General information:
Alloy: 1.4410, also known as UNS S32750 or SAF 2507
Type: Super duplex stainless steel
Main alloying elements: Chromium (24–26%), nickel (6–8%), molybdenum (3–5%), nitrogen (0.24–0.32%), balance iron
Mechanical properties:
Tensile strength: 800 MPa minimum
Yield strength: 550 MPa minimum
Modulus of elasticity: 200 GPa
Brinell hardness: 270 HB
Chemical composition, in weight percent:
Chromium (Cr): 24–26%
Nickel (Ni): 6–8%
Molybdenum (Mo): 3–5%
Nitrogen (N): 0.24–0.32%
Carbon (C): max. 0.030%
Manganese (Mn): max. 1.20%
Silicon (Si): max. 0.80%
Phosphorus (P): max. 0.035%
Sulfur (S): max. 0.020%
Iron (Fe): balance
Physical properties:
Density: 7.8 g/cm³Melting point: approx. 1350°C
Thermal conductivity: 13 W/(m·K)
Coefficient of thermal expansion: 13.5 µm/m·K (20–100°C)
Corrosion resistance:Alloy 1.4410 belongs to the group of super duplex stainless steels and is characterized by excellent resistance to corrosive media. It offers high resistance to pitting corrosion, stress corrosion cracking, and corrosion fatigue in aggressive environments such as seawater, acidic solutions, and chloride-containing media. This alloy is ideal for applications requiring high strength and excellent corrosion resistance.
Applications:
Offshore and subsea applications
Chemical and petrochemical industry
Seawater desalination systems
Food processing and storage
Oil and gas industry
Heat exchangers and condensers
Construction of piping systems and vessels
Note: This technical data sheet is for informational purposes only and is based on the current state of knowledge up to September 2021. Please note that technical specifications may change over time. It is recommended to obtain current data sheets from manufacturers or technical specialists in order to receive the latest information.
