CNC Machining
40Cr
Tensile strength ≥980MPa after quenching and tempering, chromium improves heat treatment effects.
Key Advantages
- High Strength and Toughness
- Good Hardenability
Specifications
Lead Time
Standard (2-5 Days)
Thermal Conductivity
42 W/m·K
Thermal Expansion
11.2 µm/m·°C
Corrosion Resistance
Poor
Specific Heat
~480 J/kg·K
Yield Strength
~800 MPa
Tensile Strength
~1000 MPa
Density
7.8 g/cm³
Machinability
Fair
Application Notes
This material is widely used in high-precision metal 3D printing and CNC machining projects. Its unique combination of properties makes it ideal for complex geometries and functional prototyping.
For specific tolerance requirements or surface finishing options, please refer to our Metal 3D Printing (SLM) Design for Manufacturing (DFM) guide.
Typical Material Application