The technical properties of 420S45 steel grade include a high hardness of approximately 50 HRC, good wear resistance, and moderate corrosion resistance. It has a tensile strength of around 700-1000 MPa and a yield strength of 600-900 MPa. Its thermal conductivity is relatively low, and it has good machinability when in the annealed condition.
The chemical composition of 420S45 steel grade typically includes around 0.15-0.36% carbon, 1% manganese, 1% silicon, 0.04% phosphorus, 0.03% sulfur, 12-14% chromium, and up to 1% molybdenum. This composition provides the steel with its martensitic structure and the properties of high strength and corrosion resistance.
In conclusion, 420S45 steel grade is a versatile and widely used material in various industrial applications due to its excellent mechanical properties and corrosion resistance. Its composition and technical properties make it suitable for a range of applications where high strength and good corrosion resistance are essential.
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