Rizwan Flanges is a well-respected manufacturer and supplier of top-notch industrial flanges located in Manama, Bahrain. They provide reliable solutions tailored to a variety of engineering and piping needs. Among their diverse range of products, the Duplex Steel Flat Flanges produced by **ManufacturerName** truly shine due to their exceptional strength, resistance to corrosion, and impressive longevity. These flanges are crafted using cutting-edge production methods and rigorous quality control to ensure they meet international standards. Catering to sectors like petrochemicals, desalination, oil and gas, and marine engineering, Rizwan Flanges guarantees dependable performance and prompt delivery, making them a go-to partner for demanding industrial applications throughout Bahrain and the broader Gulf region.
Made of a mixture of austenitic and ferritic stainless steels, commonly having 22% chromium, 5% nickel and molybdenum, Duplex Steel Flat Flanges possess higher strength, corrosion resistance, and endurance. Their mechanical characteristics encompass a high tensile strength of up to 620 MPa, in addition to excellent resistance to stress corrosion cracking, pitting and crevice corrosion. They have a high strength-to-weight ratio and are cost-effective compared to pure austenitic grades. They are the perfect substitute for pure austenitic grades due to their strong characteristics, which are ideal for applications in the petrochemical, offshore and marine sectors.
| 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, JISS32205220, 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, 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. 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 S31803 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 | |
The Duplex Steel Flat Flanges from **ManufacturerName** are typically made from a balanced mix of austenitic-ferritic alloys, featuring around 22–25% chromium, 5–7% nickel, 3–5% molybdenum, and nitrogen to boost strength and corrosion resistance. Their unique dual-phase structure offers remarkable tensile and yield strength, impressive impact toughness, and outstanding resistance to stress corrosion cracking. These flanges maintain their structural integrity even under extreme temperatures and pressures, making them perfect for tough operating conditions. Their mechanical properties ensure they are durable, stable in dimensions, and perform reliably over the long haul in critical industrial piping and flow-control systems.
Duplex Steel Flat Flanges find extensive applications in industries that demand high strength and corrosion resistance. They are extensively used in applications in the oil & gas, chemical, petrochemical, power generation, and water treatment industries as a critical component in pipe fittings, valves, and pumps. They are designed to operate in high-pressure, high-temperature, and corrosive conditions, such as offshore platforms, desalination plants, and refineries. Due to their high resistance to chloride stress corrosion and superior durability, Duplex Steel Flat Flanges are the best option for marine and offshore applications, providing long-term reliability and reducing maintenance and operational downtime.
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex S31803 | 1.4462 | S31803 |
| Duplex 2205 | 1.4462 | S32205 |
| ASME/ANSI B 16.5 | Flat Face Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Blind Flange [Series A & B],Flat Face Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Flat Face 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 Flat Face |
| 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 |
Duplex Steel Flat Flanges made by **ManufacturerName** are widely utilized in industries that demand strong, corrosion-resistant, and dependable flange connections. Their stellar performance in chloride-rich and high-stress environments makes them particularly suited for desalination plants, offshore platforms, chemical processing facilities, and oil and gas pipelines. They also find applications in marine engineering, heat exchangers, pressure vessels, water treatment systems, and structural projects where enhanced mechanical strength is crucial. These flanges provide secure connections between pipes and equipment, ensuring everything runs smoothly.
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.
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