Breaking Down the Composition and Characteristics of C35 Steel Grade

The C35 steel grade is a medium carbon steel that is widely used in various industrial applications. Breaking down its composition and characteristics gives a better understanding of its properties.

Composition:
– Carbon (C): The carbon content in C35 steel is about 0.32% to 0.39%. This amount of carbon gives it its medium carbon designation and contributes to its strength and hardness.
– Silicon (Si): Silicon is present in small quantities, generally around 0.15% to 0.35%. It helps improve the steel’s strength and resistance to heat.
– Manganese (Mn): Manganese content ranges from 0.50% to 0.90%, which enhances the hardenability and strength of the steel.
– Phosphorus (P): Phosphorus content is limited to a maximum of 0.035% to maintain the steel’s structural integrity and prevent brittleness.
– Sulfur (S): Sulfur content is also limited to a maximum of 0.035% to improve machinability and prevent hot cracking.
– Other Alloying Elements: C35 steel may contain other alloying elements like nickel (Ni), chromium (Cr), and molybdenum (Mo) in small quantities to enhance specific properties.

Characteristics:
– Strength and Hardness: C35 steel possesses good strength and hardness due to its medium carbon content. It is suitable for applications requiring moderate strength and wear resistance.
– Ductility: This steel grade has moderate ductility, allowing for slight deformation without breaking.
– Weldability: C35 steel is relatively weldable, but precautions should be taken to avoid excessive heat input that can lead to cracking.
– Machinability: The addition of sulfur during steel production improves the machinability of C35 steel, making it easier to cut and shape.
– Heat Treatment: C35 steel can be subjected to various heat treatment processes like quenching and tempering to achieve desired properties such as increased hardness and improved wear resistance.

Mechanical Properties:
– Tensile Strength: The tensile strength of C35 steel typically ranges from 600 MPa to 850 MPa, depending on the heat treatment and other variables.
– Yield Strength: The yield strength of C35 steel is approximately 350 MPa to 500 MPa.
– Elongation: The steel exhibits a good elongation of around 16% to 23%, indicating its ability to undergo plastic deformation without failure.
– Hardness: C35 steel usually has a hardness range of 150 HB to 250 HB, which can be further enhanced through heat treatment.

It is important to note that the specifications and properties of C35 steel may vary depending on specific manufacturing processes and standards implemented by different producers. Therefore, it is advisable to refer to the manufacturer’s datasheet or relevant industry standards for precise information.
C35 Steel grade
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