Sandvik (Alleima) / Sweden

12C27

Stainless Steel54–59 HRCConventional Ingot Steel Process

Composition

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

Material Overview

12C27 is a classic Scandinavian stainless steel developed by Sandvik, widely used in traditional Nordic knives such as Morakniv. It is engineered for simplicity, durability, and ease of maintenance. While it does not offer high wear resistance, it excels in real-world usability due to its fine grain structure, good toughness, and very easy sharpening. It is especially popular in outdoor and survival applications where reliability and ease of field maintenance are more important than premium edge retention.

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

8.0

Corrosion Resistance

9.0

Sharpenability

10.0

Advantages

Extremely easy to sharpen
Excellent corrosion resistance
Very tough and reliable
Low cost and widely available
Great for outdoor use

Disadvantages

Low edge retention
Not suitable for heavy abrasive cutting
Basic performance compared to modern steels
Requires frequent sharpening

At A Glance

12C27 is a Swedish stainless steel known for excellent corrosion resistance, very easy sharpening, and good toughness, widely used in Scandinavian knives.