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25CrMo4 KB steel grade is a high strength low alloy steel that offers excellent mechanical properties for demanding engineering projects. Its chemical composition includes:
– Carbon (C): 0.22-0.29%
– Silicon (Si): 0.40% max
– Manganese (Mn): 0.60-1.00%
– Phosphorus (P): 0.035% max
– Sulfur (S): 0.035% max
– Chromium (Cr): 0.90-1.20%
– Molybdenum (Mo): 0.15-0.30%
These chemical elements contribute to the overall performance of 25CrMo4 KB steel grade. Carbon provides strength and hardness, while silicon enhances the steel’s ability to withstand high temperatures. Manganese improves the steel’s toughness and formability, while reducing brittleness. Phosphorus and sulfur are impurities that are controlled to ensure the steel’s cleanliness.
The addition of chromium and molybdenum significantly improves the steel’s strength and corrosion resistance. Chromium enhances the steel’s hardenability, wear resistance, and corrosion resistance. Molybdenum improves the steel’s high-temperature strength and creep resistance.
Overall, the chemical composition of 25CrMo4 KB steel grade ensures a balance of strength, toughness, and corrosion resistance, making it suitable for demanding engineering projects.
25CrMo4 KB Steel grade
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