Ronwen Flanges, a top-notch manufacturer and supplier located in Cape Town, South Africa, specializes in high-quality Super Duplex Steel Slip-On Flanges. These flanges are crafted for strength, corrosion resistance, and easy installation in critical industrial systems. They’re perfect for applications that need quick alignment and welding, making them a go-to choice for the oil and gas, petrochemical, marine, and desalination sectors. Built to meet international standards, Ronwen Flanges’ Super Duplex Steel Slip-On Flanges guarantee reliable, leak-proof connections and outstanding durability, even in harsh environments.
These flanges are made from a high-alloy duplex stainless steel that includes 25–28% chromium, 6–7% nickel, 3–5% molybdenum, and trace amounts of nitrogen. This unique blend provides excellent resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. Plus, the dual-phase microstructure gives them impressive tensile and yield strength. The slip-on design makes it easy to position and weld the flange to the pipe, ensuring secure and precise connections.
| 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, M Super Duplex Steel S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Pressure Rating ANSI | Class 150 LBS, 300 LBS, s32760 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 | Presuper-duplex-steel 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, M Super Duplex Steel SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.5, ANSI B16.47(API605), M Super Duplex Steel SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, M Super Duplex Steel 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 Ff52 Super Duplex Steel Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
| Grades | Super Duplex Steel f55, s32750 , s32760 , f53, f52 |
Ronwen Flanges, a leading supplier in Cape Town, South Africa, offers an extensive selection of Super Duplex Steel slip on 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 Slip-On Flanges are utilized widely in high-strength, corrosion-resistant, and durable industries. The flanges are best utilized in oil and gas, chemical processing, marine, and power generation sectors, particularly in offshore platforms, subsea systems, and high-pressure pipelines. They can withstand severe conditions, such as chloride-rich and acidic conditions, and thus find widespread use in fluid and gas transportation systems. Slip-on flanges are easy to install, providing safe connections in high-priority piping. The superior mechanical properties of Super Duplex Steel, including tensile strength and stress corrosion cracking resistance, ensure dependable performance under severe conditions.
| ASME/ANSI B 16.5 | Slip on Flange |
| PRESSURE CLASS | 150, 300, 400, s32760 , 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Blind Flange [Series A & B],Welding Neck Flange |
| PRESSURE CLASS | 75, 150, 300, 400, s32760 , 900 |
| ASME/ANSI B 16.36 | Slip on Flange |
| PRESSURE CLASS | 300, 400, s32760 , 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, s32760 , 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 |
You’ll find these flanges commonly used in pipelines, pressure vessels, heat exchangers, and offshore systems. With a variety of sizes, thicknesses, and pressure ratings available, Ronwen Flanges’ Super Duplex Steel Slip-On Flanges offer a perfect mix of mechanical strength, corrosion resistance, and user-friendliness, making them the preferred choice for demanding applications that require durable, high-performance flange connections.
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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