SPECIFICATIONS:

The name of the knife: NOMAD exclusive handmade knife by the master of the RUSLAN KNIVES studio, buy to order in Ukraine (Steel N690™ 61 HRC)
Knife type: Fixed blade
Brand: Studio Studio of exclusive handmade knives RUSLAN KNIVES

A sharpened knife is not a cold weapon.

Our knives are very sharp, so be very careful when opening and handling them. We are not responsible for any injuries related to the use of our knives.
Our products are intended for legal use only by responsible buyers. We will not sell our products to anyone under the age of 18.

Availability changes regularly, after confirming your order we will notify you of availability or when the item is ready. The product may differ slightly from the one shown in the photo.

Steel N690: composition, interpretation and application

Features of steel N690

Martensitic alloy steel N690 is produced by the Vohleg-Uddeholm Gmbh&C corporation, which has its enterprises in Austria, Germany, South and North America. Another name for the alloy is Austrian cobalt stainless steel. Due to its high quality and operational characteristics and advantages, it is successfully implemented in many countries of the world for the manufacture of knives and other purposes.
Steel is produced by electroslag smelting technology. It has a uniformly distributed carbide structure of the crystal lattice in the absence of harmful impurities. As a result of heat treatment and forging, the impact toughness of the material increases without loss of hardness. The presence of alloying additives in the chemical composition of steel ensures resistance to corrosion.

Field of application
Steel is recognized as a good material for serial production of long-range and tactical knives, the technical characteristics of which allow operation in difficult and extreme conditions. Blades made of N690 steel are able to withstand not only longitudinal, but also strong lateral loads when acting on bends and twists.
Due to its resistance to corrosion and aggressive environments, steel is used in the manufacture of diving knives, harpoons for spearfishing and other sports equipment.
This steel is used in the manufacture of knives by such well-known European brands as Vokeg, Spyderco, Vepshmade and Echthema Ratio. Manufactured blades have excellent cutting properties, are strong, durable, sharpen well and hold an edge. The presence of alloying elements in the composition ensured high corrosion resistance while maintaining plasticity. If necessary, there is a possibility of thermal hardening up to 60 NKR.

The technical and physical characteristics of the alloy allow it to be used in mechanical engineering for the manufacture of tools, milling cutters, drills, parts of bearings and relevant components operating under high mechanical loads. The steel is highly wear resistant and can be heat treated.
Resistance to the effects of moisture and chemicals allows the use of steel in the food and pharmaceutical industry for the manufacture of cutting tools and grinders. At the same time, the ecological purity of the material and the complete absence of impurities are taken into account.
ANALOGUES
According to its composition, steel N690 is a close analogue of Russian steel 95X18, German X102SgMo17, Japanese / (3-10 and A115-10, French 2100СО17, American 440 С. In Sweden, an analogue of Sandvic 12С27 is produced.
Storage
Steel N690 contains:
■ 1.08% carbon (C), which gives the material hardness and increases strength;
■ 17.3% chromium (Cg) to obtain anti-corrosion properties, increase wear resistance and change hardening conditions;
■ 1.1% molybdenum (Mo) to reduce brittleness, increase plasticity and resistance to high temperatures;
■ 0.1% vanadium (V) to increase metal elasticity and inertness to aggressive media;
■ 1.5% cobalt (C) increases heat resistance and improves mechanical properties;
■ 0.4% manganese (Mp) increases hardness;
■ 0.4% silicon (5|) to improve alloy stability and increase wear resistance.
The presence of cobalt in the chemical composition of the metal makes the crystal structure of N690 more uniform and resistant to mechanical loads.

PROS AND CONS OF N690 STEELS FOR KNIVES
The use of Austrian N690 steel allows for the production of high-quality stainless knives for various purposes. Due to its physical and technical properties, the material is well processed, capable of heat treatment, is not prone to corrosion and is sold at an affordable price.
5*ee1 N690 is one of the best alloys for making beautiful wear-resistant blades. Simple sharpening and long-term preservation of the sharpness of the edge make use simple and convenient. You will never regret buying or making a knife from this steel.

Types of deliveries
The high quality of Wohler N690 steel is ensured by the use of a unique rolling technology developed by the manufacturer. Metal sheets are subjected to repeated hot processing with rolling in the longitudinal and transverse directions. After that, the material is cold cut into strips.
N690 steel is supplied to the rolled metal market in the form of steel strips 3-5 mm thick, 20-50 mm wide and 250 to 1000 mm long, especially for the manufacture of knives. The cross-section of the strips is rectangular or with a prepared longitudinal bevel, which eliminates the need for blacksmithing when making the blade. The steel may or may not have previous heat treatment.
All of this is very convenient, as it does not require operations to cut large sheets, which allows you to accurately determine the amount of necessary material and reduces the amount of waste.
Strips are sold individually. The price depends on the geometric dimensions of the product, thicknesses and types of preliminary factory processing. For the products of the metalworking industry, we supply a sheet 2-8 mm thick, the size stated in the contract. If necessary, you can order any analogue of steels of type N690. Sheet metal is sold by weight.

The online store  Knife.net.ua  offers handmade knives, exclusive custom-made knives for discerning men and hunters, made by the hands of the best masters of Ukraine for use in hunting, in non-standard situations at a favorable price to order or to choose from in our store. A quality tool for individual use in the field or hunting. Delivery is carried out throughout Ukraine and the world within a few days. Knife.net.ua is the best selection of knives in Ukraine from handmade craftsmen.

Well,  you can buy a powder steel knife  on our website  knife.net.ua  or by contacting us by phone +380961711010

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

WHAT IS MICARTA AND G10. HOW DO THESE COMPOSITE MATERIALS DIFFER FROM EACH OTHER

For decades, Micarta and G10 composite materials have been undisputed leaders in the knife industry, in particular for the production of handles of various complexity. The materials are distinguished by their availability, ease of production and processing, as well as high strength, wear resistance and unpretentiousness in maintenance. Both materials are composite, based on polymer resin, which is supplemented with layers of different types of captive fabric.

Micarta-G10-Composite-materials-photo-2

Micarta material is an electrical insulating material consisting of a polymer film (based on cresolaldehyde, phenolaldehyde, xylenolaldehyde resin, or resin from a mixture of phenolic raw materials). It is glued with the help of various electrically insulating papers, fabric (mainly linen of natural or artificial origin), or other materials of a similar structure, there are also options made of fiberglass and carbon fiber. The color of the material depends on the resin and fabric base used for gluing. Micarta is a relatively soft material and requires careful manual processing. Therefore, it is used in the production of handles for more expensive knives.

Micart is registered as a trademark of the American company Industrial Laminates / Norplex, Inc. (Norplex-Micarta). Its domestic analogue can be considered a material called "Getinax", which is mainly used as a basis for printed circuit boards. The material also has a sheet pressed structure, which consists of a paper base with the addition of phenolaldehyde or epoxy resin impregnation.

Linen-based micarta has a more attractive optical effect when sanding the fibers. After grinding, the surface can be polished or sandblasted. In the first option, the surface of the material will be smooth, silky, warm and pleasant to the touch. And in the second, the material becomes rough and has a matte shade, besides, it is securely held in the hand and does not slip.

Main characteristics of Micarta:

increased water resistance;
excellent resistance to temperature changes;
strength to mechanical processing;
dense structure that does not absorb odors;
the micro-relief of the material does not slip in the hand even when the surface is wet;
tight fit to the blade, which leaves no gaps at all and prevents food residues and harmful microorganisms from accumulating.
G10 material is a light, hard and fairly stiff composite material with a textured surface, which is mainly used in the manufacture of handles of both folding pocket knives and knives with a fixed blade. This material is created by placing several layers of fiberglass, thoroughly impregnated with epoxy resin, in a special vacuum press, where, under the influence of compression and heat, the resin finally hardens, preserving the structure of the fiberglass.

The G10 material is characterized by good impact resistance, wear resistance, moisture resistance, as well as ease of processing and maintenance. The material can be painted in different colors, including in layers. The surface of G10 can also be polished to a glossy state, or have a rough anti-slip structure, under the influence of a grinding machine or sandblasting.

Key features of the G10:

high stability of basic properties during temperature fluctuations;
withstands high shock loads, compressive and tensile loads;
high overall hydrophobicity and resistance to chemicals;
weighs relatively little, in relation to the overall strength and density;
low electrical conductivity;
can take different forms.
Composite materials G10 and Micarta have almost the same composition and external similarity. At the same time, the G10 material has higher fire resistance, although it is not a non-flammable material, it has higher compressive, bending, impact and tear strength, and it is also simpler and more economical to manufacture. At the same time, G10 is inferior in terms of "stickiness" in wet conditions, and also, tactilely, it feels less "natural".

The walnut root system: the width and depth of the roots, the tree and the foundation of the house, a diagram with a photo

The root system of both walnut and other plants is an integral part of their life. The strong root system of walnut allows the culture to be well established in the soil, participating in the absorption of moisture saturated with mineral elements. Knowledge of the characteristics of walnut (walnut) roots allows the gardener to choose the right place for planting, as well as to carry out the correct agrotechnical actions for the full development of the plant.

Description of the walnut root system

The root system of this culture is quite powerful and large, which allows it to take root perfectly. The structure of the underground organ of walnut consists of central and lateral roots . The second acts as an anchor, forming strengthening processes that go deep and wide, as well as shoots that, on the contrary, stretch upwards.

The central (stem) root  “pulls” moisture, saturated with useful substances, from the lower layers of the soil. By the age of twenty, it deepens up to 6 m.  The lateral ones  usually deepen by a maximum of 0.5 m. They act as nutrient conductors from the upper soil layers.

The main parts of a tree: 1 — vertical root, 2 — horizontal root, 3 — root neck, 4 — stem, 5 — conductor, 6 — extension shoot, 7 — main structural branch, 8 — overgrown branches

The maximum diameter of the root branches of a walnut tree is 20 m . All this indicates the need for a spacious place for growing a tree. And it is also important that there is no neighborhood due to the fact that the tree will take a lot of water and nutrients, which will lead to the death of crops growing close to the nut. Thanks to the powerful and extensive structure of the nut-shaped root system of the walnut, landslides are perfectly strengthened, and also prevent the development of soil erosion.

How walnut roots grow

From the moment a walnut seed begins to germinate, the embryonic root first begins to appear and develop. Grafting of the grain occurs as soon as the "shrouds" of the dense shell begin to unfold and the root appears outside.

Importantly!  For the good development of the walnut root system, it is necessary to know the advantages of the plant in the choice of soil. The best options for the plant in question will be sandy, loamy, sod types of soil.

The main root is formed precisely from the sprouted root process, which increases in length quite quickly . In addition, there is an increase in the diameter of the roots, they go deeper into the soil to obtain the necessary moisture and nutrition for the still young crop. The root is thicker at the top, this place is intended for storing reserves of nutrients. The main root is in a vertical position, going down. And already from it, lateral ones are formed, which develop in a horizontal position parallel to the soil surface, and then deepen.

The main lateral roots have the following structure:

• semi-skeletal appendages;
• small semi-skeletal;
• small side;
• lobes

The last link in the structure of the lateral roots are thin lobes containing extremely active millimeter root processes that perform an absorbing function. Through these miniature root elements, the plant drinks water and absorbs nutrients .

A special feature of the culture in question is that its seedling begins to form the main taproot and lateral skeletal roots in parallel, which are characterized by large branching.

Importantly!  As with any fruit tree, the culture in question needs fertilizer, which should be applied with care, because the root system of the tree does not tolerate loosening, and in the summer they require rest.

The walnut has the following parameters of the root system during its growth:

1.  A walnut planted in the first year is distinguished by the fact that the main energy for the development of the seedling is concentrated on the root system, which is much larger in size than the stem itself.
2. A one-year-old plant  can have a root of more than two meters, provided the soil is chosen correctly (the soil and subsoil must be of medium to high fertility).
3. a two-year plant  will exceed the size of the trunk (in length) by 2 times.
4. A three-year-old walnut  can deepen its roots more than 6 meters.
5. The entire lateral structure of the root system  of an adult walnut  is 3.5-4 times larger than the diameter of the crown. And the vertically located roots of the plant go deeper for tens of meters.

Vertically directed roots extract trace elements and moisture from deep soil layers, and vertically directed roots spread the maximum possible soil space. A greater percentage of horizontally located root processes are at a depth of 90-150 cm from the soil surface.

Stopping the growth of the root system occurs with poor nutrition . It is known that the root system of a tree reaches those soil layers that are saturated with nutrients and avoid places "poor" for trace elements.

Do you know?  In horticultural practice, to ennoble the walnut tree, the growth of large roots was forcibly restrained. For this, in France, since the 19th century, trees have been grown on plots, tiles are tightly laid. And the seeds of this culture were planted in the soil poured on top of the tiles.

Study of the root system of the three-year-old tree in question, which was grown on a sandy type of soil, and the surface lateral roots were located in the planting pit. This is due to the fact that a lot of organic matter and mineral fertilizers were applied to the planting site, and the land of the site itself was not amenable to cultivation. Therefore,  the roots grow and branch out where there were more nutrients , and the main stem performs the function of searching for moisture in the depths of the soil.

Walnut roots and the foundation of the house

Walnut is considered a very popular plant among summer residents. Today you can find many country plots where these fruit trees are planted. But it should be noted that experienced gardeners do NOT plant the culture in question near houses, fences, baths and other buildings for objective reasons.

It will be correct to grow the plant in question on spacious areas. This necessity arises for two reasons:

• through a powerful root system;
• due to the overall spread of the crown.

Do you know?  Since ancient times, the method of "stone under the root" to redirect the growth of the main skeletal root in the right direction was considered a common scheme for planting walnuts in the Crimea.

Experts recommend planting the culture more than 8 meters away from buildings. An adult tree is characterized by long lateral roots, which quickly increase in diameter and spread in the underground territory of the site for more than 20 meters. Therefore, in the absence of free space, the root system will rest on the foundation and destroy it.

Thus, the walnut tree is distinguished by its overall structure of the root system, which deepens both into the lower layers of the soil and in width, spreading parallel to the soil surface. Such parameters of the root system indicate that the tree is not recommended to be planted near any buildings, so as not to destroy the foundation of the house.

Link to the site: https://diapason.com.ua/koreneva-sistema-voloskogo-goriha-shirina-i/

High-quality and original steel inserts are a wonderful decoration of exclusive and unique knives of the Studio of Studio Studio of exclusive handmade knives RUSLAN KNIVES (Ukraine), which offers to order and buy online store https://knife.net.ua or order by phone. +380961711010