Enhancing Performance and Durability with 25CrMo4 Steel Grade in Structural Engineering

25CrMo4 is a low-alloy steel grade commonly used in structural engineering to enhance performance and durability. Its mechanical properties and chemical composition contribute to its ability to withstand heavy loads and resist fatigue.

The mechanical properties of 25CrMo4 include:

– Yield strength: 550 MPa
– Tensile strength: 700-900 MPa
– Elongation: 14-17%
– Impact toughness: ≥ 100 J/cm2 at -20°C

These properties make 25CrMo4 a strong and tough material, ideal for structural applications that require high strength and resistance to deformation.

The chemical composition of 25CrMo4 is as follows:

– Carbon (C): 0.22-0.29%
– Silicon (Si): 0.15-0.35%
– Manganese (Mn): 0.60-0.90%
– Phosphorus (P): ≤ 0.035%
– Sulfur (S): ≤ 0.040%
– Chromium (Cr): 0.90-1.20%
– Molybdenum (Mo): 0.15-0.30%

The alloying elements such as chromium and molybdenum enhance the hardenability and strength of the steel, while carbon improves its overall mechanical properties. The controlled percentages of these elements contribute to the steel’s ability to withstand high stress and fatigue, making it suitable for structural engineering applications.

When using 25CrMo4 steel grade in structural engineering, it is important to consider its mechanical properties and chemical composition to ensure the desired performance and durability. It is commonly utilized in the construction of heavy equipment, pipelines, and pressure vessels, where its strength and toughness are essential.
25CrMo4 Steel grade
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