MARTTIINI SHOP Use & Care Choosing your knife The Blade of the Knife Carbon steel
Carbon steel
The carbon steel blade is especially suitable for carving and is also easy to sharpen to its original sharpness. The regular carbon steel (Cr 0.3%; C 0.75%) has a hardness of HRC 55-57. We also use forged carbon steel (Cr 0.6%; C 0.84%) which is tempered to the hardness HRC 59.5.
It is important to dry it thoroughly after use when caring for a carbon steel blade. It is also good to treat it regularly with salt-free oil, e.g., food oil. Carefully handled carbon steel steels remain rust free and has a very long service life.
Sharpening of carbon steel can be done with a whetstone. Read more.