General information:
Alloy type: 1.4104
Main alloying elements: Iron (Fe), chromium (Cr)
International standard: EN 10088-3
Mechanical properties:
Tensile strength: 550–800 MPa
Yield strength: 270–630 MPa
Elongation at break: 20–40%
Hardness (Brinell): 200 HB
Modulus of elasticity: 200 GPa
Physical properties:
Density: 7.7 g/cm³
Melting point: approx. 1400–1420°C
Thermal conductivity: 25 W/(m·K)
Electrical conductivity: —
Chemical composition, in weight percent:
Carbon (C): 0.08–0.12%
Chromium (Cr): 15–17%
Silicon (Si): max. 1%
Manganese (Mn): max. 1%
Phosphorus (P): max. 0.04%
Sulfur (S): max. 0.03%
Heat treatment:
Alloy 1.4104 can be heat treated in order to improve its mechanical properties. The most common heat treatment conditions are:
Soft annealing (QT 700): Heating to 700–750°C followed by slow cooling in furnace air or in oil.
Quenching and tempering (QT 800): Heating to 800–850°C followed by quenching in oil or water, then tempering at 200–300°C.
Applications:Alloy 1.4104 is used in various applications, including:
Automotive industry: engine components, shafts, bearings
Food industry: knives, cutlery, containers
Household appliances: kitchen utensils, knife blades, tools
Chemical industry: pumps, valves, fittings
Please note that the values stated are guideline values and may vary slightly depending on the manufacturing process and specific production batch. It is recommended to always check the exact specifications provided by the manufacturer.
