General information:
Alloy type: 1.4125
Main alloying elements: Iron (Fe), chromium (Cr), molybdenum (Mo)
International standard: EN 10088-3
Mechanical properties:
Tensile strength: 800–1000 MPa
Yield strength: 650–850 MPa
Elongation at break: 12–25%
Hardness (Rockwell): 54–60 HRC
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): 0.45–0.55%
Chromium (Cr): 14–15.5%
Molybdenum (Mo): 0.8–1.3%
Silicon (Si): max. 1%
Manganese (Mn): max. 1%
Phosphorus (P): max. 0.04%
Sulfur (S): max. 0.03%
Heat treatment:Alloy 1.4125 can be heat treated in order to improve its mechanical properties. The most common heat treatment conditions are:
Soft annealing: Heating to 800–850°C followed by slow cooling in furnace air or in oil.
Quenching and tempering: Heating to 980–1050°C followed by quenching in oil or water, then tempering at 200–300°C.
Applications:
Alloy 1.4125 is used in various applications, including:
Knife industry: high-quality knife blades, surgical instruments
Food industry: cutting tools, containers
Chemical industry: pumps, valves, fittings
Aerospace: components requiring high strength and corrosion resistance
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.
