​Powder steel S390 MICROCLEAN

6 января 2023

Powder steel S390 MICROCLEAN is a powder metallurgical high-speed steel of the third generation, which is made from exceptionally pure fine powder produced at the modern plant for the production of high-quality powder steels BÖHLER in Kapfenberg, Austria.

This alloy is expensive, belongs to the premium class with high hardness and complex mechanical and heat treatment. As a result, its hardness can reach up to 67-70 Rockwell units, which distinguishes itself by aggressive cutting and high performance characteristics.

Powder steel S390 is widely used for the production of high-performance tools (for example, in the automotive industry - clutch, camshaft flywheel; in metal cutting - drilling, threading, gear-cutting tools, broaching and deployment, end mills, saws; in cold metalworking – various types of rigs, tools for rolling threads, other), that is, where high accuracy of components is important, as well as the constancy and duration of its use, therefore, there are many alloying elements in the composition, the action of which is aimed at preserving the properties of steel in any conditions.

Also steel S390 has proven itself in knife production, although not so long ago. Made of S390 steel from us you can buy high-quality and reliable workers and hunting knives of medium and small size, which will perfectly show themselves in cutting durable materials, such as tendons and skin when cutting game. Similar characteristics will be relevant for professional kitchen knives.

The production process of S390 MICROCLEAN powder steel is as follows:

The chemical composition of steel S390 MICROCLEAN is as follows:

Carbon (C) – is responsible for strength after heat treatment, that is, it provides hardness and strength;

Chromium (Cr) - increases the ability of steel to harden, has a positive effect on corrosion resistance. In this alloy, the chromium content is low, so the blade of the knife requires care to protect against rust. Chrome also increases the wear resistance index;

Molybdenum (Mo) - allows you to increase the melting point, hence the preservation of the properties of the blade at elevated temperatures. At the same time, the blade does not get brittle and brittle, with increasing hardness, the steel becomes more elastic, resistance to chemical aggressive substances increases;

Vanadium (V) – its presence indicates an increase in elasticity, wear resistance, and also provides inertia to chemical influences;

Tungsten (W) at a high melting point of tungsten, the resistance of steel at high temperatures increases. It is the main alloying element for quick cuts;

Cobalt (Co) is an expensive alloying additive that has a positive effect on heat resistance, also increases the hardness and wear resistance of the metal, while these parameters are maintained at high temperatures and mechanical loads.

Thus, the advantages have become the following:

  • high redness, steel behaves well when quenching, while it works without problems at low temperatures;
  • very high wear resistance;
  • excellent compressive strength;
  • high viscosity, impact properties;
  • knives made of S390 steel have good machinability, for example, grinding;
  • good fatigue properties.

There are fewer disadvantages, but they still exist:

  • corrosion resistance is not at the highest level, so the knife needs additional care, although minimal - wipe with vaseline oil, which is sold in any pharmacy;
  • high price due to the complexity of steel production.

The S390 Microclean powder steel knife is certainly not cheap, but it's worth it and will be useful both for professional activities and for active hobbies, whether it's hunting, fishing, hiking or cooking.

By purchasing the Ark Forge knife made of S390 steel, you will get a reliable and loyal assistant who will serve you for many years!