Knife Knowledge

Knife Steel Basics: D2, 14C28N, 154CM and Stainless Steel

Understand common knife steels and what they mean for edge retention, corrosion resistance, sharpening, and outdoor use.

KnifeTW

Steel is a balance

Knife steel is not only about hardness. Outdoor buyers should balance edge retention, corrosion resistance, toughness, and ease of sharpening.

Common choices

  • D2: strong edge retention, needs basic rust care.
  • 14C28N: stainless, tough, and easy to maintain.
  • 154CM: balanced stainless steel for premium folding knives.
  • 8Cr and 440 series: practical budget steels when heat treatment is good.

Buying tip

Look at heat treatment, blade geometry, and intended use instead of choosing by steel name alone.