Super Duplex (F53/F55)

AustraliaValves.com’s top-tier range of Super Duplex Stainless Steel (F53 / F55 / UNS S32750 / UNS S32760 / 2507) valves is purpose-built for Australia’s most aggressive industrial and severe service environments. Super Duplex alloys feature an optimized 50/50 austenitic-ferritic microstructure with elevated levels of Chromium (25%), Molybdenum (3.5-4.0%), and Nitrogen, along with intentional Tungsten additions in Grade F55/S32760. This ultra-high alloy formulation delivers exceptional tensile strength and unmatched resistance to localized corrosion, severe pitting, crevice attack, and chloride-induced Stress Corrosion Cracking (SCC) under high temperature and high pressure conditions. Whether your projects require forged Super Duplex ASTM A182 Grade F53 / F55 or cast Super Duplex ASTM A890 / A995 Grade 5A (CE3MN) / Grade 6A (CD3MWCuN) ball, gate, globe, check, and butterfly valves, australiavalves.com guarantees complete material traceability, 3.1 Material Test Certificates (MTC), and full compliance with severe-service requirements. Built to withstand extreme offshore oil & gas production, sour gas processing (NACE MR0175 / ISO 15156), high-pressure reverse osmosis (SWRO) desalination plants, and chemical processing in Perth, Brisbane, Sydney, and nationwide, our Super Duplex valves provide maximum operational uptime where standard duplex and austenitic steels reach their absolute physical limits