Rached Flanges stands out as a top manufacturer and supplier of Super Duplex Steel Long Weld Neck Flanges right in Tunis, Tunisia. They specialize in delivering high-performance flange solutions tailored for critical piping applications. Thanks to their cutting-edge manufacturing technology and rigorous quality assurance practices, Rached Flanges produces long weld neck flanges that boast exceptional strength, smooth stress distribution, and impressive corrosion resistance. They adhere to international standards to guarantee reliability, even in the toughest operating conditions. Catering to industries like oil and gas, petrochemical, offshore, marine, and power generation, the company is dedicated to precision engineering, customized specifications, timely delivery, and ensuring long-term operational reliability.
These Super Duplex Steel Long Weld Neck Flanges are crafted from alloys rich in chromium, nickel, molybdenum, and nitrogen, which results in a well-balanced duplex microstructure. The chromium content provides outstanding corrosion resistance, while molybdenum enhances protection against pitting and crevice corrosion. Nitrogen plays a key role in boosting yield strength and toughness. As a result, these flanges exhibit high tensile and yield strength, excellent fatigue resistance, good impact properties, and remarkable resistance to stress corrosion cracking, making them perfect for high-pressure and high-temperature applications.
| 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, 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 (F), 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 ASTM A182 F53 Super Duplex Steel Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
| Grades | Super Duplex Steel S32750, F53, S32760, F55, S32950, F52 |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Rached Flanges, a premier supplier in Tunis, Tunisia, specializes in high-quality Super Duplex Steel Long Weld Neck Flanges, valued for their exceptional durability, corrosion resistance, precise engineering, and suitability across diverse industrial applications.
Long Weld Neck Flanges of Super Duplex Steel find extensive application in high-strength demanding industrial conditions with excellent corrosion resistance. Super Duplex Steel Long Weld Neck Flanges find their best usage in high-pressure piping systems for offshore oil and gas platforms, petrochemical plants, and refineries. The long neck offers extra strengthening, which allows them to handle extreme temperatures and pressures. Usage includes pipeline spools, pressure vessels, and heat exchangers. Their chloride-induced stress corrosion cracking resistance makes them useful in desalination and marine industries. They are also used in chemical processing, power generation, and pulp and paper industries where durability and consistent flow control are required.
| ASME/ANSI B 16.5 | Long Weld Neck Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Long Weld Neck Flange [Series A & B],Welding Neck Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Long Weld Neck Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| PRESSURE CLASS | PN 2.5 TO PN 40 |
| BS 4504[PART 1] | Hubbed Slip-On |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Hubbed Slip-On Hubbed Threaded |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Plate Slip-On Flange, Slip-On Boss Flange |
| TABLE | D, E, F, H |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| PRESSURE CLASS | PN 6 TO PN 100 |
Yes, we offer custom sizes for Super Duplex Steel Long Weld Neck Flanges to meet specific project needs. Our team at Rached Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@rachedflanges.com.
You’ll find Super Duplex Steel Long Weld Neck Flanges in critical applications where strength and structural integrity are non-negotiable. They’re commonly used in high-pressure oil and gas pipelines, offshore and subsea systems, petrochemical and chemical processing plants, and power generation facilities. Their extended neck design is particularly suited for thick-walled pipes and challenging service conditions. Additionally, they find applications in heat exchangers, pressure vessels, and marine installations, ensuring reduced stress concentration, a long service life, and dependable performance in corrosive environments.
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