– Tensile Strength: 700-850 MPa
– Yield Strength: 480-600 MPa
– Elongation: 15-20%
– Hardness: 200-275 HB
– Impact Strength: 27 J at 20°C
Technical Properties:
– Density: 7.74 g/cm3
– Thermal Conductivity: 24 W/(m·K)
– Electrical Resistance: 0.55 x10^-6 Ω.m
– Modulus of Elasticity: 200 GPa
Chemical Composition:
– Carbon (C): 0.36-0.42%
– Chromium (Cr): 12-14%
– Manganese (Mn): 1.5% max
– Silicon (Si): 1% max
– Phosphorus (P): 0.04% max
– Sulfur (S): 0.03% max
The 420S45 steel grade is known for its high tensile strength and good resistance to corrosion, making it suitable for industrial use in applications requiring durability and reliability. Its chemical composition, including high levels of chromium, contributes to its corrosion resistance, while its strong mechanical properties make it suitable for use in heavy-duty machinery and equipment. Industries such as automotive, aerospace, and construction rely on 420S45 steel for its strength and durability in demanding environments.
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