Home > Duplex Steel Weldneck Flanges
Yousef Metals stands out as a trusted manufacturer and supplier of Duplex Steel Weld Neck Flanges in Doha, Qatar. We specialize in delivering high-performance flanging solutions tailored for tough industrial settings. With a reputation for quality-focused manufacturing and strict adherence to international standards, Yousef Metals caters to various sectors, including oil and gas, petrochemicals, power generation, and marine engineering. Our duplex steel weld neck flanges are designed to offer exceptional mechanical strength and impressive corrosion resistance, ensuring they remain reliable even in the harshest conditions. Thanks to our advanced production capabilities, thorough quality checks, and prompt delivery, we provide dependable solutions that meet the needs of global projects and clients.
Duplex Steel Weld Neck Flanges are crafted from a unique dual-phase microstructure that features roughly equal parts of austenite and ferrite. The typical composition includes high levels of chromium, moderate amounts of nickel, molybdenum, and nitrogen. This well-balanced alloy structure results in impressive tensile and yield strength, outstanding toughness, and remarkable resistance to stress corrosion cracking. In fact, duplex steel weld neck flanges boast nearly double the strength of standard austenitic stainless steels, while also offering good weldability and stability under high pressure and temperature 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 | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Blind Flanges from Yousef Metals ensures unmatched quality and long-lasting performance. These Flanges are engineered for superior corrosion resistance, strength, and precision, making them ideal for a wide range of industrial applications. With a strong focus on customer satisfaction, timely delivery, and technical expertise. Yousef Metals provides reliable and high-performance Duplex Steel Weldneck Flanges tailored to meet your specific operational and project requirements.
Yousef Metals, one of the leading suppliers of Duplex Steel Weldneck Flanges in Doha, Qatar, offers a wide selection of high-quality flanges suitable for various industrial applications. With an extensive inventory, reliable sourcing, and a strong commitment to quality, service, and timely delivery, Yousef Metals has established itself as a trusted name for premium stainless steel products across the Qatar.
Yes, we provide Duplex Steel Weldneck Flanges to match your exact project requirements. At Yousef Metals, our team is dedicated to delivering tailored flanges solutions that ensure precision and reliability. For more information or personalized assistance, reach out to us at sales@yousefmetals.com.
Duplex Steel Weld Neck Flanges find extensive use in industries that demand both strength and corrosion resistance. You’ll commonly see them in oil and gas pipelines, offshore platforms, chemical processing plants, desalination units, and marine systems. They’re also popular in heat exchangers, pressure vessels, and seawater handling systems. The weld neck design promotes smooth stress distribution and secure joints, making these flanges perfect for high-pressure, high-temperature, and corrosive environments where safety, durability, and a long service life are crucial.
