UNS S32750 Super Duplex Stainless Steel | Combining High Strength with Excellent Corrosion Resistance

UNS S32750 is a high-alloy super duplex stainless steel featuring a dual-phase microstructure consisting of austenite and ferrite, typically in a nearly 50/50 proportion.

With its high chromium, molybdenum, and nitrogen content, UNS S32750 offers excellent mechanical strength and outstanding resistance to chloride-induced corrosion, as well as superior resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking. Its Pitting Resistance Equivalent Number (PREN) is typically ≥40.

Compared with conventional 316L austenitic stainless steel, UNS S32750 offers significant advantages in mechanical strength and resistance to localized corrosion in chloride-containing environments.

Typical Applications:
▪ Seawater desalination and seawater treatment equipment
▪ Oil and gas exploration and offshore engineering equipment
▪ Petrochemical industry and chemical reactors and processing equipment
▪ Flue gas desulfurization (FGD) and industrial exhaust gas treatment systems
▪ Wastewater treatment and equipment operating in high-chloride environments

UNS S32750 is one of the preferred materials that combines high strength and excellent corrosion resistance for harsh corrosive environments. Please feel free to contact us if you have any requirements.