The Versatile Applications of 21NiCrMo2 Steel Grade: From Automotive to Aerospace

The chemical composition of 21NiCrMo2 steel grade typically includes:

– Carbon (C): 0.18-0.23%
– Silicon (Si): 0.17-0.37%
– Manganese (Mn): 0.50-0.80%
– Phosphorus (P): max 0.035%
– Sulfur (S): max 0.035%
– Nickel (Ni): 1.50-1.80%
– Chromium (Cr): 0.60-0.90%
– Molybdenum (Mo): 0.25-0.35%

These composition elements contribute to the desired mechanical properties and performance of the steel grade.

The mechanical properties of 21NiCrMo2 steel grade are as follows:

– Tensile Strength: 900-1100 MPa
– Yield Strength: 650-850 MPa
– Elongation: 15-22%
– Hardness: 217-277 HB

These mechanical properties make 21NiCrMo2 steel suitable for a wide range of applications in various industries, including automotive and aerospace.

In the automotive industry, this steel grade can be used for manufacturing various components such as gears, shafts, camshafts, and crankshafts. It provides high strength, wear resistance, and good fatigue properties, making it suitable for high-performance applications.

In the aerospace industry, 21NiCrMo2 steel grade can be used in the manufacturing of aircraft landing gear components, engine parts, and transmission systems. Its excellent mechanical properties make it suitable for handling high loads and extreme operating conditions.

Overall, the versatile applications of 21NiCrMo2 steel grade in automotive and aerospace industries are attributed to its optimal combination of chemical composition and mechanical properties.
21NiCrMo2 Steel grade
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