A range of corners. Angles steel hot-rolled unequal: assortment

The range of corners of steel is divided into two types of rolled: equal and unequal. Based on the name, you can understand that the first parts have the same width of the wall, and the second - respectively, of different widths. Unlike the assortment of beams and channels, the collection of varieties and types of these corners is much wider.

Consider what this term means. A range of metal corners is a list of geometric data, shelf dimensions, remote weight, and tolerances. Also this includes the terms of delivery. Below we will consider all these characteristics.

The range of corners of unequal

It should be noted that all corners should be manufactured exclusively according to the requirements of GOST. This type of materials is produced according to GOST 8510-86 from low-alloyed (these are the brands 08G2S, 16GS, 17GS, 17G1S and many others) and carbon steel ( st0, st4ps, st4sp and others).

Despite the fact that the creation of metal products, as well as their design forms is quite extensive and diverse, the manufacture of these structures is quite economical. This is facilitated by the range of corners of the unequal, in which a wide variety of different hot-rolled profiles. And also the frequent gradation of the size of the product.

Properties and characteristics

Perhaps the main and most important characteristic of these metal parts is strength. Its readings may vary during cold fading. This is the name of the procedure for strengthening the metal, which occurs due to plastic deformation. When straightening steel rolled products, where the thickness of the shelf is 3-5 mm, as well as with other power operations, certain properties must be taken into account. For example, if you increase the force of pressing the punch instead of improving the quality of the fit during the check on the plate, then the warping of the metal result will be absolutely the opposite. If you produce a corner, the GOST assortment that does not respond, often there is a cracking of the metal in the areas where the cold work was performed. Thus, these designs do not have an adequate margin of safety, therefore their service life is significantly reduced.

What do you need to know when buying?

When choosing a corner, be sure to know where it will be located and what kind of environment there is. If the latter is aggressive or has increased humidity, the best option for buying will be a product made of galvanized steel. Only thus it should be executed according to all rules and requirements of GOST. The range of corners from this type of steel is most often used in galvanized power transmission lines.

Production and application of uneven profiles of galvanized steel

G-shaped profiles are produced in two ways - hot and cold galvanized. Hot galvanizing makes the products more durable. Therefore, the corners of steel hot-rolled unequal, whose range is quite wide, are used in structures with a high load of metal. For other cases, the profiles of cold galvanizing are excellent.

The mass of the unequal corner in accordance with GOST 8510-86

Corners have a very wide choice of sizes (from 25 mm to 200 mm), respectively, and the mass of them, too, will be different. In the table, we'll look at some profiles.

According to GOST - unequal corner, the assortment of which is quite wide, should be made of carbon and low-alloy steel grades.

Quality, production and efficiency of hot rolled corners

The production of these profiles is made according to GOST, which requires certain dimensions and accuracy. But in the production of custom-made corners can be a length of 7, 9, 12 meters. And finished products can be made more accurate.

8510-93 GOST - unequal, the assortment of which corresponds to all norms. In order not to be deceived and not to buy a marriage, be sure to purchase products according to the State Standard.

The equilateral corner should correspond to the standard № 8509-93.

These materials are widely used. They are in demand in construction, the creation of a variety of metal products. Also with their help metal structures are created, even in everyday life without this profile it is quite difficult to manage. For the production of hot-rolled corners, grade 3 steel is used. But in the construction of the strength of this model is not enough. Therefore, profiles are produced mainly from grade 09G2S. Corners from it can be installed without weighting. For the production of profiles the most demanded metal is black ordinary quality steel.

Galvanized steel corner hot-rolled - assortment

Due to good resistance to metal corrosion, the main purpose of this corner is to secure the external structure. The galvanized corner is used in two types of construction: civil and industrial. For example, when covering a building with a roof, use galvanized roofing parts. Such corners look more aesthetically and modern. Therefore, they can be used in decorating buildings, even on the inside.

Equal type

It is strong enough and at the same time relatively light. Due to such advantages, this profile is often used in the erection and installation of load-bearing and non-structural steel structures and bases. Corner not only can replace the reinforcement, it will make the construction much stronger. And its installation is much simpler and takes less time. Despite such a number of advantages in front of the armature, the equilateral corners can be purchased at practically the same price.

The equable corner has a regular L-shaped cross-section, it is made on tube mills of high-quality structural metal. Such profiles are one of the main and basic elements of metal structures.

Applications

The steel corner, the assortment of which corresponds to the state standard, is used in many spheres of construction. The main ones are:

• Monolithic concreting.
• Construction of rigid reinforcement structures.
• Installation and installation of jumpers, as well as other cases.
• In combination with other profiles, like the channels, the corner is used to reinforce concrete as a rigid reinforcement.
• Heavyweight and large-span coatings and ceilings.

Also, metal corners are often used to connect rails of different types.

Still use these profiles in the connection of different fence elements. Today, to meet the established solid fence, which would not have bends, is very difficult. Therefore, for the connection of bends, the available assortment of corners is also often used. Their steel will help the fence withstand strong wind and other natural disasters. Another use of the L-shaped profile in everyday life is to help create a home interior.

Most furniture manufacturers also use metal corners in their work, even if they are soft furniture. After all, its connections without the use of these details can not withstand a heavy load. This, in turn, sooner or later, will lead to its breakdown.

Varieties

The range of the angle of the equinox is very extensive and has more than 20 profiles. Let's consider some kinds.

• Profile No. 2: 1) shelf width - 20 mm; 2) thickness - 3, 4 mm; 3) radius of inner rounding - 3.5 mm; 4) radius of curvature of the shelf - 1.2 mm; 5) cross-sectional area - 1.13, 1.46 cm²; 6) weight - 0.89, 1.15 kg.
• Profile No. 11: 1) Shelf width - 110 mm; 2) thickness - 7, 8 mm; 3) radius of inner rounding - 12 mm; 4) radius of curvature of the shelf - 4 mm; 5) sectional area - 15.15, 17.2 cm²; 6) weight - 11.89; 13.5 kg.
• Profile No. 14: 1) the width of the shelf is 140 mm; 2) thickness - 9, 10, 12 mm; 3) radius of inner rounding - 14 mm; 4) radius of curvature of the shelf - 4.6 mm; 5) cross-sectional area - 24.72, 27.33; 32.49 cm²; 6) weight - 19.41, 21.45, 25.5 kg.

Despite the variety, the range of the corner of the equinox should comply with all norms and rules of GOST. If you see a marriage - from the acquisition profile should be discarded.

Production and specifications

Metal corners are made according to GOST 380-94 standards - for carbon steel, or GOST 19281-89 - for low-alloy steel, which is characterized by high strength. The processing of metal in these cases is hot rolling.

A wide range of products is explained by their technical characteristics:

• The products have a very high level of rigidity.
• Despite the rigidity, the corner has a rather small weight. Take, for example, a meter section of a part that has sides of 25x25 mm and a thickness of 3 mm. It weighs only 1.12 kg. The largest mass will have a corner with sides of 200 mm and a thickness of 12 mm - 37 kg. However, even such indicators are much lower than the weight of other metal structures that have the same level of strength.
• Due to the shape features, the corner is able to withstand a heavy load. This allows you to use it even when building large spans in buildings, such as an industrial warehouse or production hall.

In addition to standard sizes, manufacturing companies can produce metal corners on request. Of course, if the ordered size can be performed on the existing equipment.

How and where to buy?

If it became necessary to purchase a steel corner, it is not difficult to find a firm that sells them. However, first you need to know about the reliability of the company. For this, it is necessary to get acquainted with the reviews. Optimum, if there are friends who already had to deal with a particular firm. It is not necessary to conclude a supply agreement ahead of time. You can do this only when you find out that the feedback about the company is only positive and you can trust it. This caution is necessary in order not to be deceived. If you know that the company is reliable, and the quality of the profiles and the metal itself at a high level, you can confidently make an order. It is desirable that the company produces a wide range of corners.

Raw materials, construction, as well as dimensional data and brand of material must necessarily comply with all applicable rules and regulations at the manufacturer. Even better, if all the requirements coincide with the state standard. If you have chosen the right and the right company, a quality product is guaranteed.

Before buying a corner, it is necessary to consult with an understanding in this case the master. After all, from the specifics of the application depends on the desired choice of the corner type. Even a small error or error in size will lead to the fact that the whole structure, which is fixed by means of corners, will not be able to fulfill its direct duty. Accordingly, this will lead to the replacement of the corner. But to do this, you have to disassemble part of the design, and sometimes even the design completely. As a result - wasted unnecessary time, money, and sometimes even nerves.

So, we found out which corner has a steel unequal assortment. In conclusion, we can conclude that, despite its lightweight design, the importance of detail in professional construction and in everyday life is hard to overestimate. And it does not matter which corner - steel unequal, the assortment of which is one of the widest, or any other. As you can see, it is not so difficult to understand the types of these metal products. When buying corners, pay great attention to whether they comply with the state standard. After all, products that do not meet the requirements of GOST are much less reliable and stable. And this means that your design will not withstand the proper loads and will simply collapse.