Channel - size chart, assortment according to GOST

Such a common element of many supporting structures, as a channel, is a profile of U-shaped section, which can be made of different grades of steel, including stainless. Channels can differ not only in size (a special table is used to determine each of them), but also by manufacturing technology.

We understand the range of channels

Channels are made on cold-rolled and hot-rolled technology. U-shaped metal profiles of different brands have differences in the design of the shelves. So, there are channels, the inner boundaries of the shelves which are parallel to each other, as well as products, the shelves of which are made of some inclination from the inside. However, in any case, the shelves were made, the whole range of profiles with U-section is characterized by high rigidity, combined with light weight. Such properties allow to use successfully channels of any sizes for production of highly loaded designs of building and any other function..

The main advantages of U-shaped profiles include:

• high strength, which provides resistance to bending loads;
• the ability to successfully resist not only bending, but also loads of multidirectional nature (gap, compression, etc.);
• high resistance to shock loads, which can lead to mechanical damage to the structure (metal channel, which is made qualitatively and in accordance with GOST, has virtually no weaknesses in its design, capable of causing its destruction by various loads).

Channel parameters with a slope of internal faces of shelves

Marking

If you look at the range of channels, then you can see, that it includes Metal profiles with a wide range of sizes. In such a variety of options, it is very difficult to choose the right brand of channel, which will be optimal for solving a particular problem. Naturally, manufacturers have taken this into account. They use markings to mark their products, on which it is possible to make rather full idea of ​​characteristics and the sizes of the U-shaped profile.

Channel parameters with parallel faces of shelves

Marking, corresponding to GOST 8240-97, includes both digital, and letter designations. Number, which is the first in the designation, is the main characteristic, it corresponds to the size of the channel, that is, the distance between his regiments. The letter in the label can be identified, to which type the channel belongs. These can be products, in which the inner boundaries of the shelves are made with a slope or parallel to each other ( "B" and "P", respectively), Economic metal profiles ( "E") or light ( "L") type, special purpose ( "WITH" ).

If you need to know all the other sizes of the channel of a certain brand from the range, then there is a special table for this, in which they are listed. The choice of a product of a particular brand is made depending on, what loads the structure will be subjected to, for the manufacture of which it is planned to use.

With sloping shelves

Size chart for channels with sloping inner edges of shelves
(Click, to increase)

Explanation of additional parameters, listed in the table:

• I - moment of inertia;
• W is the moment of resistance;
• i is the radius of inertia.

With parallel faces of shelves

Size chart for channels with parallel edges of shelves
(Click, to increase)