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The GG 15 steel grade is a popular material in various industries due to its strength and versatility. This comprehensive overview will explore its mechanical properties and chemical composition.
Mechanical Properties:
1. Tensile Strength: GG 15 steel grade typically exhibits a tensile strength of 150-210 MPa. This property makes it suitable for applications requiring high strength and structural integrity.
2. Yield Strength: The yield strength of GG 15 steel grade is typically around 100 MPa. This property ensures that the material can withstand significant loads without permanent deformation.
3. Hardness: GG 15 steel grade has a hardness range of 150-190 HB, indicating its excellent resistance to indentation or abrasion.
4. Ductility: With a ductility of 10-12%, GG 15 steel grade can undergo deformation without fracturing. This property is crucial for applications that require forming or bending processes.
5. Impact Resistance: GG 15 steel grade exhibits good impact resistance, making it suitable for applications subjected to dynamic or sudden loading.
Chemical Composition:
The chemical composition of GG 15 steel grade typically includes the following elements:
1. Carbon (C): GG 15 steel grade contains a carbon content of approximately 2.0-3.0%. Carbon provides strength and toughness to the material.
2. Silicon (Si): Silicon is present in GG 15 steel grade at a percentage of around 1.5-3.0%. It enhances the steel’s fluidity during the casting process.
3. Manganese (Mn): GG 15 steel grade usually contains manganese in the range of 0.5-0.8%. Manganese improves the material’s hardenability and tensile strength.
4. Phosphorus (P) and Sulfur (S): These elements are present in small quantities, usually less than 0.15% each. They promote machinability but can also reduce the material’s strength if present in excessive amounts.
5. Other Elements: GG 15 steel grade may also contain trace amounts of other elements like copper (Cu), nickel (Ni), and chromium (Cr) depending on the specific requirements of the application.
In conclusion, GG 15 steel grade offers a combination of excellent mechanical properties and a well-balanced chemical composition. Its strength, versatility, and resistance to various factors make it a preferred choice in different industries ranging from automotive to construction.
GG 15 Steel grade
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