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G25 steel grade is a high-strength, low-alloy steel that is known for its exceptional durability and corrosion resistance. It is commonly used in a variety of industries such as construction, automotive, and aerospace. The material’s mechanical properties, chemical composition, and manufacturing process contribute to its outstanding performance.
Mechanical Properties:
– Tensile Strength: G25 steel grade has a minimum tensile strength of 580 MPa, making it highly resistant to external forces and impacts.
– Yield Strength: The minimum yield strength of G25 steel grade is 410 MPa, indicating its ability to withstand deformation without permanent damage.
– Elongation: G25 steel grade exhibits a minimum elongation of 22%, which means it can stretch before breaking, making it suitable for applications involving bending or forming.
Chemical Composition:
– Carbon (C): The carbon content in G25 steel grade is typically between 0.20% and 0.25%. Carbon enhances the steel’s strength, hardness, and wear resistance.
– Silicon (Si): Silicon is added to improve the steel’s strength and heat resistance.
– Manganese (Mn): Manganese is a key element that enhances the steel’s hardenability, strength, and toughness.
– Phosphorus (P) and Sulfur (S): These elements are limited to a maximum of 0.035% each to ensure the steel’s cleanliness and improve its weldability.
– Chromium (Cr): Chromium is added to G25 steel grade to enhance its corrosion resistance and provide a protective oxide layer.
– Nickel (Ni): Nickel is used to improve the steel’s toughness and resistance to corrosion and high temperatures.
– Copper (Cu): Copper is sometimes added to enhance the steel’s atmospheric corrosion resistance.
Manufacturing Process:
G25 steel grade is typically produced through a controlled alloying process, where the required chemical elements are added in precise amounts to achieve the desired properties. The steel is then carefully processed through heating, rolling, and cooling to obtain the final product with its exceptional durability and corrosion resistance.
Overall, G25 steel grade is a versatile material that offers excellent mechanical properties, such as high tensile and yield strength, along with good elongation. Its chemical composition and precise manufacturing process contribute to its exceptional durability and corrosion resistance, making it suitable for various demanding applications.
G25 Steel grade
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