Knife Steel - Sandvik 12C27

Alleima 12C27 – Versatile and Well-Balanced Knife Steel

Alleima (formerly known as Sandvik) 12C27 is one of the most widely used stainless steel grades for knife production. It is known for its excellent balance between hardness, toughness, and corrosion resistance, making it a versatile choice for various types of knives. 12C27 is particularly valued for its fine microstructure, which provides a sharp and durable edge.

Properties of Alleima 12C27:

• Hardness: Can be hardened to 54-61 HRC, depending on heat treatment.

• Corrosion Resistance: Good rust resistance, suitable for both outdoor and kitchen knives.

• Toughness: High toughness, making it resistant to impacts and stress.

• Edge Performance: Maintains a sharp edge for a long time while being easy to sharpen.

Typical Applications:

• Folding knives and hunting knives

• Kitchen knives and chef’s knives

• Outdoor knives and fishing knives

• Industrial knives and razor blades

Heat Treatment of Alleima 12C27:

• Hardening Temperature: 1050-1080°C, depending on the desired hardness.

• Cooling: Rapid cooling (air or oil) to room temperature (<2 min) for optimal hardness and corrosion resistance.

• Tempering: Typically at 175-200°C for 2x2 hours to adjust hardness and improve toughness.

Conclusion:

Alleima (formerly known as Sandvik) 12C27 is a reliable and well-balanced steel suitable for a wide range of knives. It combines excellent cutting performance with high toughness and corrosion resistance, making it a preferred choice for both professionals and outdoor enthusiasts.