Unveiling the Properties and Applications of C45 Steel Grade

C45 steel grade, also known as AISI 1045, is a medium carbon steel with good mechanical properties and excellent tensile strength. It is commonly used in machinery parts, forging, and general engineering applications.

The chemical composition of C45 steel grade consists of carbon (C), manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), chromium (Cr), and nickel (Ni). The percentage composition is as follows:

– Carbon (C): 0.42 – 0.50%
– Manganese (Mn): 0.50 – 0.80%
– Silicon (Si): 0.15 – 0.35%
– Phosphorus (P): 0.035% (maximum)
– Sulfur (S): 0.035% (maximum)
– Chromium (Cr): 0.25% (maximum)
– Nickel (Ni): 0.25% (maximum)

The mechanical properties of C45 steel grade are robust and make it suitable for various applications. The typical mechanical properties include:

– Tensile Strength: 570 – 700 MPa
– Yield Strength: 330 – 450 MPa
– Elongation: 17 – 25%
– Hardness: Approximately 170 – 210 HB (Brinell hardness)

The combination of high tensile strength, good machinability, and medium carbon content make C45 steel grade ideal for manufacturing components such as gears, shafts, bolts, studs, and spindles. It can undergo different heat treatments like quenching and tempering to achieve desired mechanical properties.

Additionally, C45 steel grade is widely used in construction machinery, steel production, manufacturing of round bars, agricultural machinery, and automotive components. Its versatility and cost-effectiveness make it a popular choice in various industries.
C45 Steel grade
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