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 (megapascals)
Yield strength: 600 - 800 MPa
Elongation at break: 15 - 25%
Hardness (Brinell): 200 - 250 HB
Modulus of elasticity: 200GPa
Physical Properties:
Density: 7.7 g/cm³
Melting point: approx. 1450 °C
Thermal conductivity: 25 W/(m K)
Electric conductivity: -
Chemical composition (in percent by weight):
Carbon (C): 0.12 - 0.17%
Chromium (Cr): 15 - 17%
Silicon (Si): max. 1%
Manganese (Mn): max. 1%
Phosphorus (P): 0.04% max.
Sulfur (S): max. 0.03%
Heat treatment:
Alloy 1.4057 can be heat treated to improve mechanical properties. The most common heat treatment conditions are:
Soft annealing (QT 800): heating to 800 - 850 °C and subsequent slow cooling in the furnace air or in oil.
Tempering (QT 900): Heating to 950 - 1000 °C and subsequent quenching in oil or water, followed by a tempering temperature of 200 - 300 °C.
Applications:
Alloy 1.4057 is used in a variety of applications including:
Tool making: cutting tools, moulds, 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 given are indicative and may vary slightly depending on the manufacturing process and specific batch. It is recommended to always check the manufacturer's exact specifications.
