Various Manufacturers (notably Buck Knives uses it extensively) / USA / Global

420HC

High Carbon Stainless Steel55–59 HRCConventional Ingot Steel Process

Composition

Core alloying elements define the baseline trade-off between wear resistance, corrosion behavior, and toughness.

Material Overview

420HC (High Carbon) is an improved version of standard 420 stainless steel with higher carbon content, giving it better hardness and edge retention while maintaining excellent corrosion resistance. When properly heat treated (notably by Buck Knives), it performs significantly better than standard expectations for the 420 family. It is considered a reliable, user-friendly steel for general-purpose knives where ease of maintenance is more important than extreme cutting performance.

Performance Radar

Use four core metrics to understand the usable operating envelope of this steel at a glance.

Edge Retention

Toughness

Corrosion Resistance

Sharpenability

Edge Retention

5.0

Toughness

7.0

Corrosion Resistance

8.0

Sharpenability

9.0

Advantages

Very easy to sharpen
Good corrosion resistance
Improved performance over 420J2
Affordable and widely available
Reliable for general use

Disadvantages

Low edge retention compared to modern steels
Not suitable for heavy-duty cutting
Requires frequent sharpening
Mid-to-low performance tier

At A Glance

420HC is an upgraded version of 420 stainless steel, offering a good balance of corrosion resistance, toughness, and easy sharpening, widely used in budget-to-mid-range knives.