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Duplex steel tee in the petrochemical field has a broader application prospects, for the following reasons:

Strong corrosion resistance: petrochemical production is often exposed to a variety of corrosive media, such as acids, alkalis, salts, chlorides and so on. Duplex steel tee has excellent resistance to stress corrosion, pitting and crevice corrosion performance, can resist these media erosion, prolong the service life of the equipment, reduce maintenance costs and safety risks caused by corrosion leakage. Like in atmospheric decompression distillation plant, can effectively deal with the corrosion of chlorine-containing media.
High strength and good toughness: duplex steel strength than ordinary stainless steel nearly double, and good toughness and fatigue resistance. In petrochemical high-pressure, high-temperature environments and occasions subject to pressure fluctuations and shock loads, such as hydrogenation devices, long-distance pipelines, etc., dual-phase steel tee can maintain structural integrity, withstand greater pressure and reduce the risk of deformation and rupture.
Good welding performance: compared with ferritic stainless steel and austenitic stainless steel, dual-phase steel welding heat-affected zone grain coarsening and welding hot crack sensitivity is not prominent, easy to install and maintain, can be connected by conventional welding methods, welded to maintain good mechanical properties and corrosion resistance, which is conducive to the manufacture of petroleum and chemical equipment, installation and maintenance of the latter.
Cost-effective: Although the cost of dual-phase steel is higher than ordinary carbon steel and some stainless steel, but taking into account its excellent performance and long service life, the use of dual-phase steel tee in some of the key parts of the high corrosion resistance and strength requirements can reduce the frequency of replacement and maintenance of equipment, and in general can reduce long-term costs, has a high cost-effective.
Material R & D and production progress: With the development of materials science and technology, dual-phase steel R & D continues to make progress, such as TISCO and other enterprises in the economic dual-phase stainless steel and ultra-thick super duplex stainless steel plate development breakthroughs to promote the dual-phase steel Tee in the field of petrochemical applications, more high-performance, low-cost dual-phase steel products to meet the needs of different working conditions.

However, dual-phase steel tee in the petrochemical field is also facing some challenges, such as in the acidic environment of sulfide stress corrosion cracking is more sensitive to the use of environmental pH value and stress levels. At the same time, the high price of some high-performance duplex steels may limit its application in some cost-sensitive areas.