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The 35NiCrMo6 KB steel grade is known for its superior strength and toughness, making it highly suitable for applications that require high levels of mechanical performance. The mechanical properties of this steel grade are as follows:
– Tensile Strength: The 35NiCrMo6 KB steel grade has a tensile strength of approximately 900-1200 MPa. This high tensile strength ensures that the steel can withstand heavy loads and high stress conditions without deformation or failure.
– Yield Strength: The yield strength of this steel grade is around 750 MPa. The high yield strength implies that the steel can resist permanent deformation and provide reliable performance in demanding environments.
– Elongation: The 35NiCrMo6 KB steel grade offers a good elongation of approximately 12-15%. This means that the steel can withstand tensile forces without breaking or fracturing easily, making it suitable for applications that require flexibility and resistance to cracking.
– Impact Toughness: The impact toughness of this steel grade is excellent, with a value of around 35 J/cm2. It means that the steel can absorb high-energy impacts without breaking, ensuring the safety and durability of the components made from it.
The chemical composition of 35NiCrMo6 KB steel grade plays a vital role in its superior strength and toughness. The composition typically includes:
– Nickel (Ni): The nickel content in this steel grade is approximately 1.5-1.8%. Nickel enhances the steel’s strength and toughness by improving its hardenability and resistance to deformation.
– Chromium (Cr): The chromium content is around 0.9-1.2%. Chromium contributes to the steel’s strength and corrosion resistance, making it suitable for applications exposed to harsh environments.
– Molybdenum (Mo): The molybdenum content in this steel grade is approximately 0.2-0.3%. Molybdenum enhances the steel’s hardenability and high-temperature strength, improving its overall mechanical performance.
– Carbon (C): The carbon content is typically around 0.32-0.39%. Carbon provides the steel with its hardness and improved strength by forming carbides during the heat treatment process.
– Other Elements: Other elements present in minor amounts include manganese (Mn), silicon (Si), and sulfur (S), among others. These elements help in achieving specific desired properties in the steel, such as improved machinability or increased resistance to brittle fracture.
Overall, the superior strength and toughness of the 35NiCrMo6 KB steel grade can be attributed to its specific chemical composition and optimized heat treatment processes. These properties make it a preferred choice for various demanding applications in industries such as automotive, aerospace, and machinery.
35NiCrMo6 KB Steel grade
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