanges
Duplex Steel S31803 Threaded Flanges in UK
Duplex Steel S31803 Threaded Flanges

Duplex Steel Flanges S31803 Equivalent grades

STANDARD UNS WERKSTOFF NR.
Duplex Steel S31803 S31803 1.4462

Chemical Composition of Duplex Steel Flanges S31803

Grade C Mn Si P S Cr Mo Ni N Fe
Duplex S31803 0.030 max 2 max 1 max 0.030 max 0.020 max 22 – 23 3 – 3.50 4.50 – 6.50 0.14 – 0.20 Bal

Mechanical Properties of Duplex Steel Flanges S31803

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi – 116000 , MPa – 800 Psi – 80000 , MPa – 550 15 %

Are Custom Sizes Available for Duplex Steel S31803 Flanges?

Yes, we offer custom sizes for Duplex Steel S31803 Flanges to meet specific project needs. Our team at Hudson Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@hudsonflanges.co.uk.

Material Testing

We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.

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Application Industry of Duplex Steel S31803 Flanges

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