G35 steel is a high-strength, low-alloy structural steel grade that offers excellent mechanical properties and versatility in various applications.

Mechanical Properties:
1. Tensile Strength: G35 steel exhibits a minimum tensile strength of 510 MPa (74,077 psi), providing excellent resistance to external forces and loads.
2. Yield Strength: The minimum yield strength of G35 steel is 355 MPa (51,496 psi), indicating its ability to withstand significant deformation before failure.
3. Elongation: G35 steel demonstrates a minimum elongation of 22%, highlighting its excellent ductility and ability to bear bending and stretching forces.
4. Hardness: G35 steel has a Rockwell hardness of 95 HRB, indicating its resistance to indentation and wear.

Chemical Composition:
The chemical composition of G35 steel includes the following elements, which contribute to its strength and versatility:

1. Carbon (C): G35 steel contains approximately 0.25% carbon, which enhances its hardness and strength.
2. Manganese (Mn): With a content of about 1.15%, manganese improves the toughness and hardenability of G35 steel.
3. Phosphorus (P): The phosphorus content in G35 steel is limited to a maximum of 0.040%, ensuring good weldability.
4. Sulfur (S): G35 steel has a maximum sulfur content of 0.040%, which improves machinability.
5. Silicon (Si): G35 steel contains approximately 0.30% silicon, contributing to its strength and resistance to corrosion.
6. Copper (Cu): G35 steel may contain traces of copper, which enhances its ability to resist atmospheric corrosion.
7. Other Alloying Elements: G35 steel may also include small amounts of other elements such as vanadium and niobium for improved strength and grain refinement.

Overall, the mechanical properties and chemical composition of G35 steel make it a versatile and strong material suitable for various applications in construction, automotive, and manufacturing industries. Its high tensile and yield strength, along with good ductility and hardness, make it an excellent choice for structural components, such as beams, columns, and bridge elements. Furthermore, its composition ensures good weldability and machinability, making it easier to work with during fabrication processes.
G35 Steel grade