Cryo turning knife

High-quality woodturning tool made from cryogenic high-performance high-speed steel

It has long been known that the properties of metal tools can be changed by exposing them to high temperatures and then cooling them down very quickly. The crystalline structure of the metal is changed in such a way that the metal reacts differently during use.
Tool steel consists mainly of two mixed crystals: the larger and softer austenites and the smaller and much more stable martensites. Heat treatment transforms austenites into martensites to produce steel with good wear properties and plastic deformability.
In combination with a special heat treatment, the cryogenic process significantly increases the transformation of austenites. At the same time, fine ETA carbides are formed within the carbon structure at the extremely low temperature of - 185°C. As these grow very slowly and only at such low temperatures, ETA carbides are extremely small and act as a filler between the other crystals in the metal.
Combined with the special heat treatment, the low temperature treatment leads to the formation of a refined crystal structure in your hand tool. This ensures that it will give you years of reliable service, with a cutting edge that retains its sharpness for longer and gives you a better feel when working compared to conventional HSS tools.

Temperature treated and hardened steel

In general, cryogenic steel, also known as cryogenic steel, is a high-strength steel alloy type that is produced through a special manufacturing process that involves extremely low temperature treatment. The steel is cooled to a very low temperature of around minus 185 degrees Celsius to improve its properties.
This extreme cooling makes the steel more resistant to wear and breakage as well as more resistant to corrosion. Therefore, cryogenic steel is often used in applications that have high requirements for strength, durability and reliability, such as in the aerospace industry, medical technology, the automotive industry and in the manufacture of cutting tools and knives.
It is important to note that cryogenic steel does not refer to just one type of steel, but a range of steel alloys that have been specially developed for cryogenic treatment. The exact properties of cryogenic steel can vary depending on the alloy type and manufacturing process.