Vishal Flanges is a well-respected manufacturer and supplier of Super Duplex Steel Lap Joint Flanges, located in Delhi, India. They cater to essential industries by providing high-performance, corrosion-resistant flange solutions. Lap joint flanges are designed to work with stub ends, making them perfect for situations where frequent disassembly is needed for inspection or cleaning. Crafted from top-quality Super Duplex grades like UNS S32750 and S32760, these flanges boast exceptional resistance to chloride stress corrosion, pitting, and crevice corrosion. Vishal Flanges ensures that their lap joint flanges meet ASME, ANSI, and other international standards, serving sectors such as oil & gas, petrochemicals, and marine engineering.
Super Duplex Steel lap joint flanges are made up of approximately 25% chromium, 7% nickel, 4% molybdenum, and balanced nitrogen, manganese, and iron with excellent corrosion resistance and strength. The flanges have excellent mechanical properties with a tensile strength of approximately 800 MPa and a yield strength of approximately 550 MPa. They have an excellent elongation of 25% and hardness typically of the order of 250 HB. They have excellent performance in aggressive environments. Their two-phase microstructure enhances stress corrosion cracking and pitting resistance, making them ideal for harsh industrial applications.
Super Duplex Steel Lap Joint Flanges are made up of 24–26% chromium, 6–8% nickel, 3–5% molybdenum, and 0.2–0.3% nitrogen, which together provide remarkable corrosion resistance and impressive mechanical properties. These flanges can achieve a tensile strength of up to 800 MPa and a yield strength of around 550 MPa, significantly surpassing standard stainless steels. Their dual-phase (austenitic-ferritic) microstructure enhances toughness, fatigue resistance, and overall performance in highly corrosive settings. These characteristics make them ideal for high-pressure and high-stress applications where long-lasting durability and corrosion resistance are crucial
| 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 (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 ASTM A182 FS32950 Super Duplex Steel Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
| Grades | Super Duplex Steel F53, F52, F55, S32760, S32950, S32750 |
Vishal Flanges, a leading supplier in Delhi, India, offers an extensive selection of Super Duplex Steel Lap Joint 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.
Super Duplex Steel lap joint flanges are widely employed in corrosive and high-strength environments, particularly where extreme and corrosive conditions are involved. They are most likely to be utilized in marine engineering, desalination plants, offshore oil and gas platforms, chemical process plants, and offshore platforms based on their high chloride-induced stress corrosion and pitting resistance. These flanges are most appropriate for pipeline fittings where dismantling is required on a frequent basis, due to their loose backing design. They are also used in heat exchangers, pressure vessels, and subsea hardware. Their reliability and strength make them an option for high-pressure and critical service.
| ASME/ANSI B 16.5 | Lap Joint Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Blind Flange [Series A & B],Lap Joint Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Lap Joint 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 lap joint flanges to meet specific project needs. Our team at Vishal Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@vishalflanges.co.in.
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.
Super Duplex Steel Lap Joint Flanges are commonly found in piping systems that require easy assembly and disassembly, particularly in scenarios where regular maintenance, inspection, or cleaning is a must. They are frequently used in both offshore and onshore oil & gas operations, desalination plants, chemical processing facilities, and marine environments, where exposure to harsh chemicals or seawater is commonplace. These flanges work in tandem with stub ends to lower flange costs and enhance corrosion resistance at the weld joint. Their outstanding mechanical strength and excellent resistance to aggressive media make them a reliable choice for demanding applications.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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