Features steel 65h13: properties, hardness.

In modern metallurgy uses a huge amount of steel.Their characteristics, as well as the diversity of nomenclature, a truly immense.However, in the different sectors are still the most common varieties and performance of the material that is used for quite specific needs.

For example, the characteristics of steel 65h13 suggest its use as a material for the production of different blades.Why are we so adamant?To find out, you can read this article.

Steel.Features stainless steel

If you really simplify it became known as an alloy of iron and carbon.Many carbon - iron, low - tin."Median" state can be called steel.Its various types are defined not only and not so much the proportions of iron and carbon as the various alloying additions and impurities that impart various properties of steel.

properties of the alloy depend on the chemical components that go into their composition and the process conditions develop.Sometimes composite steel making, when it consists of several layers of different brands, or Damascus, where the material has several hundred layers (the same brand).The material may contain the following additional components:

• If the total amount of additives is less than 1.5%, then it is a modifier that improves the mechanical, physical and chemical properties of this category of materials.1.5% - dopant conferring resistance to steel corrosion.

• Carbon.This element, as we said, is present in all varieties of alloys, giving them stiffness and strength.The excess makes its steel iron.

Brief characteristics of knife steels

In general, the addition of iron in their composition are always carbon and chromium.Note that in the carbon steel for the blades can not be less than 0.5%.Experts believe that the optimal content - 1%.Steel, which already contained 1.25% carbon, become very hard, but it is extremely fragile.If there is a need for such a material, in its composition include vanadium and molybdenum.

However, there is also a damask steel, which generally contains 1.5-2% carbon (up to 4% in some cases).Their strength and flexibility is caused by a special technique of forging and hardening.

main alloying components

Chrome. This additive is needed to render the material resistant to wear as well as its possibilities for tempering.Of course, it makes a chrome stainless steel does.However, this category includes only the sort of material that contains at least 13% of the additive.In fairness it should be noted that almost any corrodes steel: it all depends on the operating conditions and the presence / absence of care.

Manganese .It gives the material special graininess and texture that facilitates a dramatic increase in the strength characteristics of the blade, as well as its stiffness.Is the concept of "steel deoxidation," which applies to those alloys which have been improved by the addition of manganese.Note that the characteristics become 65h13 (stiffness relative hardness) due to the presence of this type of additives.

Molybdenum. extremely important element, as it prevents brittleness and fragility of the blade, the material for the manufacture of which contains too much carbon.Importantly, steel, "air hardenable" in the structure have a minimum of 1% of molybdenum, by means of which this type of hardening is possible at all.Some believe that this is the supplement gives the alloy strength and hardness.

Nickel .Firstly, the alloy serves to impart the viscosity.Secondly, as a dopant, which protects the steel from corrosion.In general, by the combination of these qualities is very similar to molybdenum.

Silicon .Oddly enough, but it is used to make the elastic blade knife.In some respects, its properties are similar to those of manganese.

Wolfram .Extremely popular with the elite manufacturers of knives, as used for the sharp increase in the stability of the product to wear.He also gives a special steel hardness and resistance to even extreme temperatures.If tungsten is combined with molybdenum or chromium, the material becomes "HSS".Digress: tungsten, nickel and molybdenum - key additive not only in the manufacture of steel blade, but in the production tank armor.Without these elements, it is impossible to get a really high quality.

Vanadium .As many of these additives imparts hardness and strength of steel.It is extremely important in the production of fine-grained alloys.It is used not only for the manufacture of cutlery steels, but also for the development of the same tank armor.

Some believe that should be attributed to the additives and nitrogen, but this view is incorrect: the fact that it falls into the alloy from the air, and some effect on its performance does not have anymore.

Ballast

nitrogen, as well as some other elements that are always present in the steel.These elements are called ballast.However, they are still occasionally purposefully added to the alloy composition, since some of them are able to improve its performance.Some (sulfur and phosphorus, for example) do not have to be present in the alloy: the content is limited by numerous standards.

What we painted it all?The fact that you have to be clear about the general characteristics of the knife steels, as many of them are very specific, a little passing, for example, on the alloys used for the production of boilers, or something like that.Thus, in some cases, the steel grade 65h13, whose properties are described in detail below, due to the high content of phosphorus and sulfur becomes very unsuitable for the production of knives.

steel What is the most optimal for the production of knives?

So which brand is best suited for the production of knives?The question is very provocative, because it answers to thousands and no consensus (and can not be).Much depends on the method of quenching and finishing.Even the great steel can be turned into a piece of slag, it hardened properly.Experts believe that the most appropriate conditions for the majority of knives are made of a composite scheme: carbide "cheeks" and the core of mild steel.

But it's the lyrics, because we are interested in the brand of the material.Today we will consider steel 65h13, as its 97% of domestic manufacturers use knives.

General

This is the most common and domestic steel chassis, suitable for the manufacture of knives.Letter "X" in the middle of the name indicates that the composition has a chromium material, which makes it intractable corrosion.Most often, the steel used in the manufacture of medical instruments and equipment for the food industry.Knives from it also obtained quite decent quality, although some would argue that they quickly tupyatsya.

The special type of steel is characterized by 65h13?It is believed that knives she does not rust ever (if not to take into account the aggressive chemical environment).Not surprisingly, almost the entire range of domestic knives is produced from this material.It should be noted that the characteristics of steel 65h13 very close to the American brand 425mod.With good training, both materials show excellent results.

Hardness

Ironically, but even domestic fans knives sometimes diametrically disagree on the hardness of the steel.Some consider it a "soft", while others claim its "high hardness" or "average" performance.As things stand in reality?First, let's talk about the general concepts.

worldwide for the interpretation of Rockwell hardness units are used to indicate that there is a common designation HRc.It should be noted that the best indicator for the blades is 40 to 60 units, and for operating the tool best suited steel with a hardness of 52 to 58 units.If the manufacturer claims 60 or more Hrc, should be on the alert: either the product of extra class or banal divorce potential buyer.

So what are the characteristics of the steel 65h13?Experts say that at the competent quenched hardness of 56-59 HRC.Softness here and does not smell.So where did the stories that the steel is soft and wears quickly?It's simple.

point here is banal culture of production.It often happens that unscrupulous manufacturers do not pay much attention to tempering and annealing.In addition, it also happens that the steel 65h13 is generally not used, but instead serves Brand 20x13.Its hardening hardness just 45-48 units.Here and there the tradition of the "softness" were the real characteristic of which - 56-59 HRC Rockwell units!

short, close the topic.Once and for all - steel 65h13 (reviews of the knives of which will be discussed below) are sufficiently cheap and common, but it is a solid (albeit not very good ones).Important!It's worth noting that this material kalit hardness more than 57 units Roksvella at home is not worth it, because such a blade can still start the chip under load.

Other benefits

working edge of the blades is not prone to chipping, even with intensive use, the blade will be good to keep as strong curves and bumps.Due to the lack of quality in the steel alloying elements blade will grow blunt rather quickly, but it can undermine and quickly.Of course, due to the lack of the same additive tribological properties of the steel grades are not good, but they are much better than similar indicators really soft varieties.

But experienced travelers and lovers of knives say about another advantage of this alloy and knives out of it.As a part of this material is practically no dopants, which would provide increased strength (see below), the geometric configuration of the knife can be absolutely any.This 65h13 (reviews say the same thing) compares favorably with the "professional" grades of steel, with whom such an approach will not do.

chemical composition of steel

Remember what we talked about at the very beginning of the article?We have discussed various additives which may be present in the material for the blades.What is steel 65h13?Reviews indicate that this material into the category of elite does not apply, and so there is a simple explanation.To make it easier to understand, easy to read table that we present below.

That's the difference between steel 65h13.Characteristics (ratings depend on them directly) indicate that all of the alloying elements in this case there is sufficient only chromium.This provides an excellent corrosion resistance.Relatively strong as wear and the need for frequent sharpening due to the lack of specialized additives.

Important!The table shows that the brand 65h13 (feedback which we are considering) a little sulfur and phosphorus.But!In stores full of Chinese handicrafts which are made (like) of the steel, which includes more than 0.06% sulfur and phosphorus.That's too bad, because the hardness 65h13 further reinforces the negative manifestations of these impurities garbage.

Firstly, the Chinese already often overheat knife.Accordingly, this leads to chipping blade.Secondly, a high content of harmful impurities leads to a sharp increase in the risk of fracture cold knife even at medium intensity.By the way, on this nuance it depends on the emergence of the overwhelming majority of negative reviews.

short, we once again explain some of the attacks that exposed steel 65h13 (characteristics) of the Chinese .Nozh alloy, even etched on it and the name of the brand, not to be taken lightly!Unfortunately, many inexperienced tourists, fishermen and hunters completely forget about the manufacturer, preferring to blame for the broken blade blame on the very brand of steel, although it is in this case, and at anything.

reviews knives

As you can see, the opinion of the alloy knife missing.And a lot of both positive and highly negative reviews.Reasons of both we quite examined in detail above, and therefore on the overall points will not have to stop.Let's talk about the individual knives of the steel, which is particularly prevalent among the local fishermen, mushroom pickers and hunters.

«Bear»

General characteristics are:

• total length of 23.5 centimeters.

• directly to the blade length - 11.5 cm.

• Blade width is 28 mm.

• Blade thickness - 2.8 mm.

knife handle is equipped with a relatively thick (3.3 cm), which lies comfortably in the hand and does not slip, even if a person sweats.Other features vary from vendor to vendor.Thus, in some cases, the blade has a etch a bear, while other manufacturers do not practice this.

As a rule, there is no guard on the blade, but many manufacturers are additionally stipulate the possibility of its installation (even of precious metals).In all cases, the handle is made of walnut, but the method of fixing it is different (often found conventional riveting).

However, we are not interested in it.What is interesting knife 65h13 "The Bear" to customers as people speak about it already made a purchase?First, they like the price: from 1350 rubles in the "base set" no frills and precious metals in the decoration.For this sum, judging by the reviews, you get a beautiful knife outdoor activities, which the field can sharpen almost "a stone."

Since the length of the blade fits into the police regulations, machetes "Bear" is not.Many people like simple, without abrupt and winding lines, the geometry of the cutting part.In the knife is easy to care.It is important to pay attention to the purchase is not stingy whether a particular manufacturer to a normal nail stick.Judging by the reviews, this often saves.In addition, we strongly recommend choosing a model with Garda some manufacturers handle is not very good shape, but because hand smeared in blood or fat, can slip on the cutting edge.

For this reason, we recommend to buy "Bear" with birch handle, since it is practically non-slip hand.

«Tiger»

Another member of the knife "zoo."In contrast to the previous species, is officially carving.As in the previous case, the blade can be applied to the drawing.A much wider potential names for the wood handle, from all the same nut to wenge and other fine breeds.Himself Knife "Tiger" 65h13 has the following characteristics:

• total length of 27 centimeters.

• Blade - 14.5 centimeters.

• Attention is drawn to the width of the blade, which is equal to 42 mm.

• Included are leather sheath.

As you can see, the dimensions of the knife much more those of "The Bear".That is why it is particularly popular with fishermen and hunters who prefer long forays into the forest: judging by the reviews, people are impressed by a long blade, which is convenient to carve prey.Like all other blades of steel 65h13, relatively quickly blunts the intensive operation, but just as quickly tochitsya.At the same time, as in the previous as often manage to do the simplest devices.

In some cases, vendors in order to attract "aesthetes" curry with this knife very exotic things.