Mora of SWeden uses almost solely steel from Sandvik with the Steel Grade Code 12 C 27. This steel contains 0.6% Carbon and 13.5% Chromium. This, together with a special hardening treament using liquid Nitrogen at -80°C, ensures that the knives achieve a hardness of between 57 - 58 Rockwell C. In comparison to other knives this is amongst the highest attainable hardness levels without affecting the sharpening ability to any marked degree.
Four steel grades are used for knives from Mora of Sweden
- Stainless steel (S)
Knife blades are made of hardenable stainless steel- Sandvik 12C27 (hardened to HRC 57-58), producing knives with extreme strength, long life as well as having high resistance to moisture without rusting.
- Carbon steel (C)
Knife blades of high carbon steel can be hardened to HRC 59-60 giving best possible sharpness to lowest price. Knives made from above mentioned steel grades will after some use achieve a dullish grey finish. However, this will not negatively affect the quality of the blade. On the contrary it will somewhat improve the resistance to corrosion.
- Triflex (T)
This modified carbon steel is best described as a material between laminated steel and plain carbon steel hardened to HRC 59-60 with a softer surface that improves the tensile strength considerably.
Though it will not allow bending as laminated steel.
- Laminated steel (L)
This steel grade is unique to knives from Mora of Sweden. The core of the blade is of high carbon steel surrounded by a softer alloyed steel layer. A high hardness (HRC 61) can be achieved through hardening, resulting in a knife blade with superior toughness, cutting edge retention and thereby maximum sharpness and long life.
The blade can also be bent into a predetermined shape.