S32750 Pitting-Resistant Super Duplex Stainless Steel Seamless Pipe

Performance

Mechanical performance: Yield strength ≥ 550 MPa, tensile strength ≥ 800 MPa, higher strength than 2205, further realizing the lightweight design of the equipment.
Corrosion resistance: Point corrosion equivalent (PREN) ≥ 40 (usually between 40-45), critical pitting temperature (CPT) ≥ 80 ℃. In extremely high concentrations of chloride ions, high-temperature acidic media, and deep-sea high-pressure environments, the ability to resist pitting corrosion, crevice corrosion, and stress corrosion cracking reaches a top-notch level.
Physics and processing: The density is about 8.03 g/cm ³, and it is recommended to control the continuous working temperature within 280 ℃. Due to the high alloy content and hardness, machining requires the use of hard alloy cutting tools and sufficient cooling.

Applications

Ocean Engineering and Deep Sea Oil Extraction: Subsea Pipelines, Valve Bodies for Deep Sea Oil Extraction Equipment, High Pressure Reverse Osmosis Shells for Seawater Desalination, and High Pressure Pumps.
Extreme chemical environment: high salt wastewater treatment plant, chlorine containing high-pressure reactor, strong acid (such as phosphoric acid, dilute sulfuric acid) concentration plant.
Thermal power environmental protection: flue gas desulfurization devices under harsh working conditions (such as high chloride ion and high-temperature desulfurization slurry environments).