General information:
Alloy: 1.4410 (also known as UNS S32750, SAF 2507)
Type: Super Duplex Stainless Steel
Main alloying elements: chromium (24-26%), nickel (6-8%), molybdenum (3-5%), nitrogen (0.24-0.32%), iron (balance)
Mechanical properties:
Tensile strength: 800 MPa (minimum value)
Yield strength: 550 MPa (minimum value)
Modulus of elasticity: 200GPa
Brinell hardness: 270 HB
Chemical composition (in percent by weight):
Chromium (Cr): 24-26%
Nickel (Ni): 6-8%
Molybdenum (Mo): 3-5%
Nitrogen (N): 0.24-0.32%
Carbon (C): 0.030% max.
Manganese (Mn): max. 1.20%
Silicon (Si): 0.80% max.
Phosphorus (P): 0.035% max.
Sulfur (S): max. 0.020%
Iron (Fe): balance
Physical Properties:
Density: 7.8 g/cm³
Melting point: approx. 1350°C
Thermal conductivity: 13 W/(m K)
Thermal expansion coefficient: 13.5 µm/m K (20-100°C)
Corrosion resistance:
The alloy 1.4410 belongs to the super duplex stainless steels and is characterized by excellent resistance to corrosive media. It offers high resistance to pitting corrosion, stress corrosion cracking and fatigue corrosion in aggressive environments such as seawater, acidic and chlorinated solutions. This alloy is ideal for applications that require high strength and excellent corrosion resistance.
Applications:
Offshore and underwater applications
Chemical and petrochemical industry
Seawater desalination systems
Food processing and storage
Oil and gas industryheat exchangers and condensers
Construction of pipelines and vessels
Note: This technical data sheet is for informational purposes only and is based on the current state of knowledge as of September 2021. Please note that technical specifications are subject to change over time. It is recommended that current data sheets be obtained from manufacturers or professionals for the latest information.
