12C27 is swedish stainless steel produced by Sandvik Materials Technology. It is widely used in knife industry for example by Morakniv or Opinel knives. Excellent steel for regular use - it is easy to sharpen and holds the edge quite well. This steel can reach a hardness of 57 - 59 HRC. Excellent price/quality ratio.
Steel composition: 0,6% carbon, 13,5% chromium, 0,4% manganese, 0,4% silicon, 0,03% phosphorus, 0,01% sulfur.