General Information: Alloy: 1.4845 (aka AISI 310S, X8CrNi25-21) #
Type: Austenitic stainless steel
Main alloying elements: chromium (25-28%), nickel (19-22%), iron (balance)
Mechanical properties:
Tensile strength: 515 MPa (minimum value)
Yield strength: 205 MPa (minimum value)
Modulus of elasticity: 200GPa
Brinell hardness: 187 HBC
Chemical composition (in percent by weight):
Chromium (Cr): 25-28%
Nickel (Ni): 19-22%
Carbon (C): 0.08% max.
Manganese (Mn): max. 2%
Silicon (Si): max. 1.5%
Phosphorus (P): 0.045% max.
Sulfur (S): max. 0.03%
Nitrogen (N): max. 0.1%
Iron (Fe): balance
Physical Properties:
Density: 7.9 g/cm³
Melting point: approx. 1390°C
Thermal conductivity: 15 W/(m K)
Thermal expansion coefficient: 15.9 µm/m K (20-100°C)
Corrosion resistance: The alloy 1.4845 is characterized by high resistance to oxidizing and reducing atmospheres. It is resistant to many corrosive media such as water, steam, air and weak acids and alkalis at room temperature. However, at higher temperatures, chromium carbides can form, which can affect corrosion resistance.
Applications:
Heat-resistant components in furnaces and incinerators
Heat exchangers and boiler tubes in the chemical industry
Food processing piping
Components for high-temperature gas cleaning
Containers and apparatus for the petrochemical industry
Pipelines for oil and gas production
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.
