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S355MC steel chemical composition and physical properties

S355MC steel is a high-strength low-alloy (HSLA) structural steel with the following chemical composition and physical properties:

Chemical composition:
- Carbon (C) : Typical value is 0.12%.
Silicon (Si) : Typical value is 0.50%.
- Manganese (Mn) : Typical value is 1.50%.
- Phosphorus (P) : The maximum value is 0.025%.
- Sulfur (S) : The maximum value is 0.020%.
- Niobium (Nb) : Typical value is 0.09%.
Titanium (Ti) : Typical value is 0.15%.
Aluminum (Al) : Typical value is 0.015%.

Physical characteristics:
- Density: approximately 7850 kg/m3.
- Elastic modulus: approximately 210,000 MPa.
Yield strength: Typical value is 355 MPa.
Tensile strength: between 450 and 550 MPa.
- Elongation at break: The typical value is 20%.

S355MC steel has good machinability and is easy to cut, bend and weld. It has high strength and excellent toughness, and is suitable for applications that withstand dynamic loads and impact loads. S355MC steel is often used in automotive manufacturing, mechanical engineering, structural engineering and pipeline manufacturing. Its chemical composition and physical properties make S355MC steel excellent in applications requiring high strength and lightweight.

It should be noted that the specific chemical composition and physical characteristics may vary by different manufacturers and suppliers, so when using S355MC steel, it is best to refer to the relevant standards, technical data sheets and specific parameters provided by suppliers.