About

CNC machined O1 tool steel is a high-carbon, oil-hardening tool steel designed for applications requiring excellent hardness, wear resistance, and dimensional stability. Known for its reliable heat treatment response and fine grain structure, O1 tool steel is widely used for precision tooling and mechanical components exposed to friction, stress, or repeated use.

O1 tool steel provides a strong balance of hardness, toughness, and edge retention, allowing components to maintain precise geometry and surface integrity during service. While it offers limited corrosion resistance, protective coatings or controlled environments are typically used when environmental exposure is a concern.

Typical applications include cutting tools, dies, molds, punches, gauges, and wear-resistant machine components where durability, precision, and long service life are essential.

Technical Details

Accuracy

±0.2% (lower limit of ±0.13 mm)

Density

7.83 g/cm³

Min. wall thickness

-

Tensile strength

700 - 900 MPa

Tensile elongation

10 - 15%

Flexural modulus

210000 MPa

Embossing

min. 0.3 mm

Engraving

min. 0.3 mm

Warping risk

N/A

Maximum printing dimensions