​What Certifications Do Super Duplex Steel Threaded Flanges Typically Hold?

        In harsh working conditions such as petrochemicals, Marine engineering and seawater desalination, the super duplex steel threaded flanges produced by Zhejiang Wusheng Pipe Industry Co., Ltd. have become trusted key connection components for global customers with authoritative certifications and outstanding performance.All these flange products have undergone strict testing. They not only fully comply with international standards but also perform exceptionally well in terms of corrosion resistance, high strength and long service life!

        Wusheng's super duplex steel threaded flange has passed core standard certifications such as ASTM A182, ASME B16.5 and EN 1092-1. From material composition to manufacturing process, it strictly adheres to global industry norms. Among them, the ASTM A182 F55 grade certification indicates that the proportion control of key elements such as chromium, molybdenum and nitrogen in the product has reached a precise level, enabling it to have excellent resistance to pitting corrosion in the environment containing chloride ions. This product has simultaneously obtained the PED 2014/68/EU pressure equipment Directive certification of the European Union, providing a complete legal compliance guarantee for entering the European market.

        In response to the special requirements of Marine engineering, Wusheng flanges have obtained NORSOK M-650 certification and their corrosion resistance has been verified through a 1000-hour hydrochloric acid drop test.When used in LNG projects, our product has passed the ISO 15848-1 Class A sealing certification. Even in a low-temperature environment of minus 196 degrees Celsius, it can ensure no leakage at all. All these certifications put together form a comprehensive "qualification stamp" for product quality. Therefore, when undertaking projects in particularly harsh environments like the Middle East and Northern Europe, everyone prefers to choose Wusheng's Franca.

        Super Duplex Steel Threaded Flanges provides a reliable and efficient pipe connection solution, especially suitable for scenarios where welding is limited or not feasible. Wusheng's super duplex steel threaded flange adopts a special alloy formula with a PREN value of ≥40, and its corrosion resistance is more than three times that of 316L stainless steel. In the actual operation of a certain oil refinery in India, this product has been in continuous service for five years without any signs of corrosion, while the average service life of similar products is only two years, fully verifying its outstanding durability.

        The design of threaded connections has significant advantages in installation. Wusheng's super duplex steel threaded flanges can be quickly assembled and disassembled without welding. They are particularly suitable for chemical reaction vessels and offshore platform equipment that require regular maintenance. Previously, there was an FPSO project renovation in Malaysia. Engineers used our flange to install all the pipes, and the time was less than one-third of that of the traditional welding method. The maintenance downtime was significantly reduced at once.

        The quality inspection system runs through the entire production process. Each flange must undergo 100% ultrasonic flaw detection, PMI spectral analysis and -196℃ low-temperature impact test. In the supply of products for the pre-salt oilfield project in Brazil, Wusheng's products passed the third-party inspection by DNV. 2,000 products were accepted with zero defects, setting a new record in the industry.