Nascent Pipe & Tubes is a reliable producer and distributor of Duplex Steel S31803 Tubes throughout the world, with excellent capabilities of corrosion resistance and mechanical effect to be utilized in the most crucial industrial segments. Our UNS S31803, which is also called ASTM A789 by its universal standard name, is designed to perform strongly in varied fields that cover and may include marine, chemical processing, and oil & gas industries. The tubes that are supplied as seamless welded tubes under this standards are capable of high pressure and temperature and offer high fatigue strength and stress-corrosion cracking resistance.

The special two-phase microstructure of Duplex Steel S31803 combines both austenitic and ferritic stainless phases of stainless steel material, producing a high strength, as compared to standard stainless steels such as 304 or 316. The dual-phase structure, as well, enhances good resistance to pitting and crevice corrosion hence is very appropriate in low and harsh media chloride media.