4140 Steel Material Profile
A chromium-molybdenum alloy steel with high strength and toughness, often used in applications requiring high fatigue strength.
Mechanical Properties (Typical)
Density7.85 g/cm³
Tensile Strength655 MPa
Yield Strength415 MPa
Hardness197 Brinell
Machinability & Applications
Good machinability. Typically used for high-strength or critical applications where common aluminum alloys fall short.
Typical Applications
- Crankshafts
- Axles
- Bolts
- High-strength machinery parts