440A Knife Steel

440A is a rust-resistant stainless steel from the 440 steel family. It is characterized by high corrosion resistance and good toughness, and is frequently used for low-maintenance knives.

Three key characteristics of the steel: Edge Retention, Rust Resistance, and Sharpenability

Edge Retention: medium
★★★☆☆
The carbon content enables moderate hardness and sufficient cutting performance for many everyday applications.

Rust Resistance: very high
★★★★★
The high chromium content ensures very good corrosion resistance.

Sharpenability: good
★★★★☆
440A is relatively easy to resharpen.

Areas of Application

Pocket Knives: The combination of rust resistance and easy maintenance makes 440A suitable for many everyday knives.

Humid Environments: The high corrosion resistance is an advantage with frequent contact with water.

Steel Composition