General information:
Alloy type: 1.4057
Main alloying elements: Iron (Fe), chromium (Cr)
International standard: EN 10088-3
Mechanical properties:
Tensile strength: 700–950 MPa
Yield strength: 600–800 MPa
Elongation at break: 15–25%
Hardness (Brinell): 200–250 HB
Modulus of elasticity: 200 GPa
Physical properties:
Density: 7.7 g/cm³
Melting point: approx. 1450°C
Thermal conductivity: 25 W/(m·K)
Electrical conductivity: —
Chemical composition, in weight percent:
Carbon (C): 0.12–0.17%
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 1.4057 can be heat treated in order to improve its mechanical properties. The most common heat treatment conditions are:
Soft annealing (QT 800): Heating to 800–850°C followed by slow cooling in furnace air or in oil.
Quenching and tempering (QT 900): Heating to 950–1000°C followed by quenching in oil or water, then tempering at 200–300°C.
Applications:Alloy 1.4057 is used in various applications, including:
Toolmaking: cutting tools, molds, injection molding tools
Automotive industry: valves, axles, shafts
Food industry: knives, blades, machine parts for food processing
Chemical industry: pumps, valves, components for chemical plants
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.
