A Closer Look at the Composition and Metallurgical Properties of 25CrMo4 Steel Grade

[ad_1] 25CrMo4 is a low-alloy steel grade that contains chromium and molybdenum as its main alloying elements. The chemical composition of 25CrMo4 steel typically includes:

– Carbon (C): 0.22-0.29%
– Silicon (Si): 0.15-0.40%
– Manganese (Mn): 0.60-0.90%
– Phosphorus (P): ≤0.025%
– Sulfur (S): ≤0.035%
– Chromium (Cr): 0.90-1.20%
– Molybdenum (Mo): 0.15-0.30%

The addition of chromium and molybdenum in the steel composition enhances its strength, toughness, and hardenability. This makes 25CrMo4 suitable for applications requiring high strength and excellent impact resistance.

Metallurgical properties of 25CrMo4 steel grade include its ability to be heat treated to achieve desired mechanical properties. The steel can be quenched and tempered to improve its hardness and strength, making it suitable for applications in the automotive, aerospace, and machinery industries.

In terms of mechanical properties, 25CrMo4 steel grade typically exhibits:

– Tensile strength: 800-1000 MPa
– Yield strength: 600-900 MPa
– Elongation: 11-16%
– Impact energy: ≥27 J at -20°C

Overall, the combination of its chemical composition and metallurgical properties makes 25CrMo4 a versatile and reliable steel grade for various engineering applications.