As a leading duplex stainless steel pipes manufacturer in China, we provide a comprehensive range of seamless, ERW, and welded piping solutions designed for corrosion-resistant and high-strength applications. Our products are manufactured in compliance with ASME B36.19 and ASTM A790/ASME SA790 standards to ensure reliable performance in harsh environments. Available grades include UNS S32750, UNS S32760, and UNS S31803, offering excellent resistance to pitting, stress corrosion cracking, and chloride-rich conditions. With sizes from 1/2 inch to 36 inches and wall thicknesses from 2 to 50 mm, our duplex pipes meet diverse industrial and marine requirements.