SPECIFICATIONS:

The name of the knife - INVISIBLE III collector's exclusive knife handmade by the master of Fomenko Knifes studio, buy order in Ukraine
Knife type: Fixed blade
Brand: Studio of exclusive handmade knives ANDROSHCHUK KNIVES 

Steel brand: Blade - CPM® S125V™ - high-alloy martensitic stainless tool steel, produced by the concern "Crucible Industries" (USA) TO Rostyslav Dozlo
Steel sheet: One-piece, through-mounting on screed and resin
Blade sharpening angle: Sharpened at 34-35 degrees
Descents: Direct
Reduction: 0.1- 0.2 mm
Blade hardness: 61-62 HRC
Overall length: 255mm
Blade length: 125mm
Blade width: 30mm
Blade thickness: 4.4 mm
Length of the handle: 130 mm
Handle thickness: 24mm
Blade Grinding: Blade finish - hand satin
Material of bolster (guard) and back: made of stainless steel
Handle material: Bolster - stainless steel, treated ironwood (Ironwood)
Handle color: Brown
Handle Impregnation: Yes
Handle cover: Yes
Hole for a shoelace (for a lanyard): Absent
Temlyak -  Absent
Scabbards: Treated ironwood (Ironwood)

Model: INVISIBLE III collector's exclusive knife handmade by the master of FOMENKO KNIFES studio, buy order in Ukraine
Model number: 028
Country of birth: Ukraine
Craftsman: Master Oleksandr Fomenko (Fomenko Knifes), Chuhuyiv, Ukraine Studio of exclusive handmade knives FOMENKO KNIFES
Best use: Multi-purpose: hunting, fishing, cutting, slicing, etc
Knife condition: new
The price is indicated with the sheath.

A sharpened knife is not a cold weapon.

Cutting tools, saws, removable blades are made from this steel. Used in the production of medical instruments.
High anti-corrosion properties! The knives performed well in wet conditions.

Original design.

The handle is subjected to a special water-repellent treatment.

Availability changes regularly, upon confirmation of your order, we will inform you about the availability or when the product will be ready. The product may differ slightly from the one shown in the photo.

Powdered steel Crucible CPM® S125V™
CPM® S125V™ is a high-alloy martensitic stainless tool steel manufactured by Crucible Industries (USA). The corrosion resistance of the alloy is comparable to ZDP-189, that is, it is quite high. Steel ZDP-189 contains 20% chromium versus 14% for CPM S125V. The amount of carbon is about the same. It would seem that 125ya should rust more, but in ZDP-189 much more chromium goes into carbides than in S125V, where vanadium also goes into carbides. As a result, the chromium content in the solid solution for both steels is not so different.

Recently, many knife manufacturers have abandoned the CPM S125V, primarily due to the complexity of the finish. Custom craftsman Phil Wilson (Phil Wilson) said that handmade satin S125V takes three times longer than for CPM 10V - one of the most difficult steels (more or less mass-produced).

The steel is made using the technology of amorphous metal alloys, better known among knife makers and hobbyists under the acronym CPM (Crucible Particle Metallurgy). The CPM process makes it possible to produce a very uniform, high quality steel that is characterized by superior stability, uniformity and toughness compared to steels from traditional heat production.

Powdered high speed steel was developed in Sweden in the late 60s of the last century. The powder metallurgy method makes it possible to introduce more alloying elements into the steel without reducing the strength and machinability.

Powder steel, unlike ordinary steel, is fed in molten form through a special nozzle through a stream of liquid nitrogen. Steel quickly hardens into small particles. The result is a powder with a uniform arrangement of carbides (the place of accumulation of carbides is the place where cracks originate). Carbides perform the same function in the composition of steel as cobblestones on the street: they (carbides) are harder than the steel surrounding them, and contribute to its increase in wear resistance.

The resulting powder is sieved and placed in a steel container in which a vacuum is created. Next, the contents of the container are sintered at high temperature and pressure - thus achieving material homogeneity. This process is called hot isostatic pressing. The steel is then pressure treated. The result is a high speed steel with very small carbide particles evenly distributed in the steel substrate. The resulting steel can be rolled in the traditional way, as well as serial grades of steel, resulting in its increased strength.

Differences in the wear resistance of different grades of powder steel are explained by the presence of different carbides in their composition in different proportions and with different distribution uniformity throughout the steel volume. Of two steels having approximately the same hardness, the more wear-resistant will be the one in which there are more carbides or they are harder.

Steel composition:

• C 3.3% - the carbon content in the alloy is 3.3%. Carbon is the most important element in steel, it increases its strength and gives the metal good hardness.
• Cr 14.0% - the chromium content in the alloy is 14.0%. Chromium is a greyish-white lustrous hard metal. Chromium affects the ability of steel to harden, gives the alloy anti-corrosion properties and increases its wear resistance. Contained in stainless steel of any brand.
• Mo 2.5% - the molybdenum content in the alloy is 2.5%. Molybdenum is a silvery white metal. Molybdenum is a hard-melting element, it prevents brittleness and brittleness of the blade, giving it the necessary rigidity, making it sufficiently resistant to high temperatures.
• V 12.0% - the content of vanadium in the alloy is 12.0%. Vanadium is a grayish-white lustrous metal with great hardness. It is responsible for elasticity and enhances the properties of chromium, makes the metal inert to aggressive chemical environments.
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Knife steel Crucible CPM® S125V™

Well, you can buy a knife made of Knife Crucible CPM® S125V™. Composition and properties. on our website knife.net.ua or by contacting us by phone +380961711010

It is worth remembering that when using a knife for its intended purpose and with careful handling, the knife will serve you for a very, very long time.

Well, you can buy a knife made of Steel M390. Composition and properties. on our website knife.net.ua or by contacting us by phone +380961711010

It is worth remembering that when using a knife for its intended purpose and with careful handling, the knife will serve you for a very, very long time.

Ironwood - iron wood - handmade knives

Ironwood - iron wood - handmade knives

In nature, ironwood is extremely rare, therefore it occupies an honorable place in the Red Book. However, in terms of its properties, each iron tree is not inferior to the density of cast iron. Its bark can withstand gunfire, but it sinks hopelessly in water. It is worth noting that this is not a separate class of trees, but a whole group assembled from different species. It includes several dozen species of plants with unusually dense wood. They can be found on every continent. Moreover, raw materials are used both in the industrial industry and in medical practice.

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What is special about these trees?

It is quite difficult to recognize the "stone" breed of a perennial plant with the naked eye. Especially if they are on the verge of extinction. However, they are characterized by the following features:

• the age of such long-lived people is not less than 2 hundred years;
• wood fiber is resistant to corrosion processes and does not deteriorate under the influence of strong acids;
• the bark contains many tannins that protect their "hosts" from all kinds of parasites, as well as from the rot fungus;
• the log will definitely go under water, since the density of wood is 1 t / m³, taking into account the humidity of 12%, for this reason, such breeds grow quite slowly;
• the height of each exceeds 25 meters, and the girth of the trunk reaches more than 200 cm.

All these properties are necessary for an iron tree to survive in the harshest climatic conditions. Sharp temperature changes in Russia, African drought or humid European climate will not be able to harm this natural phenomenon. Such varieties of trees perfectly adapt to any adverse environment. For this, they are equipped with a considerable number of devices, starting from the unique structure of the trunk / roots and ending with the chemical composition of the bark. In this regard, they are widely used in production:

• furniture;
• building structures;
• cars;
• cosmetics;
• decorative elements;
• underwater equipment.

High-quality and original steel inserts are a wonderful decoration of exclusive and unique knives of the Studio of exclusive handmade knives ANDROSHCHUK KNIVES (Ukraine), which offers to order and buy online store https://knife.net.ua