Technical Data Sheet: Alloy 1.4713
General information:Alloy: 1.4713, also known as X10CrAlSi7
Classification: Ferritic stainless steel
Applications: High-temperature applications, heat exchangers, furnace components, exhaust systems
Chemical composition:
Carbon (C): max. 0.12%
Silicon (Si): 0.30–0.70%
Manganese (Mn): max. 1.00%
Phosphorus (P): max. 0.04%
Sulfur (S): max. 0.03%
Chromium (Cr): 6.50–8.00%
Aluminium (Al): 0.30–0.70%
Physical properties:
Density: 7.70 g/cm³
Melting range: 1430–1480°C
Thermal conductivity: 25–30 W/(m·K)
Electrical conductivity: 5–10% IACS
Mechanical properties:
Tensile strength: 450–650 MPa
Yield strength: 250–450 MPa
Elongation at break: 30–40%
Hardness: 150–200 HB (Brinell)
Heat treatment:
Annealing: Between 800°C and 900°C for 1–2 hours, followed by slow cooling in furnace air or with sand or ash.
Corrosion resistance:Alloy 1.4713 offers good resistance to atmospheric corrosion and oxidation at elevated temperatures. However, it is less resistant to strong acids and chloride ions.
Weldability: Alloy 1.4713 has good weldability. However, appropriate protective measures against intergranular corrosion should be taken before welding.
Note: This information is intended as general guidance only and should not be used as the sole basis for design decisions. Before using Alloy 1.4713 in specific applications, it is recommended to obtain more detailed information from manufacturers or technical specialists.
