First of all, I would like to say in general terms what a channel is. Channels are special metal parts that are very widely used in construction in order to give the greatest strength to frames and structures.
The 12 mm channel is in demand in many types of production:
- In construction for the construction of bridges, columns, etc.
- For mechanical engineering.
- Car manufacturing.
Channel 12 allows not only to give the frame strength and stability, but also to increase the load-bearing load that the frame must withstand. This is how the channel strengthens internal and external walls, and also assembles individual parts of buildings and structures.
Channel 12 technical specifications
The established quality standards of GOST 8240-89 provide for the following product characteristics:
- channel area 12 - 43.1 sq.m / ton of profile;
- workpiece height - 120mm;
- shelf thickness - 7.8mm;
- the specific weight of a channel of 12 linear meters is 10.4 kg with a steel density of 7850 kg/m3;
- product wall thickness - 4.8 mm;
- shelf width - 52mm;
- cross-sectional area - 13.30 cm2;
- R internal rounding, no more than 7.5 mm;
- r shelf rounding - 3mm.
The maximum load on the 12th channel is indicated in the accompanying documentation, but if you wish, you can always request information from the plant’s engineering department - class=”aligncenter” width=”800″ height=”800″[/img]
Channel weight 12
Regardless of the fact that the product is made of alloys and has the appropriate strength, the 12-meter channel has a low weight per linear meter. This is an important factor due to which the product is in great demand. The weight of 1 meter of channel is 12 – 10.4 kg.
Channel 12 has a huge range and has different lengths of the product and direction of the edges. Each profile is marked depending on the location of the shelves. For example, channel 12 P has shelves parallel to each other, while channel 12 U has shelves located at an angle.
Bent steel channels, unequal flange GOST 8281-80
Another type of channels (one of the most popular) is an unequal bent profile.
Due to the peculiarities of production (formation from a profile on sheet bending machines), such a profile is obtained in more accurate dimensions. In addition, the bent profile has better weldability. Areas of application: from welding building frames and structures to use in cars, ships, and machine tools.
Bent unequal steel channels GOST 8281-80 made of carbon boiling and semi-quiet steel with a temporary tensile strength of no more than 460 N/mm.sq.
Bent unequal steel channels GOST 8281-80. Size and Weight Chart
| Channel number (hхb) | b1 | S | R | n | n1 | n2 | Cross-sectional area, F, cm2. | Weight of 1 linear meter of channel, kg | |
| channel | 32 x 22 | 12 | 3 | 5 | 5,3 | 4,63 | 1,3 | 1,63 | 1,28 |
| channel | 32 x 32* | 20 | 2 | 3 | 11,0 | 13,5 | 7,5 | 1,53 | 1,20 |
| channel | 32 x 40* | 15 | 3 | 5 | 5,3 | 7,3 | 2,3 | 2,26 | 1,78 |
| channel | 32 x 50 | 20 | 4 | 6 | 3,0 | 10,0 | 2,5 | 3,49 | 2,74 |
| channel | 35 x 35 | 26 | 2,5 | 4 | 8,8 | 15,4 | 7,8 | 2,16 | 1,70 |
| channel | 37 x 60 | 32 | 3 | 5 | 7,0 | 17,3 | 8,0 | 3,52 | 2,77 |
| channel | 40 x 32* | 20 | 2 | 3 | 15,0 | 13,5 | 7,5 | 1,69 | 1,33 |
| channel | 40 x 40* | 20 | 2 | 3 | 15,0 | 17,5 | 7,5 | 1,85 | 1,45 |
| channel | 40 x 50* | 32 | 3 | 5 | 8,0 | 14,0 | 8,0 | 3,31 | 2,60 |
| channel | 43 x 106 | 32 | 3 | 5 | 9,3 | 32,6 | 8,0 | 5,08 | 3,99 |
| channel | 45 x 25 | 15 | 3 | 5 | 9,7 | 5,7 | 2,3 | 2,20 | 1,73 |
| channel | 50 x 40 | 12 | 2,5 | 4 | 14,8 | 13,3 | 2,2 | 2,31 | 1,82 |
| channel | 50 x 48 | 15 | 3 | 5,0 | 11,3 | 13,3 | 2,3 | 3,04 | 2,39 |
| channel | 50 x 40* | 20 | 2 | 3 | 20,0 | 17,5 | 7,5 | 2,05 | 1,61 |
| channel | 50 x 50* | 15 | 3 | 5 | 11,3 | 14,0 | 2,3 | 3,10 | 2,44 |
| channel | 50 x 50* | 25 | 2 | 3 | 19,0 | 21,0 | 9,5 | 2,35 | 1,85 |
| channel | 50 x 50* | 25 | 3 | 5 | 11,3 | 14,0 | 5,6 | 3,40 | 2,67 |
| channel | 50 x 50 | 25 | 4 | 6 | 7,5 | 10,0 | 3,7 | 4,41 | 3,46 |
| channel | 50 x 55 | 30 | 2 | 3 | 20,0 | 25,0 | 12,5 | 2,55 | 2,00 |
| channel | 50 x 60 | 32 | 3 | 5 | 11,3 | 17,3 | 8,0 | 3,91 | 3,07 |
| channel | 50 x 60* | 32 | 4 | 6 | 7,5 | 12,5 | 5,5 | 5,09 | 3,99 |
| channel | 50 x 92 | 60 | 3 | 5 | 11,3 | 28,6 | 17,3 | 5,71 | 4,48 |
| channel | 60 x 40* | 20 | 2 | 3 | 25,0 | 17,5 | 7,5 | 2,25 | 1,77 |
| channel | 60 x 50* | 25 | 3 | 5 | 14,6 | 14,0 | 5,6 | 3,70 | 2,91 |
| channel | 60 x 60* | 32 | 3 | 5 | 14,6 | 17,3 | 8,0 | 4,21 | 3,31 |
| channel | 65 x 55 | 20 | 2,5 | 4 | 20,8 | 19,4 | 5,4 | 3,26 | 2,56 |
| channel | 65 x 65 | 40 | 4 | 6 | 11,25 | 13,75 | 7,5 | 6,21 | 4,87 |
| channel | 67 x 65 | 35 | 3 | 5 | 17,0 | 19,0 | 9,0 | 4,66 | 3,66 |
| channel | 70 x 80 | 50 | 4 | 6 | 12,5 | 17,5 | 10,0 | 7,41 | 5,81 |
| channel | 80 x 50* | 25 | 3 | 5 | 21,3 | 14,0 | 5,6 | 4,30 | 3,38 |
| channel | 80 x 60* | 32 | 3 | 5 | 21,3 | 17,3 | 8,0 | 4,81 | 3,78 |
| channel | 80 x 60* | 40 | 3 | 5 | 21,3 | 17,3 | 10,6 | 5,05 | 3,97 |
| channel | 80 x 80* | 40 | 3 | 5 | 21,3 | 24,0 | 10,6 | 5,65 | 4,44 |
| channel | 80 x 80* | 40 | 5 | 7 | 11,2 | 13,6 | 5,4 | 9,09 | 7,14 |
| channel | 80 x 80 | 50 | 4 | 6 | 15,0 | 17,5 | 10,0 | 7,81 | 6,13 |
| channel | 90 x 80 | 50 | 4 | 6,0 | 14,5 | 14,5 | 10 | 8,21 | 6,44 |
| channel | 100 x 50* | 25 | 3 | 5 | 28,0 | 14,0 | 5,6 | 4,90 | 3,85 |
| channel | 100 x 60* | 32 | 3 | 5 | 28,0 | 17,3 | 8,0 | 5,41 | 4,25 |
| channel | 100 x 80* | 40 | 3 | 5 | 28,0 | 24,0 | 10,6 | 6,25 | 4,91 |
| channel | 100 x 80 | 50 | 4 | 6 | 20,0 | 17,5 | 10,0 | 8,61 | 6,76 |
| channel | 100 x 80 | 50 | 5 | 7 | 15,2 | 13,6 | 7,6 | 10,59 | 8,31 |
| channel | 100 x 100* | 60 | 4 | 6 | 20,0 | 22,5 | 12,5 | 9,80 | 7,70 |
| channel | 100 x 100 | 60 | 6 | 9 | 15,0 | 14,2 | 7,5 | 14,26 | 11,20 |
| channel | 100 x 180 | 35 | 8 | 12 | 7,5 | 20,0 | 3,13 | 22,82 | 17,91 |
| channel | 120 x 45* | 35 | 5 | 7 | 19,2 | 6,6 | 4,6 | 9,19 | 7,14 |
| channel | 120 x 60 | 50 | 5 | 7 | 19,2 | 9,6 | 7,6 | 10,59 | 8,31 |
| channel | 130 x 108 | 50 | 4 | 6 | 27,5 | 24,5 | 10,0 | 10,93 | 8,58 |
| channel | 135 x 50 | 36 | 4 | 6 | 28,75 | 10,0 | 6,5 | 8,25 | 6,47 |
| channel | 140 x 70 | 30 | 4 | 6 | 30,0 | 15,0 | 5,0 | 9,01 | 7,07 |
| channel | 144 x 160 | 90 | 6 | 9 | 19,0 | 24,2 | 12,5 | 22,30 | 17,51 |
| channel | 160 x 50 | 30 | 3 | 5 | 48,0 | 14,0 | 7,3 | 6,85 | 5,38 |
| channel | 160 x 50* | 30 | 4 | 6 | 35,0 | 10,0 | 5,0 | 9,01 | 7,07 |
| channel | 160 x 80 | 50 | 5 | 7 | 27,2 | 13,6 | 7,6 | 13,59 | 10,67 |
| channel | 200 x 50 | 30 | 4 | 6 | 45,0 | 10,0 | 5,0 | 10,61 | 8,33 |
| channel | 270 x 90 | 72 | 8 | 12 | 28,75 | 8,75 | 6,5 | 32,18 | 25,26 |
| channel | 270 x 90 | 80 | 6 | 9 | 40,0 | 12,5 | 10,8 | 25,06 | 19,67 |
| channel | 300 x 80 | 40 | 4 | 6 | 70,0 | 17,5 | 7,5 | 16,21 | 12,72 |
| channel | 300 x 80 | 40 | 5 | 7 | 55,0 | 13,6 | 5,6 | 20,09 | 15,77 |
Bent unequal steel channels GOST 8281-80 made of carbon boiling and semi-quiet steel with a temporary tensile strength of over 460 N/mm.sq.
Bent steel channels, unequal flange, over 460 GOST 8281-80
| Channel number (hxb) | b1 | s | R | n | n1 | n2 | Cross-sectional area, F (cm2) | Weight of a linear meter of channel, kg | |
| channel | 32 x 22 | 12 | 3 | 7 | 4,0 | 4,0 | 0,7 | 1,58 | 1,24 |
| channel | 32 x 32* | 20 | 2 | 5 | 9,0 | 12,5 | 6,5 | 1,50 | 1,18 |
| channel | 32 x 40* | 15 | 3 | 7 | 4,0 | 10,0 | 1,6 | 2,21 | 1,74 |
| channel | 32 x 50 | 20 | 4 | 10 | 1,0 | 9,0 | 1,25 | 3,35 | 2,63 |
| channel | 35 x 35 | 26 | 2,5 | 6 | 7,2 | 10,6 | 7,0 | 2,12 | 1,66 |
| channel | 37 x 60 | 32 | 3 | 7 | 6,3 | 13,9 | 7,9 | 3,47 | 2,72 |
| channel | 40 x 32* | 20 | 2 | 5 | 13,0 | 12,5 | 6,5 | 1,66 | 1,30 |
| channel | 40 x 40* | 20 | 2 | 5 | 13,0 | 16,5 | 6,5 | 1,82 | 1,43 |
| channel | 40 x 50* | 32 | 3 | 7 | 6,9 | 13,3 | 7,3 | 3,26 | 2,56 |
| channel | 43 x 106 | 32 | 3 | 7 | 7,7 | 28,7 | 7,3 | 5,03 | 3,95 |
| channel | 45 x 25 | 15 | 3 | 7 | 8,33 | 5,0 | 1,66 | 2,15 | 1,69 |
| channel | 50 x 40 | 12 | 2,5 | 6 | 18,8 | 12,6 | 1,4 | 2,27 | 1,78 |
| channel | 50 x 48 | 15 | 3 | 7 | 10 | 12,7 | 1,7 | 2,99 | 2,35 |
| channel | 50 x 40* | 20 | 2 | 5 | 18,0 | 16,5 | 6,5 | 2,02 | 1,58 |
| channel | 50 x 50* | 15 | 3 | 7 | 10,0 | 13,3 | 1,6 | 3,05 | 2,40 |
| channel | 50 x 50* | 25 | 2 | 5 | 18,0 | 21,5 | 9,0 | 2,32 | 1,82 |
| channel | 50 x 50* | 25 | 3 | 7 | 10,0 | 13,3 | 5,0 | 3,35 | 2,63 |
| channel | 50 x 50 | 25 | 4 | 10 | 5,5 | 9,0 | 2,75 | 4,27 | 3,35 |
| channel | 50 x 55 | 30 | 2 | 5 | 18,0 | 24,0 | 11,5 | 2,52 | 1,98 |
| channel | 50 x 60 | 32 | 3 | 7 | 10,0 | 16,7 | 7,3 | 3,86 | 3,03 |
| channel | 50 x 60* | 32 | 4 | 10 | 5,5 | 11,5 | 4,5 | 4,95 | 3,88 |
| channel | 50 x 92 | 60 | 3 | 7 | 10,0 | 27,3 | 16,7 | 5,66 | 4,44 |
| channel | 60 x 40* | 20 | 2 | 5 | 23,0 | 16,5 | 6,5 | 2,22 | 1,74 |
| channel | 60 x 50* | 25 | 3 | 7 | 13,3 | 13,3 | 5,0 | 3,65 | 2,87 |
| channel | 60 x 60* | 32 | 3 | 7 | 13,3 | 16,6 | 7,3 | 4,16 | 3,27 |
| channel | 65 x 55 | 20 | 2,5 | 6 | 19,2 | 18,6 | 4,6 | 3,22 | 2,53 |
| channel | 65 x 65 | 40 | 4 | 10 | 9,25 | 12,75 | 6,5 | 6,07 | 4,76 |
| channel | 67 x 65 | 35 | 3 | 7 | 16,3 | 18,3 | 8,3 | 4,61 | 3,62 |
| channel | 70 x 80 | 50 | 4 | 10 | 10,5 | 16,5 | 9,0 | 7,27 | 5,71 |
| channel | 80 x 50* | 25 | 3 | 7 | 20,0 | 13,3 | 5,0 | 4,25 | 3,34 |
| channel | 80 x 60* | 32 | 3 | 7 | 20,0 | 16,6 | 7,3 | 4,76 | 3,74 |
| channel | 80 x 60* | 40 | 3 | 7 | 20,0 | 16,6 | 10,0 | 5,00 | 3,93 |
| channel | 80 x 80* | 40 | 3 | 7 | 20,0 | 23,3 | 10,0 | 5,60 | 4,40 |
| channel | 80 x 80* | 40 | 5 | 12 | 9,1 | 12,6 | 4,6 | 8,88 | 6,97 |
| channel | 80 x 80 | 50 | 4 | 10 | 13 | 16,5 | 9,0 | 7,67 | 6,02 |
| channel | 90 x 80 | 50 | 4 | 10 | 18 | 16,5 | 9 | 8,07 | 6,33 |
| channel | 100 x 50* | 25 | 3 | 7 | 26,6 | 13,3 | 5,0 | 4,85 | 3,81 |
| channel | 100 x 60* | 32 | 3 | 7 | 26,6 | 16,3 | 7,3 | 5,36 | 4,21 |
| channel | 100 x 80* | 40 | 3 | 7 | 26,6 | 23,3 | 10,0 | 6,20 | 4,87 |
| channel | 100 x 80 | 50 | 4 | 10 | 18,0 | 16,5 | 9,0 | 8,47 | 6,65 |
| channel | 100 x 80 | 50 | 5 | 12 | 13,2 | 12,6 | 6,6 | 10,38 | 8,15 |
| channel | 100 x 100* | 60 | 4 | 10 | 18,0 | 21,5 | 11,5 | 9,67 | 7,59 |
| channel | 100 x 100 | 60 | 6 | 14 | 10,0 | 13,3 | 6,7 | 14,0 | 10,99 |
| channel | 100 x 180 | 35 | 8 | 20 | 5,5 | 19,0 | 1,0 | 22,27 | 17,48 |
| channel | 120 x 45* | 35 | 5 | 12 | 17,2 | 5,6 | 3,6 | 8,88 | 6,97 |
| channel | 120 x 60 | 50 | 5 | 12 | 19,2 | 8,6 | 6,6 | 10,38 | 8,15 |
| channel | 130 x 108 | 50 | 4 | 10 | 25,5 | 23,5 | 9,0 | 10,79 | 8,47 |
| channel | 135 x 50 | 36 | 4 | 10 | 26,75 | 9,0 | 5,5 | 8,11 | 6,36 |
| channel | 140 x 70 | 30 | 4 | 10 | 28,0 | 14,0 | 4,0 | 8,87 | 6,96 |
| channel | 144 x 160 | 90 | 6 | 14 | 17,8 | 23,3 | 11,67 | 22,04 | 17,30 |
| channel | 160 x 50 | 30 | 3 | 7 | 46,67 | 13,3 | 6,7 | 6,80 | 5,34 |
| channel | 160 x 50* | 30 | 4 | 10 | 33,0 | 9,0 | 4,0 | 8,87 | 6,96 |
| channel | 160 x 80 | 50 | 5 | 12 | 25,2 | 12,2 | 6,6 | 13,38 | 10,50 |
| channel | 200 x 50 | 30 | 4 | 10 | 43,0 | 9,0 | 4,0 | 10,47 | 8,22 |
| channel | 270 x 90 | 72 | 8 | 20 | 26,75 | 7,75 | 5,5 | 31,63 | 24,83 |
| channel | 270 x 90 | 80 | 6 | 14 | 38,3 | 11,67 | 10,0 | 24,80 | 19,47 |
| channel | 300 x 80 | 40 | 4 | 10 | 68,0 | 16,5 | 9,0 | 16,07 | 12,61 |
| channel | 300 x 80 | 40 | 5 | 12 | 53,0 | 12,6 | 4,6 | 19,88 | 15,60 |
Below you can download additional information, GOST standards for channels in pdf format.
| Attention Bearing Buyers Dear customers, send your questions and requests for the purchase of bearings and components by email or call now: Delivery of bearings throughout the Russian Federation and abroad. Bearing catalog on the website |
Attention Bearing Buyers
Dear customers, send your questions and requests for the purchase of bearings and components by email or call now: +7 [email protected] Delivery of bearings in the Russian Federation and abroad. Bearing catalog on the website
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Features of channel 12
Due to the fact that the channel is manufactured in accordance with GOST, the entire range has many advantages and features. A distinctive feature of channel 12 is the rounding of the flange, which is also prescribed in GOST and has certain standards.
GOST channel 12 is a generally accepted instruction for the presented range. This document must be followed by every company producing this channel. If the channel is made according to all the above documents, then the result is an ideal material that can be used for your purposes.
Each channel has its own quality certificate, which confirms that the product is manufactured in accordance with GOST. Channel 12 is no exception and also has such a document. The quality certificate for the 12-meter channel can be seen in the following photo.
How are channels produced?
In accordance with GOST 8240-97, channel 12 is manufactured at enterprises. The material for the channel is alloys with the addition of structural carbon and low-alloy steel. Such steels are marked st3ps and 09G2S, respectively. The chemical composition of the first is very diverse and includes many different metals. In addition, ferrous metal or aluminum can be used.
The entire range of 12mm channel bars manufactured in accordance with GOST 8240-97 has special designations that indicate the manufacturing method. So, for example:
- C - special channel. GOST does not specify the dimensions of this channel. Often, such an assortment is manufactured according to a special order with certain parameters required by the customer.
- The P-channel is manufactured with shelves parallel to the base.
- U-shelves are located at an angle to the base.
- E-economical option. Manufacturing takes place in accordance with GOST, but less metal is used in the production process.
- L - light profile. Light metals such as aluminum are used for production.
- B - special marking, which indicates that such a channel is intended for automobile and carriage building.
- T-profiles for tractors.
In order to better understand the various channel markings, you can see the following photo.
The entire range of channel manufacturing differs in production methods:
- Hot rolled method.
- Bent or cold rolled.
- Special.
Channel 12 is produced according to option 1, namely hot rolling. All this is specified in GOST 8240-97.
Common parameters:
Channels 12 and 12P have identical parameters with the exception of the flange radius r.
- shelf base height (h): 120 (mm);
- shelf width (b): 52 (mm);
- wall thickness (s): 4.8 (mm);
- shelf thickness (t): 7.8 (mm);
- internal radius (R): 7.5 (mm);
- radius of curvature of the shelf with the slope of the internal edges of the shelves (r): 3 (mm);
- radius of curvature of the shelf with parallel edges of the shelves (r): 4.5 (mm).
Important: the data is valid for hot-rolled steel channels in accordance with GOST 8240-89.
How much does 1 meter of channel weigh - Standard sizes
Ordering a channel: what characteristics you need to know
Metal products for the construction of structures of varying complexity are selected strictly according to the required parameters. The abundance of standard sizes and their modifications makes it easy to choose the most suitable type. Most often, two modifications of channel products are selected:
- With parallel edges. Metal products are used in the construction industry, including for repair work and the creation of metal structures of varying complexity. The parallel edges have the optimal distance for laying bricks. Creating and strengthening openings with their help is easy.
- With slanted edges inward. The second most popular version of channel models is used in the field of small and large construction.
There are additional types of metal products that are in demand. Profiles can be special, economical, and lightweight. They are marked with the letters “S”, “E”, “L”, respectively. Special and economical products are made to order. The first is based on the personal dimensions of customers, the second is with reduced shelf thickness. This allows you to reduce the total weight of 1 m of channel and the entire finished structure.
The lightweight standard size is suitable for less critical buildings where it is not necessary to create a large-scale stiffening frame. The marking “a” is placed on models of the “P” and “S” series. It denotes the weighted mass of the channel. Most often, metal depots always have categories “P” and “U” in stock - they are in demand among customers.
How much does a channel weigh, other sizes
For production, the standard steel used is St3ps-5 grade - the basis for the strength and indestructibility of metal structural parts. Hot-rolled models are produced from other suitable steel grades - carbon, high-alloy, atmospheric corrosion-resistant. 09G2S is often added to the St3 brand. The table below shows the weight characteristics of metal products.
| Number | Channel weight P | Channel mass U | Channel mass E | Channel mass C | Channel weight L |
| 5 | 4,84 | 4,84 | 4,79 | ||
| 6.5 | 5,9 | 5,9 | 5,82 | ||
| 8 | 7,05 | 7,05 | 6,92 | 11,8 | |
| 10 | 8,59 | 8,59 | 8,47 | ||
| 12 | 10,4 | 10,4 | 10,24 | 5,02 | |
| 14 | 12,3 | 12,3 | 12,15 | 18,51 | 5,94 |
| 16 | 14,2 | 14,2 | 14,01 | 21,95 | 7,1 |
| 18 | 16,3 | 16,3 | 16,01 | 25,7 | 8,49 |
| 20 | 18,4 | 18,4 | 18,07 | 28,83 | 10,12 |
| 22 | 21 | 21 | 20,69 | 11,86 | |
| 24 | 24 | 24 | 23,69 | 44,46 | 13,66 |
| 27 | 27,7 | 27,7 | 27,37 | 16,3 | |
| 30 | 31,8 | 31,8 | 31,35 | 43,88 | 19,07 |
The linear weight of channels should not exceed 6%
. Such regulations are prescribed in a state document. Taking into account the tolerances for maximum deviations in total, the weight of a meter of channel should not exceed 7-8%. If violations are noticed in the production regulations, then the metal profiles are considered unsuitable.
Where to buy channel products?
sells rolled metal throughout Russia. Thanks to many years of contractual relations with the largest manufacturing plants of metal standard sizes, steel angles, and beams, it was possible to achieve a price list with minimal prices. Regular customers buy rolled metal at a special price, on individual terms.
Hot rolled channel 12: range, characteristics
In the production of this type of shaped steel, the following are used:
- carbon steel of ordinary quality (st3 sp/ps) - for structures operated under moderate loads and normal weather conditions;
- low-alloy steel (09G2S) – for metal structures intended for operation at low temperatures and increased loads.
The dimensions of hot-rolled channel are regulated by GOST 8240-97, in accordance with which a profile is produced with the internal edges of the shelves located at a slope of 4-10%, and with parallel internal edges of the shelves of the “P”, “E”, “L” series. The range of slope angles of the internal edges can be tightened at the customer's request.
Table of dimensions and weight of channel 12
| Channel type 12 | Wall height, cm | Shelf width, mm | Wall thickness, mm | Shelf thickness, mm | Weight of 1 m channel 12, kg |
| With a slope of the inner edges of the shelves (U) | 12 | 52 | 4,8 | 7,8 | 10,4 |
| With parallel inner edges of shelves (P) | 12 | 52 | 4,8 | 7,8 | 10,4 |
| Economical, with parallel shelf edges (E) | 12 | 52 | 4,5 | 7,8 | 10,24 |
| Lightweight, with parallel edges of shelves (E) | 12 | 30 | 3,0 | 4,8 | 5,02 |
The profile products of the economy series have a thinner wall, the light series have a smaller width and thickness of the shelf, and wall thickness, compared to the products of the “P” series. The standard length of the rods supplied to the consumer is 2-12 linear meters; by agreement with the customer, it can be increased. When calculating how much a channel weighs, an average steel density of 7.85 kg/dm3 is used.
A hot-rolled channel with a wall height of 120 mm is capable of withstanding fairly high bending and deflection loads. This profile is used in load-bearing structures as the main load-bearing or additional reinforcing element. Areas of its application: frame construction, production of frames for finishing materials (installation of ventilated facades), strengthening of foundations, installation of fences and stairs, production of non-standard production equipment, mechanical engineering.
Channel according to GOST 8240-97
Channel according to GOST 8240-97 – stroyone
Channel (U series) with flange slope
The main parameters (characteristics) of a hot-rolled channel according to GOST 8240-97 with a slope of the internal edges of the flanges are determined by its number, which varies from No. 5 to No. 40. For example, if the channel number is No. 5, its height will correspond to (h) - 50 mm.
Channel U series according to GOST 8240-97
| № | Description |
| 1 | Profile height varies from 50 to 400 (mm) |
| 2 | Shelf width varies from 32 to 115 (mm) |
| 3 | Wall thickness varies from 4.4 to 8 (mm) |
| 4 | Shelf thickness varies from 7 to 13.5 (mm) |
| 5 | Radius varies from 6 to 15 (mm) |
| 6 | Radius varies from 2.5 to 6 (mm) |
| 7 | Cross-sectional area varies from 6.16 to 61.5 (cm²) |
| 8 | Nominal weight of 1 m I-beam, kg varies from 4.84 to 48.3 (kg/m) |
| 9 | Number of running meters per ton varies from 20.704 to 206.612 (p.m/t) |
| 10 | Moment of inertia varies from 22.8 to 15220 (cm⁴) |
| 11 | Moment of resistance varies from 9.1 to 761 (cm³) |
| 12 | Radius of gyration varies from 1.92 to 12 (mm) |
| 13 | Static torque varies from 5.59 to 444 (cm³) |
| 14 | Moment of inertia varies from 5.61 to 327 (cm⁴) |
| 15 | Moment of resistance varies from 2.75 to 43.6 (cm³) |
| 16 | Radius of gyration varies from 1.08 to 3.23 (mm) |
| 17 | The distance to the center of gravity varies from 1.16 to 2.75 (cm) |
Main dimensions of the channel, (U series) with flange slope
| № | Channel no. | h (mm) | B (mm) | S (mm) wall | t (mm) shelf | M (kg/m) | Quantity (m) per ton |
| 1 | Channel 5U | 50 | 32 | 4,4 | 7 | 4,84 | 206,612 |
| 2 | Channel 6.5U | 65 | 36 | 4,4 | 7,2 | 5,9 | 169,492 |
| 3 | Channel 8U | 80 | 40 | 4,5 | 7,4 | 7,05 | 141,844 |
| 4 | Channel 10U | 100 | 46 | 4,5 | 7,6 | 8,59 | 116,414 |
| 5 | Channel 12U | 120 | 52 | 4,8 | 7,8 | 10,4 | 96,154 |
| 6 | Channel 14U | 140 | 58 | 4,9 | 8,1 | 12,3 | 81,301 |
| 7 | Channel 16U | 160 | 64 | 5 | 8,4 | 14,2 | 70,423 |
| 8 | Channel 16аУ | 160 | 68 | 5 | 9 | 15,3 | 65,359 |
| 9 | Channel 18U | 180 | 70 | 5,1 | 8,7 | 16,3 | 61,35 |
| 10 | Channel 18аУ | 180 | 74 | 5,1 | 9,3 | 17,4 | 57,471 |
| 11 | Channel 20U | 200 | 76 | 5,2 | 9 | 18,4 | 54,348 |
| 12 | Channel 22U | 220 | 82 | 5,4 | 9,5 | 21 | 47,619 |
| 13 | Channel 24U | 240 | 90 | 5,6 | 10 | 24 | 41,667 |
| 14 | Channel 27U | 270 | 95 | 6 | 10,5 | 27,7 | 36,101 |
| 15 | Channel 30U | 300 | 100 | 6,5 | 11 | 31,8 | 31,447 |
| 16 | Channel 33U | 330 | 105 | 7 | 11,7 | 36,5 | 27,397 |
| 17 | Channel 36U | 360 | 110 | 7,5 | 12,6 | 41,9 | 23,866 |
| 18 | Channel 40U | 400 | 115 | 8 | 13,5 | 48,3 | 20,704 |
Channel with parallel flanges
The main parameters (characteristics) of a hot-rolled channel according to GOST 8240-97 with parallel flange edges are determined by its number, which varies from No. 5 to No. 40. For example, with channel number No. 40, its height will correspond to (h) - 400 mm.
Channel P series with parallel shelves according to GOST 8240-97
| № | Description |
| 1 | Profile height varies from 50 to 400 (mm) |
| 2 | Profile width varies from 32 to 115 (mm) |
| 3 | Wall thickness varies from 4.5 to 8 (mm) |
| 4 | Shelf thickness varies from 7 to 13.5 (mm) |
| 5 | Radius varies from 6 to 14 (mm) |
| 6 | Radius varies from 3.5 to 9 (mm) |
| 7 | Cross-sectional area varies from 6.16 to 61.5 (cm²) |
| 8 | Nominal weight of 1 m I-beam, kg varies from 4.84 to 48.3 (kg/m) |
| 9 | Number of running meters per ton varies from 0.023 to 206.612 (p.m/t) |
| 10 | Moment of inertia varies from 22.8 to 15260 (cm⁴) |
| 11 | Moment of resistance varies from 9.1 to 763 (cm³) |
| 12 | Radius of gyration varies from 1.92 to 15.8 (mm) |
| 13 | Static torque varies from 5.61 to 445 (cm³) |
| 14 | Moment of inertia varies from 5.95 to 611 (cm⁴) |
| 15 | Moment of resistance varies from 2.99 to 89.9 (cm³) |
| 16 | Radius of gyration varies from 0.98 to 3.51 (mm) |
| 17 | The distance to the center of gravity varies from 1.21 to 3.05 (cm) |
Main dimensions of the channel, (P series) with parallel flanges
| № | Channel no. | h (mm) | B (mm) | S (mm) wall | t (mm) shelf | M (kg/m) | Quantity (m) per ton |
| 1 | Channel 5P | 50 | 32 | 4.4 | 7 | 6,16 | 4,84 |
| 2 | Channel 6.5P | 65 | 36 | 4.4 | 7.2 | 7,51 | 5,9 |
| 3 | Channel 8P | 80 | 40 | 4,5 | 7,4 | 8,98 | 7.05 |
| 4 | Channel 10P | 100 | 46 | 4,5 | 7,6 | 10,9 | 8,59 |
| 5 | Channel 12P | 120 | 52 | 4,8 | 7,8 | 13,3 | 10,4 |
| 6 | Channel 14P | 140 | 58 | 4,9 | 8,1 | 15,6 | 12,3 |
| 7 | Channel 16P | 160 | 64 | 5.0 | 8.4 | 18,1 | 14,2 |
| 8 | Channel 16aP | 160 | 68 | 5 | 9 | 19.50 | 15,3 |
| 9 | Channel 18P | 180 | 70 | 5,1 | 8,7 | 20,7 | 16,3 |
| 10 | Channel 18aP | 180 | 74 | 5,1 | 9,3 | 22,2 | 17,4 |
| 11 | Channel 20P | 200 | 76 | 5.2 | 9.0 | 23,4 | 18,4 |
| 12 | Channel 22P | 220 | 82 | 5.4 | 9.5 | 26,7 | 21 |
| 13 | Channel 24P | 240 | 90 | 5.6 | 10 | 30,6 | 24 |
| 14 | Channel 27P | 270 | 95 | 6 | 10,5 | 35,2 | 27,7 |
| 15 | Channel 30P | 300 | 100 | 6,5 | 11 | 40,5 | 31,8 |
| 16 | Channel 33P | 330 | 105 | 7 | 11,7 | 46,5 | 36,5 |
| 17 | Channel 36P | 360 | BY | 7.5 | 12,6 | 53,4 | 41,9 |
| 18 | Channel 40P | 400 | 115 | 8 | 13,5 | 61,5 | 48,3 |
Economical channel with parallel flange edges
The main parameters (characteristics) of an economical hot-rolled channel with parallel flanges in accordance with GOST 8240-97 are determined by its number, which varies from No. 5 to No. 40. For example, if the channel number is No. 5, its height will correspond to (h) - 50 mm.
Channel E series with parallel shelves according to GOST 8240-97
| № | Description |
| 1 | Profile height varies from 50 to 400 (mm) |
| 2 | Profile width varies from 32 to 115 (mm) |
| 3 | Wall thickness varies from 4.2 to 7.4 (mm) |
| 4 | Shelf thickness varies from 7 to 13.5 (mm) |
| 5 | Radius varies from 6.5 to 15.5 (mm) |
| 6 | Radius varies from 2.5 to 6 (mm) |
| 7 | Cross-sectional area varies from 6.1 to 61.11 (cm²) |
| 8 | Nominal weight of 1 m I-beam, kg varies from 4.79 to 47.97 (kg/m) |
| 9 | Number of running meters per ton varies from 20.846 to 208.768 (p.m/t) |
| 10 | Moment of inertia varies from 22.9 to 15307.9 (cm⁴) |
| 11 | Moment of resistance varies from 9.17 to 603.58 (cm³) |
| 12 | Radius of gyration varies from 1.94 to 15.83 (mm) |
| 13 | Static torque varies from 5.62 to 445.41 (cm³) |
| 14 | Moment of inertia varies from 6.02 to 618.92 (cm⁴) |
| 15 | Moment of resistance varies from 3.05 to 91.8 (cm³) |
| 16 | Radius of gyration varies from 0.993 to 3.42 (mm) |
| 17 | The distance to the center of gravity varies from 1.23 to 3.04 (cm) |
Main dimensions of economical channel (E series) with parallel flanges
| № | Channel no. | h (mm) | B (mm) | S (mm) wall | t (mm) shelf | M (kg/m) | Quantity (m) per ton |
| 1 | Channel 5E | 50 | 32 | 4,2 | 7 | 4,79 | 208,768 |
| 2 | Channel 6.5E | 65 | 36 | 4,2 | 7,2 | 5,82 | 171,821 |
| 3 | Channel 8E | 80 | 40 | 4,2 | 7,4 | 6,92 | 144,509 |
| 4 | Channel 10E | 100 | 46 | 4,2 | 7.6 | 8,47 | 118,064 |
| 5 | Channel 12E | 120 | 52 | 4,5 | 7.8 | 10,24 | 97,656 |
| 6 | Channel 14E | 140 | 58 | 4.6 | 8.1 | 12,15 | 82,305 |
| 7 | Channel 16E | 160 | 64 | 4,7 | 8,4 | 14,01 | 71,378 |
| 8 | Channel 18E | 180 | 70 | 4,8 | 8,7 | 16,01 | 62,461 |
| 9 | Channel 20E | 200 | 76 | 4,9 | 9 | 18,07 | 55,34 |
| 10 | Channel 22E | 220 | 82 | 5,1 | 9.5 | 20,69 | 48,333 |
| 11 | Channel 24E | 240 | 90 | 5.3 | !0,0 | 23,69 | 42,212 |
| 12 | Channel 27E | 270 | 95 | 5,8 | 10,5 | 27,37 | 36,536 |
| 13 | Channel 30E | 300 | 100 | 6,3 | 11 | 31,35 | 31,898 |
| 14 | Channel 33E | 330 | 105 | 6,9 | 11,7 | 36,14 | 27,67 |
| 15 | Channel 36E | 360 | 110 | 7,4 | 12,6 | 41,53 | 24,079 |
| 16 | Channel 40E | 400 | 115 | 7.9 | 13,5 | 47,97 | 20,846 |
Light channel with parallel flange edges, L series (light)
The main parameters (characteristics) of a light hot-rolled channel according to GOST 8240-97 with parallel flange edges are determined by its number, which varies from No. 12 to No. 30. For example, with channel number No. 30, its height will correspond to (h) - 300 mm.
Channel L series (lightweight) with parallel shelves according to GOST 8240-97
| № | Description |
| 1 | Profile height varies from 120 to 300 (mm) |
| 2 | Profile width varies from 30 to 65 (mm) |
| 3 | Wall thickness varies from 3 to 4.8 (mm) |
| 4 | Shelf thickness varies from 4.8 to 7.8 (mm) |
| 5 | Radius varies from 7 to 11 (mm) |
| 6 | Cross-sectional area varies from 6.39 to 24.3 (cm²) |
| 7 | Nominal weight of 1 m I-beam, kg varies from 5.94 to 19.07 (kg/m) |
| 8 | Number of running meters per ton varies from 0.023 to 168.35 (p.m/t) |
| 9 | Moment of inertia varies from 212.94 to 3186.74 (cm⁴) |
| 10 | Moment of resistance varies from 22.54 to 212.45 (cm³) |
| 11 | Radius of gyration varies from 4.6 to 11.45 (mm) |
| 12 | Static moment varies from 13.43 to 126.24 (cm³) |
| 13 | Moment of inertia varies from 5.02 to 89.08 (cm⁴) |
| 14 | Moment of resistance varies from 2.24 to 17.84 (cm³) |
| 15 | Radius of gyration varies from 0.89 to 1.91 (mm) |
| 16 | The distance to the center of gravity varies from 0.7 to 1.5 (cm) |
Main dimensions of a light channel (L series) with parallel flanges
| № | Channel no. | h (mm) | B (mm) | S (mm) wall | t (mm) shelf | M (kg/m) | Quantity (m) per ton |
| 1 | Channel 12L | 120 | 30 | 3 | 4,8 | 5.02 | 0,023 |
| 2 | Channel 14L | 140 | 32 | 3,2 | 5,6 | 5,94 | 168,35 |
| 3 | Channel 16L | 160 | 35 | 3,4 | 5,3 | 7,1 | 140,845 |
| 4 | Channel 18L | 180 | 40 | 3,6 | 5,6 | 8,49 | 117,786 |
| 5 | Channel 20L | 200 | 45 | 3,8 | 6 | 10,12 | 98,814 |
| 6 | Channel 22L | 220 | 50 | 4 | 6,4 | 11,86 | 84,317 |
| 7 | Channel 24L | 240 | 55 | 4,2 | 6,8 | 13,66 | 73,206 |
| 8 | Channel 27L | 270 | 60 | 4,5 | 7,3 | 16,3 | 61,35 |
| 9 | Channel 30L | 300 | 65 | 4,8 | 7,8 | 19,07 | 52,438 |
Special channel - series C
The main parameters (characteristics) of a special channel (series C) according to GOST 8240-97 hot-rolled with parallel flange edges are determined by its number, which varies from No. 8 to No. 30. For example, with channel number No. 30, its height will correspond to (h) - 300 mm.
Channel series C (special) according to GOST 8240-97
| № | Description |
| 1 | Profile height varies from 80 to 300 (mm) |
| 2 | Profile width varies from 45 to 100 (mm) |
| 3 | Wall thickness varies from 2.5 to 11.5 (mm) |
| 4 | Shelf thickness varies from 9 to 16 (mm) |
| 5 | Radius varies from 9 to 15 (mm) |
| 6 | Radius varies from 1.5 to 7.5 (mm) |
| 7 | The slope of the shelves varies from 6 to 10 (%) |
| 8 | Cross-sectional area varies from 11.8 to 50.6 (cm²) |
| 9 | Nominal weight of 1 m I-beam, kg varies from 9.26 to 43.86 (kg/m) |
| 10 | Number of running meters per ton varies from 22.8 to 107.991 (p.m/t) |
| 11 | Moment of inertia varies from 115.82 to 6945.43 (cm⁴) |
| 12 | Moment of resistance varies from 28.95 to 463.03 (cm³) |
| 13 | Radius of gyration varies from 3.13 to 11.74 (mm) |
| 14 | Moment of inertia varies from 53.2 to 1115.6 (cm⁴) |
| 15 | Moment of resistance varies from 7.63 to 171.6 (cm³) |
| 16 | Radius of gyration varies from 1.38 to 5.03 (mm) |
| 17 | Distance to center of gravity varies from 1.57 to 3.91 (cm) |
Main dimensions of special channel (series C)
| № | Channel no. | h (mm) | B (mm) | S (mm) wall | t (mm) shelf | M (kg/m) | Quantity (m) per ton |
| 1 | Channel 8C | 80 | 45 | 5,5 | 9 | 9,26 | 107,991 |
| 2 | Channel 14C | 140 | 58 | 6 | 9.5 | 14,53 | 68,823 |
| 3 | Channel 14Са | 140 | 60 | 8 | 9,5 | 16,72 | 59,809 |
| 4 | Channel 16C | 160 | 63 | 6,5 | 10 | 17,53 | 57,045 |
| 5 | Channel 16Са | 160 | 65 | 8,5 | 10 | 19,74 | 50,659 |
| 6 | Channel 18C | 180 | 68 | 7 | 10,5 | 20,2 | 49,505 |
| 7 | Channel 18Са | 180 | 70 | 9.0 | 10,5 | 23 | 43,478 |
| 8 | Channel 18S6 | 180 | 100 | 8 | 10,5 | 26,72 | 37,425 |
| 9 | Channel 20C | 200 | 73 | 7 | 11 | 22,63 | 44,189 |
| 10 | Channel 20Са | 200 | 75 | 9 | 11 | 25,77 | 38,805 |
| 11 | Channel 20S6 | 200 | 100 | 8 | 11 | 28,71 | 34,831 |
| 12 | Channel 24C | 240 | 85 | 9.5 | 14 | 34,9 | 28,653 |
| 13 | Channel 26C | 260 | 65 | 10 | 16 | 34,61 | 28,893 |
| 14 | Channel 26Са | 260 | 90 | 10 | 15 | 39,72 | 25,176 |
| 15 | Channel 30C | 300 | 85 | 2,5 | 13,5 | 34,44 | 29,036 |
| 16 | Channel 30Са | 300 | 87 | 9,5 | 13,5 | 39,15 | 25,543 |
| 17 | Channel 30Sb | 300 | 89 | 11,5 | 13,5 | 43,86 | 22,8 |
Bent channel 12: production features and characteristics
A bent channel has rounded external corners, the same thickness of the wall and flanges, and can be equal or unequal. The production of equal flange profiles is determined by GOST 8278-83, unequal flange profiles - by state standard 8281-80. Unequal-flanged steel has rather limited, highly specialized areas of application. Manufacturing accuracy – normal, increased, high.
Assortment table for equal flange bent channel 12
| Wall height, cm | Shelf width, mm | Wall thickness, mm | Cross-sectional surface area, cm2 | Weight 1 m, kg |
| 12 | 25 | 4 | 6,2 | 4,87 |
| 12 | 50 | 3 | 6,2 | 4,91 |
| 12 | 50 | 4 | 8,2 | 6,44 |
| 12 | 50 | 6 | 11,86 | 9,3 |
| 12 | 60 | 4 | 9,0 | 7,07 |
| 12 | 60 | 5 | 11,09 | 8,71 |
| 12 | 60 | 6 | 13,06 | 10,25 |
| 12 | 70 | 5 | 12,09 | 9,49 |
| 12 | 80 | 4 | 10, | 8,32 |
| 12 | 80 | 5 | 13,09 | 10,28 |
Bent metal profiles are produced on profile bending mills from hot and cold rolled strip blanks. During the bending process, some surface defects are corrected. In the production of bent channels, in addition to ordinary quality, high-quality structural and low-alloy carbon steels, galvanized blanks and strips of corrosion-resistant steel are used. Galvanized profiles are used in conditions of high humidity, while stainless steel profiles are used in enterprises that have high requirements for corrosion resistance, hygienic and aesthetic characteristics.
In addition to steel of various grades, aluminum and copper, as well as alloys based on them, are used to produce U-shaped rolled sections. Products made from aluminum alloys are used in structures for which a combination of low specific gravity, corrosion resistance and good strength is important.
Channel made of carbon boiling and semi-quiet steel according to GOST 8278-83
As mentioned above, a much more accessible way for the wide mass of manufacturers to produce a channel is to bend it from rolled strip on sheet bending and roll forming rolling mills. Therefore, there are many more manufacturers of this kind of channels.
Cross section of bent steel equal-flange profile according to GOST 8278-83
Other characteristics of the channel of the selected profile, such as the weight of 1 linear meter of the profile, are presented in the tables.
Channel dimensions, cross-sectional area, weight of carbon boiling and semi-quiet steel GOST 8278-83
Table of channel sizes, cross-sectional area, weight of carbon boiling and semi-quiet steel GOST 8278-83.xlsx
| Size (hxb) | Weight 1 m per kg | s | R | n | n1 | Sectional area, cm sq. | |
| channel | 25 x 26 | 1,09 | 2 | 3 | 10,5 | 7,5 | 1,39 |
| channel | 25 x 30 | 1,22 | 2 | 3 | 12,5 | 7,5 | 1,55 |
| channel | 28 x 27 | 1,42 | 2,5 | 4 | 8,2 | 6,0 | 1,81 |
| channel | 30 x 25 | 1,61 | 3 | 5 | 5,7 | 4,7 | 2,05 |
| channel | 30 x 30 | 1,30 | 2 | 3 | 12,5 | 10,0 | 1,65 |
| channel | 32 x 25 | 1,66 | 3 | 5 | 5,7 | 5,3 | 2,11 |
| channel | 32 x 32 | 1,39 | 2 | 3 | 13,5 | 11,0 | 1,77 |
| channel | 38 x 95 | 4,30 | 2,5 | 3 | 35,8 | 10,8 | 5,48 |
| channel | 40 x 20 | 1,14 | 2 | 3 | 7,5 | 15,0 | 1,45 |
| channel | 40 x 20 | 1,61 | 3 | 5 | 4,0 | 8,0 | 2,05 |
| channel | 40 x 30 | 1,45 | 2 | 3 | 12,5 | 15,0 | 1,85 |
| channel | 40 x 30 | 1,79 | 2,5 | 3 | 9,8 | 11,6 | 2,28 |
| channel | 40 x 40 | 1,77 | 2 | 3 | 17,5 | 15,0 | 2,25 |
| channel | 40 x 40 | 2,18 | 2,5 | 3 | 13,8 | 11,6 | 2,78 |
| channel | 40 x 40 | 2,55 | 3 | 5 | 10,7 | 8,0 | 3,25 |
| channel | 42 x 42 | 3,49 | 4 | 6 | 8,0 | 5,5 | 4,45 |
| channel | 43 x 45 | 1,97 | 2 | 3 | 20,0 | 16,5 | 2,51 |
| channel | 45 x 25 | 1,96 | 3 | 5 | 5,7 | 9,7 | 2,50 |
| channel | 45 x 31 | 1,56 | 2 | 3 | 13,0 | 17,5 | 1,99 |
| channel | 48 x 70 | 6,67 | 5 | 7 | 11,6 | 4,8 | 8,49 |
| channel | 50 x 30 | 1,61 | 2 | 3 | 12,5 | 20,0 | 2,05 |
| channel | 50 x 30 | 1,99 | 2,5 | 3 | 9,8 | 15,6 | 2,53 |
| channel | 50 x 32 | 2,07 | 2,5 | 3 | 10,6 | 15,6 | 2,63 |
| channel | 50 x 40 | 1,92 | 2 | 3 | 17,5 | 20,0 | 2,45 |
| channel | 50 x 40 | 2,38 | 2,5 | 3 | 13,8 | 15,6 | 3,03 |
| channel | 50 x 40 | 2,81 | 3 | 4 | 11,0 | 12,0 | 3,58 |
| channel | 50 x 40 | 3,62 | 4 | 6 | 7,5 | 7,5 | 4,61 |
| channel | 50 x 47 | 5,73 | 6 | 9 | 5,3 | 3,3 | 7,30 |
| channel | 50 x 50 | 2,77 | 2,5 | 3 | 17,8 | 15,6 | 3,53 |
| channel | 50 x 50 | 3,28 | 3 | 4 | 14,3 | 12,0 | 4,18 |
| channel | 50 x 50 | 4,24 | 4 | 6 | 10,0 | 7,5 | 5,40 |
| channel | 60 x 26 | 2,01 | 2,5 | 4 | 7,8 | 18,8 | 2,56 |
| channel | 60 x 30 | 2,19 | 2,5 | 3 | 9,8 | 19,6 | 2,78 |
| channel | 60 x 30 | 2,55 | 3 | 5 | 7,3 | 14,7 | 3,25 |
| channel | 60 x 32 | 2,26 | 2,5 | 3 | 10,6 | 19,6 | 2,89 |
| channel | 60 x 32 | 2,67 | 3 | 4 | 8,3 | 15,3 | 3,40 |
| channel | 60 x 32 | 3,43 | 4 | 6 | 5,5 | 10,0 | 4,37 |
| channel | 60 x 40 | 2,08 | 2 | 3 | 17,5 | 25,0 | 2,65 |
| channel | 60 x 40 | 3,04 | 3 | 4 | 11,0 | 15,3 | 3,88 |
| channel | 60 x 50 | 3,50 | 3 | 5 | 14,0 | 14,7 | 4,45 |
| channel | 60 x 60 | 3,99 | 3 | 4 | 17,7 | 15,3 | 5,08 |
| channel | 60 x 60 | 5,18 | 4 | 6 | 12,5 | 10,0 | 6,60 |
| channel | 60 x 80 | 4,91 | 3 | 5 | 24,0 | 14,7 | 6,25 |
| channel | 60 x 90 | 8,71 | 5 | 7 | 15,6 | 7,2 | 11,09 |
| channel | 63 x 21 | 1,68 | 2,2 | 3 | 7,2 | 23,9 | 2,14 |
| channel | 65 x 75 | 6,28 | 4 | 6 | 16,2 | 11,2 | 8,00 |
| channel | 68 x 27 | 0,93 | 1 | 2 | 24,0 | 62,0 | 1,18 |
| channel | 70 x 30 | 1,92 | 2 | 3 | 12,5 | 30,0 | 2,45 |
| channel | 70 x 40 | 3,26 | 3 | 5 | 10,7 | 18,0 | 4,15 |
| channel | 70 x 50 | 3,73 | 3 | 5 | 14,0 | 18,0 | 4,75 |
| channel | 70 x 50 | 4,87 | 4 | 6 | 10,0 | 12,5 | 6,21 |
| channel | 70 x 60 | 5,50 | 4 | 6 | 12,5 | 12,5 | 7,00 |
| channel | 78 x 46 | 6,96 | 6 | 9 | 5,16 | 8,0 | 8,86 |
| channel | 80 x 25 | 3,61 | 4 | 6 | 37,5 | 15,0 | 4,61 |
| channel | 80 x 32 | 4,05 | 4 | 6 | 5,5 | 15,0 | 5,16 |
| channel | 80 x 35 | 4,24 | 4 | 6 | 6,25 | 15,0 | 5,41 |
| channel | 80 x 40 | 2,97 | 2,5 | 3 | 13,8 | 27,6 | 3,78 |
| channel | 80 x 40 | 3,51 | 3 | 4 | 11,0 | 22,0 | 4,48 |
| channel | 80 x 50 | 5,18 | 4 | 6 | 10,0 | 15,0 | 6,60 |
| channel | 80 x 60 | 4,46 | 3 | 4 | 17,7 | 22,0 | 5,68 |
| channel | 80 x 60 | 5,81 | 4 | 6 | 12,5 | 15,0 | 7,40 |
| channel | 80 x 60 | 8,37 | 6 | 9 | 7,5 | 8,33 | 10,66 |
| channel | 80 x 80 | 5,40 | 3 | 4 | 24,3 | 22,0 | 6,88 |
| channel | 80 x 80 | 7,07 | 4 | 6 | 17,5 | 15,0 | 9,0 |
| channel | 80 x 85 | 7,38 | 4 | 6 | 18,8 | 15,0 | 9,41 |
| channel | 80 x 100 | 12,14 | 6 | 9 | 14,2 | 8,33 | 15,46 |
| channel | 90 x 50 | 4,87 | 3,5 | 5 | 11,9 | 20,9 | 6,20 |
| channel | 90 x 54 | 7,06 | 5 | 7 | 8,4 | 13,2 | 8,99 |
| channel | 90 x 100 | 5,50 | 2,5 | 4 | 37,4 | 30,8 | 7,01 |
| channel | 100 x 40 | 3,36 | 2,5 | 3 | 13,8 | 35,6 | 4,28 |
| channel | 100 x 40 | 3,97 | 3 | 5 | 10,7 | 28,0 | 5,05 |
| channel | 100 x 50 | 4,47 | 3 | 4 | 14,3 | 28,7 | 5,68 |
| channel | 100 x 50 | 5,81 | 4 | 6 | 10,0 | 20,0 | 7,40 |
| channel | 100 x 50 | 7,14 | 5 | 7 | 7,6 | 15,2 | 9,09 |
| channel | 100 x 50 | 8,37 | 6 | 9 | 5,8 | 11,7 | 10,66 |
| channel | 100 x 60 | 4,93 | 3 | 4 | 17,7 | 28,7 | 6,28 |
| channel | 100 x 60 | 6,44 | 4 | 6 | 12,5 | 20,0 | 8,20 |
| channel | 100 x 80 | 5,87 | 3 | 4 | 24,3 | 28,7 | 7,48 |
| channel | 100 x 80 | 7,70 | 4 | 6 | 17,5 | 20,0 | 9,80 |
| channel | 100 x 80 | 9,49 | 5 | 7 | 13,6 | 15,2 | 12,09 |
| channel | 100 x 100 | 6,79 | 3 | 5 | 31,7 | 28,0 | 8,65 |
| channel | 100 x 100 | 13,08 | 6 | 9 | 14,2 | 11,7 | 16,66 |
| channel | 100 x 160 | 12,72 | 4 | 6 | 37,5 | 20,0 | 16,20 |
| channel | 104 x 20 | 1,14 | 2 | 3 | 7,5 | 47,0 | 2,73 |
| channel | 106 x 50 | 6,00 | 4 | 6 | 10,0 | 21,5 | 7,64 |
| channel | 108 x 70 | 10,63 | 6 | 9 | 9,2 | 13,0 | 13,54 |
| channel | 110 x 26 | 3,01 | 2,5 | 3 | 8,2 | 39,6 | 3,83 |
| channel | 110 x 50 | 6,13 | 4 | 6 | 10,0 | 22,5 | 7,80 |
| channel | 110 x 50 | 7,53 | 5 | 7 | 7,6 | 17,2 | 9,59 |
| channel | 110 x 100 | 9,27 | 4 | 6 | 22,5 | 22,5 | 11,81 |
| channel | 120 x 25 | 4,87 | 4 | 6 | 3,75 | 25,0 | 6,20 |
| channel | 120 x 50 | 4,91 | 3 | 5 | 14,0 | 34,7 | 6,25 |
| channel | 120 x 50 | 6,44 | 4 | 6 | 10,0 | 5,0 | 8,20 |
| channel | 120 x 50 | 9,31 | 6 | 9 | 5,8 | 15,0 | 11,86 |
| channel | 120 x 60 | 7,07 | 4 | 6 | 12,5 | 25,0 | 9,00 |
| channel | 120 x 60 | 8,71 | 5 | 7 | 9,6 | 19,2 | 11,09 |
| channel | 120 x 60 | 10,25 | 6 | 9 | 7,5 | 15,0 | 13,06 |
| channel | 120 x 70 | 9,49 | 5 | 7 | 11,6 | 19,2 | 12,09 |
| channel | 120 x 80 | 8,32 | 4 | 6 | 17,5 | 25,0 | 10,60 |
| channel | 120 x 80 | 10,28 | 5 | 7 | 13,6 | 19,2 | 13,09 |
| channel | 140 x 40 | 4,15 | 2,5 | 3 | 13,8 | 51,6 | 5,28 |
| channel | 140 x 40 | 4,91 | 3 | 5 | 10,7 | 41,3 | 6,25 |
| channel | 140 x 60 | 5,85 | 3 | 5 | 17,3 | 41,3 | 7,45 |
| channel | 140 x 60 | 9,49 | 5 | 7 | 9,6 | 23,2 | 12,09 |
| channel | 140 x 60 | 11,20 | 6 | 9 | 7,5 | 18,3 | 14,26 |
| channel | 140 x 70 | 10,28 | 5 | 7 | 11,6 | 23,2 | 13,09 |
| channel | 140 x 80 | 8,95 | 4 | 6 | 17,5 | 30,0 | 11,40 |
| channel | 140 x 80 | 11,06 | 5 | 7 | 13,6 | 23,2 | 14,09 |
| channel | 145 x 65 | 6,20 | 3 | 5 | 19,0 | 43,0 | 7,90 |
| channel | 148 x 25 | 5,75 | 4 | 6 | 3,75 | 32,0 | 7,32 |
| channel | 160 x 40 | 3,65 | 2 | 3 | 17,5 | 75,0 | 4,65 |
| channel | 160 x 40 | 5,38 | 3 | 5 | 10,7 | 48,0 | 6,85 |
| channel | 160 x 40 | 8,71 | 5 | 7 | 5,6 | 27,2 | 11,09 |
| channel | 160 x 50 | 4,92 | 2,5 | 4 | 17,4 | 58,8 | 6,26 |
| channel | 160 x 50 | 7,70 | 4 | 6 | 10,0 | 35,0 | 9,81 |
| channel | 160 x 50 | 9,49 | 5 | 7 | 7,6 | 27,2 | 12,09 |
| channel | 160 x 50 | 11,20 | 6 | 9 | 5,83 | 21,7 | 14,26 |
| channel | 160 x 60 | 5,31 | 2,5 | 4 | 21,4 | 58,8 | 6,76 |
| channel | 160 x 60 | 6,32 | 3 | 5 | 17,3 | 48,0 | 8,05 |
| channel | 160 x 60 | 8,32 | 4 | 6 | 12,5 | 35,0 | 10,60 |
| channel | 160 x 60 | 10,28 | 5 | 7 | 9,6 | 27,2 | 13,09 |
| channel | 160 x 60 | 12,14 | 6 | 9 | 7,5 | 21,7 | 15,46 |
| channel | 160 x 70 | 8,95 | 4 | 6 | 15,0 | 35,0 | 11,40 |
| channel | 160 x 80 | 6,11 | 2,5 | 3 | 29,8 | 59,6 | 7,78 |
| channel | 160 x 80 | 7,26 | 3 | 5 | 24,0 | 48,0 | 9,25 |
| channel | 160 x 80 | 9,58 | 4 | 6 | 17,5 | 35,0 | 12,20 |
| channel | 160 x 80 | 11,85 | 5 | 7 | 13,6 | 27,2 | 15,09 |
| channel | 160 x 80 | 14,02 | 6 | 9 | 10,8 | 21,7 | 17,86 |
| channel | 160 x 100 | 8,28 | 3 | 5 | 30,7 | 48,0 | 10,45 |
| channel | 160 x 100 | 15,91 | 6 | 9 | 14,2 | 21,7 | 20,26 |
| channel | 160 x 120 | 14,99 | 5 | 7 | 21,6 | 27,2 | 19,09 |
| channel | 160 x 120 | 17,79 | 6 | 9 | 17,5 | 21,7 | 22,66 |
| channel | 160 x 160 | 21,56 | 6 | 9 | 24,2 | 21,7 | 27,46 |
| channel | 170 x 60 | 8,64 | 4 | 6 | 12,5 | 37,5 | 11,00 |
| channel | 170 x 70 | 11,45 | 5 | 7 | 11,6 | 29,2 | 14,59 |
| channel | 170 x 70 | 13,55 | 6 | 9 | 9,2 | 23,3 | 17,26 |
| channel | 180 x 40 | 5,85 | 3 | 5 | 10,7 | 54,7 | 7,45 |
| channel | 180 x 40 | 7,70 | 4 | 6 | 7,5 | 40,0 | 9,81 |
| channel | 180 x 50 | 8,32 | 4 | 6 | 10,0 | 40,0 | 10,60 |
| channel | 180 x 70 | 14,02 | 6 | 9 | 9,2 | 25,0 | 17,85 |
| channel | 180 x 80 | 10,21 | 4 | 6 | 17,5 | 40,0 | 13,0 |
| channel | 180 x 80 | 12,68 | 5 | 7 | 13,6 | 31,2 | 16,09 |
| channel | 180 x 80 | 14,96 | 6 | 9 | 10,8 | 25,0 | 19,08 |
| channel | 180 x 100 | 14,20 | 5 | 7 | 17,6 | 31,2 | 18,09 |
| channel | 180 x 100 | 16,84 | 6 | 9 | 14,2 | 25,0 | 21,46 |
| channel | 180 x 130 | 25,76 | 8 | 12 | 13,8 | 17,5 | 32,82 |
| channel | 185 x 100 | 8,79 | 3 | 5 | 30,7 | 56,3 | 11,20 |
| channel | 200 x 50 | 6,79 | 3 | 5 | 14,0 | 61,3 | 8,65 |
| channel | 200 x 50 | 8,95 | 4 | 6 | 10,0 | 45,0 | 11,41 |
| channel | 200 x 80 | 10,83 | 4 | 6 | 17,5 | 45,0 | 13,81 |
| channel | 200 x 80 | 13,42 | 5 | 7 | 13,6 | 35,2 | 17,09 |
| channel | 200 x 80 | 15,91 | 6 | 9 | 10,8 | 28,3 | 20,26 |
| channel | 200 x 100 | 9,15 | 3 | 5 | 30,7 | 61,3 | 11,65 |
| channel | 200 x 100 | 17,79 | 6 | 9 | 14,2 | 28,3 | 22,66 |
| channel | 200 x 180 | 25,33 | 6 | 9 | 27,5 | 28,3 | 32,26 |
| channel | 205 x 38 | 5,34 | 2,5 | 3 | 13,0 | 77,6 | 6,81 |
| channel | 206 x 75 | 15,72 | 6 | 9 | 10,0 | 29,3 | 20,02 |
| channel | 210 x 57 | 9,71 | 4 | 6 | 11,8 | 47,5 | 12,37 |
| channel | 250 x 35 | 7,26 | 3 | 5 | 9,0 | 78,0 | 9,25 |
| channel | 250 x 60 | 8,44 | 3 | 5 | 17,3 | 78,0 | 10,75 |
| channel | 250 x 60 | 11,15 | 4 | 6 | 12,5 | 57,5 | 14,21 |
| channel | 250 x 60 | 13,81 | 5 | 7 | 9,6 | 45,2 | 17,59 |
| channel | 250 x 60 | 16,38 | 6 | 9 | 7,5 | 36,7 | 20,86 |
| channel | 250 x 125 | 22,50 | 6 | 9 | 18,3 | 36,7 | 28,66 |
| channel | 270 x 100 | 24,42 | 7 | 10 | 11,7 | 33,7 | 31,11 |
| channel | 280 x 60 | 11,80 | 3,9 | 6 | 12,8 | 66,7 | 15,03 |
| channel | 280 x 140 | 21,27 | 5 | 7 | 25,6 | 51,2 | 27,09 |
| channel | 300 x 80 | 20,62 | 6 | 9 | 10,8 | 45,0 | 26,26 |
| channel | 300 x 100 | 29,53 | 8 | 12 | 10,0 | 32,5 | 37,62 |
| channel | 310 x 100 | 22,97 | 6 | 9 | 14,2 | 46,7 | 29,26 |
| channel | 380 x 65 | 22,97 | 6 | 9 | 8,3 | 58,3 | 29,26 |
| channel | 400 x 95 | 35,18 | 8 | 12 | 9,4 | 45,0 | 44,82 |
| channel | 410 x 65 | 24,38 | 6 | 9 | 8,3 | 63,3 | 31,06 |
Dimensions of channels, cross-sectional area, weight of carbon mild and low-alloy steel GOST 8278-83
Table of channel sizes, cross-sectional area, weight of carbon mild and low-alloy steel GOST 8278-83.
| Dimensions (hxb) | Weight of 1 meter in kg. | s | R | n | n1 | Sectional area, cm2 | |
| channel | 25 x 26 | 1,07 | 2 | 5 | 9,5 | 5,5 | 1,36 |
| channel | 25 x 30 | 1,19 | 2 | 5 | 11,5 | 5,5 | 1,52 |
| channel | 30 x 25 | 1,57 | 3 | 7 | 12,5 | 3,3 | 2,00 |
| channel | 30 x 30 | 1,27 | 2 | 5 | 11,5 | 8,0 | 1,62 |
| channel | 38 x 95 | 4,25 | 2,5 | 6 | 34,6 | 8,4 | 5,42 |
| channel | 40 x 20 | 1,11 | 2 | 5 | 6,5 | 13,0 | 1,42 |
| channel | 40 x 30 | 1,43 | 2 | 5 | 11,5 | 13,0 | 1,82 |
| channel | 40 x 30 | 1,74 | 2,5 | 6 | 8,6 | 9,2 | 2,22 |
| channel | 40 x 40 | 1,74 | 2 | 5 | 16,5 | 13,0 | 2,22 |
| channel | 40 x 40 | 2,13 | 2,5 | 6 | 12,6 | 9,2 | 2,72 |
| channel | 40 x 40 | 2,51 | 3 | 7 | 10,0 | 6,7 | 3,20 |
| channel | 48 x 70 | 6,50 | 5 | 12 | 10,6 | 2,8 | 8,28 |
| channel | 50 x 30 | 1,58 | 2 | 5 | 11,5 | 18,0 | 2,02 |
| channel | 50 x 30 | 1,94 | 2,5 | 6 | 8,6 | 13,2 | 2,47 |
| channel | 50 x 40 | 1,90 | 2 | 5 | 16,5 | 18,0 | 2,42 |
| channel | 50 x 40 | 2,33 | 2,5 | 6 | 12,6 | 13,2 | 2,97 |
| channel | 50 x 40 | 2,75 | 3 | 7 | 10,0 | 10,0 | 3,50 |
| channel | 50 x 50 | 2,72 | 2,5 | 6 | 16,6 | 13,2 | 3,47 |
| channel | 50 x 50 | 3,22 | 3 | 7 | 13,3 | 10,0 | 4,10 |
| channel | 50 x 50 | 4,13 | 4 | 10 | 9,0 | 5,5 | 5,27 |
| channel | 50 x 60 | 4,76 | 4 | 10 | 11,5 | 5,5 | 6,07 |
| channel | 60 x 30 | 2,13 | 2,5 | 6 | 8,6 | 17,2 | 2,72 |
| channel | 60 x 30 | 2,51 | 3 | 7 | 6,7 | 13,3 | 3,20 |
| channel | 60 x 32 | 2,21 | 2,5 | 6 | 9,4 | 17,2 | 2,82 |
| channel | 60 x 32 | 2,61 | 3 | 7 | 7,3 | 13,3 | 3,32 |
| channel | 60 x 40 | 2,05 | 2 | 5 | 16,5 | 23,0 | 2,62 |
| channel | 60 x 40 | 2,98 | 3 | 7 | 10,0 | 13,3 | 3,80 |
| channel | 60 x 50 | 3,45 | 3 | 7 | 13,3 | 13,3 | 4,40 |
| channel | 60 x 60 | 3,93 | 3 | 7 | 16,7 | 13,3 | 5,00 |
| channel | 60 x 60 | 5,08 | 4 | 10 | 11,5 | 8,0 | 6,47 |
| channel | 60 x 90 | 8,54 | 5 | 12 | 14,6 | 5,2 | 10,88 |
| channel | 65 x 40 | 3,98 | 4 | 10 | 6,5 | 9,2 | 5,07 |
| channel | 65 x 75 | 6,18 | 4 | 10 | 15,2 | 9,2 | 7,87 |
| channel | 70 x 40 | 3,22 | 3 | 7 | 10,0 | 16,7 | 4,10 |
| channel | 70 x 60 | 5,39 | 4 | 10 | 11,5 | 10,5 | 6,87 |
| channel | 70 x 65 | 5,70 | 4 | 10 | 12,7 | 10,5 | 7,27 |
| channel | 78 x 46 | 6,75 | 6 | 14 | 4,3 | 6,3 | 8,60 |
| channel | 80 x 32 | 3,95 | 4 | 10 | 4,5 | 13,0 | 5,03 |
| channel | 80 x 35 | 4,14 | 4 | 10 | 5,2 | 13,0 | 5,27 |
| channel | 80 x 40 | 2,92 | 2,5 | 6 | 12,6 | 25,2 | 3,72 |
| channel | 80 x 40 | 3,45 | 3 | 7 | 10,0 | 20,0 | 4,40 |
| channel | 80 x 50 | 5,08 | 4 | 10 | 9,0 | 13,0 | 6,47 |
| channel | 80 x 60 | 4,40 | 3 | 7 | 16,7 | 20,0 | 5,60 |
| channel | 80 x 60 | 5,70 | 4 | 10 | 11,5 | 13,0 | 7,27 |
| channel | 80 x 60 | 8,17 | 6 | 14 | 6,6 | 6,6 | 10,40 |
| channel | 80 x 80 | 5,34 | 3 | 7 | 23,3 | 20,0 | 6,81 |
| channel | 80 x 80 | 6,96 | 4 | 10 | 16,5 | 13,0 | 8,87 |
| channel | 80 x 85 | 7,28 | 4 | 10 | 17,8 | 13,0 | 9,27 |
| channel | 90 x 54 | 6,89 | 5 | 12 | 7,4 | 11,2 | 8,78 |
| channel | 90 x 115 | 11,68 | 5 | 12 | 19,6 | 11,2 | 14,88 |
| channel | 100 x 40 | 3,31 | 2,5 | 6 | 12,6 | 33,2 | 4,22 |
| channel | 100 x 40 | 3,93 | 3 | 7 | 10,0 | 26,7 | 5,00 |
| channel | 100 x 50 | 4,40 | 3 | 7 | 13,3 | 26,7 | 5,60 |
| channel | 100 x 50 | 5,70 | 4 | 10 | 9,0 | 18,0 | 7,27 |
| channel | 100 x 50 | 6,97 | 5 | 12 | 6,6 | 13,2 | 8,88 |
| channel | 100 x 50 | 9,21 | 7 | 18 | 3,5 | 7,1 | 11,73 |
| channel | 100 x 60 | 4,87 | 3 | 7 | 16,7 | 26,7 | 6,20 |
| channel | 100 x 60 | 6,33 | 4 | 10 | 11,5 | 18,0 | 8,07 |
| channel | 100 x 80 | 5,81 | 3 | 7 | 23,3 | 26,7 | 7,40 |
| channel | 100 x 80 | 7,69 | 4 | 10 | 16,5 | 18,0 | 9,67 |
| channel | 100 x 80 | 9,32 | 5 | 12 | 12,6 | 13,2 | 11,87 |
| channel | 100 x 120 | 19,06 | 8 | 20 | 11,5 | 5,5 | 24,27 |
| channel | 100 x 160 | 12,61 | 4 | 10 | 36,5 | 18,0 | 16,07 |
| channel | 110 x 26 | 2,96 | 2,5 | 6 | 7,0 | 37,2 | 3,77 |
| channel | 110 x 50 | 6,02 | 4 | 10 | 9,0 | 20,5 | 7,67 |
| channel | 110 x 50 | 7,36 | 5 | 12 | 6,6 | 15,2 | 9,38 |
| channel | 120 x 25 | 4,76 | 4 | 10 | 2,75 | 23,0 | 6,07 |
| channel | 120 x 50 | 4,87 | 3 | 7 | 13,3 | 33,3 | 6,20 |
| channel | 120 x 60 | 6,96 | 4 | 10 | 11,5 | 23,0 | 8,87 |
| channel | 120 x 60 | 8,54 | 5 | 12 | 8,6 | 17,2 | 10,88 |
| channel | 120 x 60 | 10,05 | 6 | 14 | 6,7 | 13,3 | 12,98 |
| channel | 120 x 75 | 7,90 | 4 | 10 | 15,2 | 23,0 | 10,07 |
| channel | 120 x 80 | 8,22 | 4 | 10 | 16,5 | 23,0 | 10,47 |
| channel | 120 x 80 | 10,11 | 5 | 12 | 12,6 | 17,2 | 12,88 |
| channel | 120 x 90 | 14,75 | 7 | 18 | 9,2 | 10,0 | 18,79 |
| channel | 120 x 105 | 18,43 | 8 | 20 | 9,6 | 8,0 | 23,47 |
| channel | 130 x 135 | 22,82 | 8 | 20 | 13,4 | 9,2 | 29,07 |
| channel | 140 x 40 | 4,10 | 2,5 | 6 | 12,6 | 49,2 | 5,22 |
| channel | 140 x 60 | 7,59 | 4 | 10 | 11,5 | 28,0 | 9,67 |
| channel | 140 x 60 | 9,32 | 5 | 12 | 8,6 | 21,2 | 11,88 |
| channel | 140 x 60 | 10,99 | 6 | 14 | 6,7 | 16,7 | 14,00 |
| channel | 140 x 70 | 10,11 | 5 | 12 | 10,6 | 21,2 | 12,88 |
| channel | 140 x 80 | 8,84 | 4 | 10 | 16,5 | 28,0 | 11,27 |
| channel | 140 x 80 | 10,89 | 5 | 12 | 12,6 | 21,2 | 13,88 |
| channel | 145 x 65 | 6,16 | 3 | 7 | 18,3 | 41,7 | 7,25 |
| channel | 145 x 75 | 10,70 | 5 | 12 | 11,6 | 22,2 | 13,63 |
| channel | 160 x 40 | 5,34 | 3 | 7 | 10,0 | 46,7 | 6,80 |
| channel | 160 x 40 | 9,32 | 5 | 12 | 4,6 | 25,2 | 11,88 |
| channel | 160 x 50 | 7,60 | 4 | 10 | 9,0 | 33,0 | 9,67 |
| channel | 160 x 50 | 9,32 | 5 | 12 | 6,6 | 25,2 | 11,88 |
| channel | 160 x 60 | 6,28 | 3 | 7 | 16,7 | 46,7 | 8,00 |
| channel | 160 x 60 | 8,22 | 4 | 10 | 11,5 | 33,0 | 10,47 |
| channel | 160 x 60 | 10,18 | 5 | 10 | 9,0 | 26,0 | 12,96 |
| channel | 160 x 60 | 11,93 | 6 | 14 | 6,7 | 20,0 | 15,20 |
| channel | 160 x 75 | 17,17 | 8 | 20 | 5,8 | 13,0 | 21,87 |
| channel | 160 x 80 | 6,06 | 2,5 | 6 | 28,6 | 57,2 | 7,72 |
| channel | 160 x 80 | 9,47 | 4 | 10 | 16,5 | 33,0 | 12,07 |
| channel | 160 x 80 | 11,68 | 5 | 12 | 12,6 | 26,0 | 14,88 |
| channel | 160 x 120 | 17,59 | 6 | 14 | 16,7 | 20,0 | 22,40 |
| channel | 160 x 160 | 21,36 | 6 | 14 | 23,3 | 20,0 | 27,20 |
| channel | 170 x 70 | 11,29 | 5 | 12 | 10,6 | 27,2 | 14,38 |
| channel | 170 x 70 | 13,35 | 6 | 14 | 8,3 | 21,7 | 17,00 |
| channel | 180 x 50 | 8,22 | 4 | 10 | 7,0 | 38,0 | 10,47 |
| channel | 180 x 70 | 11,68 | 5 | 12 | 10,6 | 29,2 | 14,88 |
| channel | 180 x 70 | 13,82 | 6 | 14 | 8,3 | 23,3 | 17,60 |
| channel | 180 x 70 | 15,80 | 7 | 18 | 6,4 | 18,5 | 20,13 |
| channel | 180 x 80 | 10,10 | 4 | 10 | 16,5 | 38,0 | 12,87 |
| channel | 180 x 80 | 12,46 | 5 | 12 | 12,6 | 29,2 | 15,88 |
| channel | 180 x 80 | 14,76 | 6 | 14 | 10,0 | 23,3 | 18,80 |
| channel | 180 x 80 | 19,05 | 8 | 20 | 6,5 | 15,5 | 24,27 |
| channel | 180 x 100 | 14,03 | 5 | 12 | 16,6 | 29,2 | 17,88 |
| channel | 180 x 100 | 16,64 | 6 | 14 | 13,3 | 23,3 | 21,20 |
| channel | 180 x 130 | 25,33 | 8 | 20 | 12,7 | 15,5 | 32,27 |
| channel | 200 x 60 | 9,47 | 4 | 10 | 11,5 | 43,0 | 12,07 |
| channel | 200 x 80 | 10,75 | 4 | 10 | 16,5 | 43,0 | 13,67 |
| channel | 200 x 80 | 13,25 | 5 | 12 | 12,6 | 33,2 | 16,88 |
| channel | 200 x 80 | 15,70 | 6 | 14 | 10,0 | 26,7 | 20,00 |
| channel | 200 x 100 | 14,82 | 5 | 12 | 16,6 | 33,2 | 18,88 |
| channel | 200 x 100 | 17,59 | 6 | 14 | 13,3 | 16,7 | 22,40 |
| channel | 200 x 160 | 30,36 | 8 | 20 | 16,5 | 18,0 | 38,67 |
| channel | 205 x 38 | 5,29 | 2,5 | 6 | 11,8 | 75,2 | 6,74 |
| channel | 206 x 75 | 15,52 | 6 | 14 | 9,2 | 27,7 | 19,76 |
| channel | 210 x 57 | 9,60 | 4 | 10 | 10,8 | 45,5 | 12,23 |
| channel | 250 x 25 | 5,75 | 3 | 7 | 6,0 | 76,7 | 8,60 |
| channel | 250 x 60 | 11,04 | 4 | 10 | 11,5 | 55,5 | 14,07 |
| channel | 250 x 60 | 13,64 | 5 | 12 | 8,6 | 43,2 | 17,38 |
| channel | 250 x 60 | 16,17 | 6 | 14 | 6,6 | 35,0 | 20,60 |
| channel | 250 x 90 | 24,71 | 8 | 20 | 7,8 | 24,3 | 31,47 |
| channel | 250 x 125 | 22,30 | 6 | 14 | 13,6 | 17,5 | 28,40 |
| channel | 270 x 100 | 24,04 | 7 | 18 | 10,7 | 31,43 | 30,63 |
| channel | 280 x 60 | 11,89 | 3,9 | 10 | 11,8 | 64,7 | 14,9 |
| channel | 280 x 60 | 17,58 | 6 | 14 | 6,6 | 35,0 | 22,40 |
| channel | 300 x 80 | 20,41 | 6 | 14 | 10,0 | 43,3 | 26,00 |
| channel | 310 x 100 | 22,77 | 6 | 14 | 13,3 | 45,0 | 29,00 |
Technical requirements for manufacturing - steel grades, strength and quality parameters
In addition to the above characteristics regulated by GOST 8240, for the design and subsequent construction of any channel structures, it is necessary to know its other parameters: the grade of steel from which it is made, strength (physical and mechanical) and other properties, including various indicators of workmanship. All this information should be sought in other GOSTs - technical specification standards.
In total, GOST 8240 hot-rolled products are subject to not one, but seven technical specification standards - one for each specific area of practical application and method of using these channels. And, of course, in each of these standards, all of the above-mentioned characteristics (strength, steel grade, etc.) are strictly defined and radically different from those regulated by the other six GOST technical conditions. Moreover, this becomes obvious even after simply reading the list of all technical specification standards for GOST 8240 channels (including profile No. 12). Here is the list of GOSTs:
- 535-2005 - this standard applies to steel products for general and specialized use, made from carbon steel of ordinary quality;
- 19281-2014 – applies to high-strength steel products, which are made from high-quality unalloyed and low-alloy steels and are used for assembly or construction of various structures;
- 27772-2015 – for rental, which is used for the construction or assembly of steel building and other structures, as well as used for many other purposes;
- R 52927-2015 and 5521-93 – for steel metal products used for the construction of ships, as well as a variety of marine and river structures and structures for various purposes and climatic conditions;
- R 55374-2012 and 6713-91 – for steel products intended for the construction of bridges and the assembly of their various structures.
