Understanding the Properties and Applications of 40NiCrMo2 KB Steel Grade

[ad_1] The 40NiCrMo2 KB steel grade is a high-strength, low-alloy steel known for its excellent mechanical properties and good hardenability. It is commonly used in the automotive, aerospace, and machinery industries for applications such as gears, shafts, and crankshafts.

Technical Properties:
– Tensile Strength: 1100-1300 MPa
– Yield Strength: 950-1100 MPa
– Elongation: 12-15%
– Hardness: 280-330 HB

Chemical Composition:
– Carbon (C): 0.37-0.45%
– Silicon (Si): 0.15-0.35%
– Manganese (Mn): 0.50-0.80%
– Phosphorus (P): max 0.025%
– Sulfur (S): max 0.035%
– Chromium (Cr): 0.90-1.20%
– Nickel (Ni): 1.40-1.70%
– Molybdenum (Mo): 0.15-0.25%

The 40NiCrMo2 KB steel grade has excellent hardenability, allowing for effective heat treatment processes to achieve the desired mechanical properties. It also offers good fatigue resistance and impact strength, making it suitable for high-stress applications.

In conclusion, the 40NiCrMo2 KB steel grade is a versatile and reliable material with excellent mechanical properties, making it suitable for a wide range of applications in demanding industries.
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