A Comprehensive Guide to 35S20 Steel Grade: Properties, Uses, and Benefits

[ad_1] 35S20 steel is a medium carbon steel with a medium tensile strength and good machinability. It is commonly used in the automotive industry for making components such as gears, shafts, and cylinders. The following are the technical, mechanical, and chemical properties of 35S20 steel:

Technical Properties:
– Density: 7.85 g/cm3
– Thermal Expansion: 11.5 x 10^-6 /K
– Thermal Conductivity: 48.3 W/m.K
– Electrical Resistivity: 0.000014 ohm.cm
– Modulus of Elasticity: 210 GPa

Mechanical Properties:
– Tensile Strength: 400-600 MPa
– Yield Strength: 355 MPa
– Elongation at Break: 25%
– Hardness: 187-229 HB

Chemical Composition (in weight %):
– Carbon (C): 0.32-0.39%
– Silicon (Si): 0.15-0.35%
– Manganese (Mn): 0.60-0.90%
– Phosphorus (P): Max 0.050%
– Sulphur (S): Max 0.050%

Benefits and Uses:
– Good machinability due to its medium carbon content
– Suitable for components that require medium tensile strength
– Widely used in automotive applications such as gears and shafts
– Can be heat treated to improve its mechanical properties

In conclusion, 35S20 steel is a versatile and commonly used grade of steel with good mechanical properties and machinability. It is suitable for various automotive components and can be further enhanced through heat treatment.
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