Hudson Flanges is a renowned Duplex Steel Spectacle Flanges manufacturer and supplier in the Midlands, UK. Our duplex steel spectacle flanges are engineered for superior strength, corrosion resistance and reliability making them ideal for demanding industrial applications. These flanges are designed to provide safe and secure connections to piping systems ensure proper flow control and prevent leaks in temporary and permanent installations. When combined with austenitic and ferritic stainless steel our duplex steel spectacle flanges provide excellent resistance to corrosion, high pressure, and excessive heat. This leads to longer life and reduced maintenance in industries such as oil and gas, chemical and power generation.
Duplex steel spectacle flanges are made from a mixture of austenite and ferritic stainless steel. Typically containing 22% chromium, 5% nickel and molybdenum this unique material provides exceptional corrosion resistance, strength and durability. Technical properties include high tensile strength (up to 620 MPa) low stress cracking resistance, excellent pitting and cracking resistance. Advantages of duplex steel glass flanges include strong- high net-to-weight ratio, reliability under extreme temperature and high pressure conditions. The flanges are ideal for offshore, petrochemical and marine applications, providing reduced maintenance and higher efficiency.
Specification | ASTM A182 / ASME SA182 |
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Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
Standards | ANSI/ASME B16.48, B16.47 Series A & B, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.48/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 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 B16.18, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 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 ASTM A182 s32205 Duplex Steel Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
Grades | Duplex Steel s31803, f51, s32205, f60 |
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 |
Hudson Flanges, a leading supplier in Midland, UK, offers an extensive selection of Duplex Steel Spectacle 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.
Duplex Steel Spectacle Flanges are widely used in applications requiring high strength and corrosion resistance. They are commonly found in the oil and gas, petrochemical and chemical industries, power generation and water treatment. These flanges are ideal for applications requiring safe and leak-proof connections such as pipeline systems valves and pressure vessels. Duplex Steel Spectacle flanges are particularly suitable for high pressure, extreme temperature and corrosion areas with coasts residential and marine applications included. Their excellent resistance to stress corrosion cracking and pitting makes them a reliable choice for critical and complex applications.
STANDARD | WERKSTOFF NR. | UNS |
Duplex S31803 | 1.4462 | S31803 |
Duplex 2205 | 1.4462 | S32205 |
Yes, we offer custom sizes for Duplex Steel Spectacle 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.
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.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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