13CrMo4-4 steel grade is a low-alloy steel that primarily consists of the following chemical elements:
– Carbon (C): 0.10-0.17%
– Silicon (Si): 0.10-0.35%
– Manganese (Mn): 0.40-0.70%
– Phosphorus (P): maximum 0.025%
– Sulfur (S): maximum 0.020%
– Chromium (Cr): 0.70-1.15%
– Molybdenum (Mo): 0.40-0.60%
The presence of these elements in specific proportions lends 13CrMo4-4 steel grade its unique mechanical and technical properties, which make it suitable for various applications in the automotive and aerospace manufacturing sectors.
The mechanical properties of 13CrMo4-4 steel grade include:
– Tensile strength: The steel exhibits a minimum tensile strength of 450-600 MPa, providing excellent strength and resistance to deformation or breakage.
– Yield strength: The steel has a minimum yield strength of 275-355 MPa, indicating its ability to withstand a certain amount of stress or load without permanent deformation.
– Elongation: The steel possesses a minimum elongation of 22-25%, which allows it to undergo significant deformation or stretch before breaking. This property is crucial for applications where the material needs to be formed or shaped without fracturing.
– Impact toughness: 13CrMo4-4 steel grade has a good impact toughness, ensuring its ability to absorb sudden shocks or impacts without fracturing.
– Hardness: The steel exhibits a hardness range of 180-220 HB, providing adequate resistance to wear and abrasion.
In terms of technical properties, 13CrMo4-4 steel grade offers excellent resistance to high temperatures and pressure. It has high heat conductivity and can withstand elevated temperatures without losing its mechanical strength. This property makes it ideal for applications in exhaust systems, pressure vessels, and other high-temperature environments.
Moreover, the steel grade also provides good corrosion resistance due to the presence of chromium, which forms a protective oxide layer on the surface, preventing oxidation and rusting.
With its unique chemical composition and associated mechanical and technical properties, 13CrMo4-4 steel grade is revolutionizing the automotive and aerospace manufacturing industry by enabling the production of lightweight, durable, and high-performance components that can withstand extreme conditions. Its strength, toughness, and resistance to high temperatures and corrosion make it an ideal material for critical applications in these sectors.
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