About

CNC machined Steel 4140 is a chromium-molybdenum alloy steel designed for applications requiring high strength, toughness, and excellent wear resistance. It is widely used in precision engineering and heavy-duty mechanical components due to its reliable performance under load and ability to withstand repeated stress.

The material offers a strong balance of strength, ductility, and impact resistance, making it suitable for structural and mechanical components subjected to demanding operating conditions.

Steel 4140 responds well to heat treatment, allowing it to achieve significantly increased hardness, strength, and wear resistance when required. It provides better hardenability and mechanical performance than lower-alloy steels such as 4130, making it well suited for highly loaded components. While its corrosion resistance is limited, protective coatings or surface treatments can be applied to improve environmental durability.

Technical Details

Accuracy

±0.2% (lower limit of ±0.13 mm)

Density

7.85 g/cm³

Min. wall thickness

-

Tensile strength

655 - 850 MPa

Tensile elongation

20 - 25%

Flexural modulus

205000 MPa

Embossing

min. 0.3 mm

Engraving

min. 0.3 mm

Warping risk

N/A

Maximum printing dimensions