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45# Alloy Is A Medium-Carbon Steel Offering High Strength, Durability, And Machinability.
45# Alloy is a medium-carbon steel known for its high strength, durability, and good machinability. It is widely used in applications that require a combination of toughness and wear resistance. Due to its balanced composition, 45# Alloy offers a good mix of mechanical properties suitable for various structural and engineering uses.
Chemical Composition:
45# Alloy contains the following key elements:
Carbon (C): 0.42-0.50% – The carbon content in 45# Alloy is higher compared to low-carbon steels, providing increased strength and hardness while maintaining reasonable ductility.
Manganese (Mn): 0.60-0.90% – Manganese enhances the steel's hardness and tensile strength, improves its toughness, and aids in deoxidization during the steelmaking process.
Silicon (Si): ≤0.35% – Silicon contributes to the steel’s deoxidization and helps in improving its mechanical properties and surface finish.
Phosphorus (P): ≤0.035% – Low phosphorus content ensures that the alloy remains tough and avoids brittleness.
Sulfur (S): ≤0.035% – Sulfur is kept low to reduce inclusions and improve the alloy's machinability and overall strength.
Mechanical Properties:
45# Alloy provides a robust set of mechanical properties suitable for a range of demanding applications:
Tensile Strength: 600-850 MPa – The high tensile strength makes 45# Alloy suitable for components that need to withstand significant pulling or stretching forces.
Yield Strength: ≥400 MPa – This yield strength indicates the alloy’s capability to endure substantial stress without permanent deformation.
Elongation: ≥15% – The elongation percentage indicates good ductility, allowing the material to be deformed and shaped without breaking, which is crucial for various fabrication processes.
Density: Approximately 7.85 g/cm³ – Typical for medium-carbon steels, providing a balanced ratio of strength to weight.
Hardness: HB 170-229 – The hardness range provides good wear resistance and machinability, making it suitable for high-stress applications.
Applications:
45# Alloy's balanced chemical composition and mechanical properties make it suitable for a variety of applications:
Machinery Parts: Used in the manufacturing of gears, shafts, and other components that require high strength and durability.
Automotive Components: Ideal for producing parts such as crankshafts, camshafts, and other engine components that need to withstand high stresses and wear.
Structural Elements: Employed in construction and structural engineering for components like beams, columns, and frames where strength and toughness are critical.
Tools and Dies: Used in the production of tools and dies that need to resist wear and maintain their shape under high-stress conditions.
General Engineering: Suitable for various engineering applications requiring a balance of strength, toughness, and machinability.
Summary:
45# Alloy is a medium-carbon steel that provides a strong combination of high tensile strength, good machinability, and wear resistance. Its chemical composition and mechanical properties make it suitable for demanding applications in machinery, automotive components, structural engineering, and tool production. With its balanced properties, 45# Alloy offers reliability and durability for a wide range of industrial uses.
Main Products
Stainless Steel Series304,304L,321,316L,317L,309s,310s,904L,410,420,430,441,409,436,441,439,630 etc.
Duplex stainless steel series 2205,2507 etc.
Hastelloy C-276, B-2, C-2000, etc.
Nickel-based alloy series Inconel625,718,Incoloy825,800H,Monel400, etc.
High temperat... Main Products
Stainless Steel Series304,304L,321,316L,317L,309s,310s,904L,410,420,430,441,409,436,441,439,630 etc.
Duplex stainless steel series 2205,2507 etc.
Hastelloy C-276, B-2, C-2000, etc.
Nickel-based alloy series Inconel625,718,Incoloy825,800H,Monel400, etc.
High temperat...