Understanding the Properties and Applications of 38NiCrMo4 KB Steel Grade

[ad_1] 38NiCrMo4 KB is a low-alloy steel grade with a high hardenability. This material is commonly used in applications requiring high strength and toughness, such as gears, crankshafts, and other components in the automotive and aerospace industries.

The chemical composition of 38NiCrMo4 KB steel grade typically includes:
– Carbon (C): 0.35-0.43%
– Silicon (Si): 0.40% max
– Manganese (Mn): 0.50-0.80%
– Phosphorus (P): 0.025% max
– Sulfur (S): 0.035% max
– Nickel (Ni): 1.30-1.70%
– Chromium (Cr): 0.40-0.70%
– Molybdenum (Mo): 0.15-0.25%

The technical properties of 38NiCrMo4 KB steel grade include:
– Tensile strength: 1100-1300 MPa
– Yield strength: 900-1100 MPa
– Elongation: 9-12%
– Impact energy: 20-40 J
– Hardness: 30-40 HRC

These properties make 38NiCrMo4 KB suitable for applications where high strength, good toughness, and excellent wear resistance are required. It can be heat treated to achieve specific mechanical properties, making it a versatile material for various engineering applications.