D2
D2 (X155CrMoV121; CSN 19573; SKD11; 1.2379; AIRDI 15; K110)
( 1.6% Carbon (C), 11.5% Chromium (Cr), 0.9% Molybdenum (Mo), 1.1% Vanadium (V), 0.45% Manganese (Mn), 0.4% Silicon (Si)) Perfect toughness and wear resistance, however, it is relatively difficult to machine. Which is not a problem for the customer, but for the cutter. A very popular steel with knife makers around the world, it offers more advanced properties at an affordable price compared to ordinary stainless steels. Although the steel is not corrosion resistant, it is not that prone to it, where even with very easy maintenance the steel can be considered quite resistant to rust. It also depends on the surface treatment of the blade where it increases resistance to rusting. Relatively dulling resistant blade, but with some small resistance to soldering and similar non-sleeping uses. Typical Rockwell hardness up to 65 HRc.