Ronwen Flanges is a well-respected manufacturer and supplier of Incoloy Socket Weld Flanges based in Cape Town, South Africa. They’ve built a solid reputation for providing high-performance flanging solutions across a variety of industries. With a strong focus on quality, innovation, and customer satisfaction, Ronwen Flanges specializes in crafting socket weld flanges from top-notch Incoloy alloys. These flanges are designed to handle high pressures and temperatures, offering exceptional corrosion resistance even in the toughest environments. Thanks to their advanced manufacturing techniques and a talented team, Ronwen Flanges caters to both local and international markets, delivering reliable, precision-engineered Incoloy socket weld flanges that adhere to global standards and specifications.
Duplex steel weldneck flanges are made from a balanced mixture of austenite and ferritic phases, typically containing 22-25% chromium, 4-7% nickel and 2-3% molybdenum. These materials provide outstanding corrosion resistance especially in acidic environments with high chloride content . Technically duplex steel weldneck flanges provide high tensile strength, excellent fatigue resistance, and toughness making them ideally suited for high-pressure applications. Advantages include increased weldability reduced risk of stress corrosion cracking clean and lower cost due to lower alloy than others stainless steel production. Ideal for critical applications in industries these flanges ensure reliable durable performance under harsh conditions.
| 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, MDuplex Steel S44, ISO70051, JISF51220, 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 |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, F60-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. B.S: BS4504 , BS3293, BS1560, BS10 The other standard: AWWA C207; EN1092-1, GOST12820, JIS F51220; KS B1503, SABS1123; NFE29203; UNI2276 |
| Grades | Duplex Steel S32205, S31803, F51, F60 |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
The Incoloy Socket Weld Flanges produced by Ronwen Flanges in Cape Town, South Africa, primarily consist of nickel, iron, and chromium, with varying amounts of molybdenum, copper, and titanium depending on the specific grade (like Incoloy 800 or 825). These alloys are known for their impressive strength, oxidation resistance, and ability to withstand various acidic and aqueous environments. They boast mechanical properties such as high tensile strength, good yield strength, and remarkable creep resistance, making them perfect for high-stress, high-temperature applications. Each flange is manufactured to strict quality standards, ensuring durability, stability, and long-lasting performance even under extreme conditions.
Duplex steel weldneck flanges are required where strength and corrosion resistance are required. In the oil and gas industry pipelines connect water and treat offshore and onshore flows providing longevity in harsh environments with high chloride levels in chemical plants using these flanges use to transport corrosive materials and benefit from acid and caustic resistance. Power manufacturers rely on duplex steel weldneck flanges for high temperature high pressure piping systems to ensure safe and continuous operation including for use in marine engineering, desalination and wastewater treatment are functional. Where their durable construction and stress-corrosion resistance counteract longevity system reliability and scalability.
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex S31803 | 1.4462 | S31803 |
| Duplex 2205 | 1.4462 | S32205 |
| ASME/ANSI B 16.5 | Welding Neck Flange |
| PRESSURE CLASS | 150, 300, 400, S32205, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Blind Flange [Series A & B],Welding Neck Flange |
| PRESSURE CLASS | 75, 150, 300, 400, S32205, 900 |
| ASME/ANSI B 16.36 | Welding Neck Flange |
| PRESSURE CLASS | 300, 400, S32205, 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, S32205, 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 |
Ronwen Flanges’ Incoloy Socket Weld Flanges are widely utilized in industries that demand reliable, corrosion-resistant piping connections. This includes sectors like petrochemical, marine, power generation, oil and gas, and chemical processing. These flanges are particularly suited for high-pressure, high-temperature systems and are commonly found in heat exchangers, pressure vessels, reactors, and condensers. Their socket weld design ensures a smooth bore and a robust joint, guaranteeing leak-proof performance in critical applications. Ronwen Flanges is committed to ensuring that each flange meets the highest standards of quality and reliability.
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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