
12C27 steel is a modern, stainless knife steel from the renowned Sandvik (Alleima) family, valued for its well-balanced properties: solid corrosion resistance, reliable hardness after heat treatment, and ease of sharpening. In this article, we break down its chemical composition and explain how each element influences blade performance. We also compare 12C27 with similar grades (including 14C28N and 440C), and share practical tips on how to effectively sharpen knives made from this steel and choose the right accessories to ensure long-lasting, hassle-free use.