Channel — hot-rolled shaped steel with a box-shaped U-shaped section intended for steel structures, as well as structures with welded and other connections. Channels are manufactured with lengths from 2 to 12 m, by agreement between the consumer and the manufacturer - lengths over 12 m. The weight of the channel varies from 4.79-61.5 kg per linear meter.
The geometric characteristics of the channel section are determined by its number, which corresponds to the height of the channel wall (in centimeters). The channel is used in:
- Powerful rod structures Bridges
- Long span trusses
The geometric characteristics of the channel section are determined by its number, which corresponds to the height of the channel wall (in centimeters). The range includes channels with and without sloped internal edges of the shelves. The slope of the internal edges of the shelves makes design difficult.
The range also includes channels with parallel flange edges, the cross-section of which has the best design characteristics. Such channels are more constructive, since the parallel edges simplify bolting to the shelves.
If it is impossible to use a channel in building structures, you can resort to replacing the channel with an I-beam, or go to another analogue of the profile.
Channels are used in powerful rod structures (places, long-span trusses, etc.), as well as in columns, ties and roof purlins.
Channel
Features of this range of channels
Grouping information
Each table displays only part of the information: 10 lines, between which you can switch using the buttons located in the lower right corner of each table.
Data filtering
The assortment tables provide data filtering, which allows you to display only the necessary lines. To do this, just enter the unique value of the channel parameter into the search, after which the table will display only its values. It is recommended to enter values for moments of resistance or moment of inertia, since these values are unique parameters for each channel.
Adaptability of assortment
All assortment tables are adaptive and automatically adjust to any screen size. For mobile devices with a small screen width, horizontal scrolling is provided: under each table there is a special slider.
Marking
If you look at the range of channels, you can see that it includes metal profiles with a wide range of sizes. With such a variety of options offered, it is very difficult to choose exactly the brand of channel that will be optimally suited for solving a particular problem. Naturally, the manufacturers took this point into account. To designate their products, they use markings, which can be used to get a fairly complete picture of the characteristics and dimensions of the U-shaped profile.
Markings that comply with GOST 8240-97 include both digital and alphabetic designations. The first number in the designation is the main characteristic; it corresponds to the size of the channel, that is, the distance between its flanges. By the letter in the marking you can determine what type the channel is. These can be products in which the internal edges of the shelves are made with a slope or are parallel to each other (“U” and “P”, respectively), metal profiles of economical (“E”) or light (“L”) type, special purpose (“S” ).
If you need to know all the other dimensions of a channel of a certain brand from the assortment, then for this there is a special table in which they are indicated. The choice of a product of a certain brand is made depending on what kind of loads the structure for which it is planned to be used will be subjected to.
Hot-rolled steel channels with sloped internal flange faces in accordance with GOST 8240-97
This table presents the geometric characteristics of hot-rolled steel channels with inclined internal flange faces (U series)
| Channel number (U series) | h [mm] | b [mm] | s [mm] | t [mm] | R [mm] | r [mm] | A [cm2] | m [kg] | Ix [cm4] | Wx [cm3] | ix [cm] | Sx [cm3] | Iy [cm4] | Wy [cm3] | iy [cm] | X0 [cm] |
| 5U | 50 | 32 | 4,4 | 7,0 | 6,0 | 2,5 | 6,16 | 4,84 | 22,8 | 9,1 | 1,92 | 5,59 | 5,61 | 2,75 | 0,95 | 1,16 |
| 6.5U | 65 | 36 | 4,4 | 7,2 | 6,0 | 2,5 | 7,51 | 5,90 | 48,6 | 15,0 | 2,54 | 9,00 | 8,70 | 3,68 | 1,08 | 1,24 |
| 8U | 80 | 40 | 4,5 | 7,4 | 6,5 | 2,5 | 8,98 | 7,05 | 89,4 | 22,4 | 3,16 | 13,30 | 12,80 | 4,75 | 1,19 | 1,31 |
| 10U | 100 | 46 | 4,5 | 7,6 | 7,0 | 3,0 | 10,90 | 8,59 | 174,0 | 34,8 | 3,99 | 20,40 | 20,40 | 6,46 | 1,37 | 1,44 |
| 12U | 120 | 52 | 4,8 | 7,8 | 7,5 | 3,0 | 13,30 | 10,40 | 304,0 | 50,6 | 4,78 | 29,60 | 31,20 | 8,52 | 1,53 | 1,54 |
| 14U | 140 | 58 | 4,9 | 8,1 | 8,0 | 3,0 | 15,60 | 12,30 | 491,0 | 70,2 | 5,60 | 40,80 | 45,40 | 11,00 | 1,70 | 1,67 |
| 16U | 160 | 64 | 5,0 | 8,4 | 8,5 | 3,5 | 18,10 | 14,20 | 747,0 | 93,4 | 6,42 | 54,10 | 63,30 | 13,80 | 1,87 | 1,80 |
| 16аУ | 160 | 68 | 5,0 | 9,0 | 8,5 | 3,5 | 19,50 | 15,30 | 823,0 | 103,0 | 6,49 | 59,40 | 78,80 | 16,40 | 2,01 | 2,00 |
| 18U | 180 | 70 | 5,1 | 8,7 | 9,0 | 3,5 | 20,70 | 16,30 | 1090,0 | 121,0 | 7,24 | 69,80 | 86,00 | 17,00 | 2,04 | 1,94 |
| 18аУ | 180 | 74 | 5,1 | 9,3 | 9,0 | 3,5 | 22,20 | 17,40 | 1190,0 | 132,0 | 7,32 | 76,10 | 105,00 | 20,00 | 2,18 | 2,13 |
| 20U | 200 | 76 | 5,2 | 9,0 | 9,5 | 4,0 | 23,40 | 18,40 | 1520,0 | 152,0 | 8,07 | 87,80 | 113,00 | 20,50 | 2,20 | 2,07 |
| 22U | 220 | 82 | 5,4 | 9,5 | 10,0 | 4,0 | 26,70 | 21,00 | 2110,0 | 192,0 | 8,89 | 110,00 | 151,00 | 25,10 | 2,37 | 2,21 |
| 24U | 240 | 90 | 5,6 | 10,0 | 10,5 | 4,0 | 30,60 | 24,00 | 2900,0 | 242,0 | 9,73 | 139,00 | 208,00 | 31,60 | 2,60 | 2,42 |
| 27U | 270 | 95 | 6,0 | 10,5 | 11,0 | 4,5 | 35,20 | 27,70 | 4160,0 | 308,0 | 10,90 | 178,00 | 262,00 | 37,30 | 2,73 | 2,47 |
| 30U | 300 | 100 | 6,5 | 11,0 | 12,0 | 5,0 | 40,50 | 31,80 | 5810,0 | 387,0 | 12,00 | 224,00 | 327,00 | 43,60 | 2,84 | 2,52 |
| 33U | 330 | 105 | 7,0 | 11,7 | 13,0 | 5,0 | 46,50 | 36,50 | 7980,0 | 484,0 | 13,10 | 281,00 | 410,00 | 51,80 | 2,97 | 2,59 |
| 36U | 360 | 110 | 7,5 | 12,6 | 14,0 | 6,0 | 53,40 | 41,90 | 10820,0 | 601,0 | 14,20 | 350,00 | 513,00 | 61,70 | 3,10 | 2,68 |
| 40U | 400 | 115 | 8,0 | 13,5 | 15,0 | 6,0 | 61,50 | 48,30 | 15220,0 | 761,0 | 15,70 | 444,00 | 642,00 | 73,40 | 3,23 | 2,75 |
Hot-rolled steel channels with parallel flange edges in accordance with GOST 8240-97
This table presents the geometric characteristics of hot-rolled steel channels with parallel flange edges (P series)
| Channel number (P series) | h [mm] | b [mm] | s [mm] | t [mm] | R [mm] | r [mm] | A [cm2] | m [kg] | Ix [cm4] | Wx [cm3] | ix [cm] | Sx [cm3] | Iy [cm4] | Wy [cm3] | iy [cm] | X0 [cm] |
| 5P | 50 | 32 | 4,4 | 7,0 | 6,0 | 3,5 | 6,16 | 4,84 | 22,8 | 9,1 | 1,92 | 5,61 | 5,95 | 2,99 | 0,98 | 1,21 |
| 6.5P | 65 | 36 | 4,4 | 7,2 | 6,0 | 3,5 | 7,51 | 5,90 | 48,8 | 15,0 | 2,55 | 9,02 | 9,35 | 4,06 | 1,12 | 1,29 |
| 8P | 80 | 40 | 4,5 | 7,4 | 6,5 | 3,5 | 8,98 | 7,05 | 89,8 | 22,5 | 3,16 | 13,30 | 13,90 | 5,31 | 1,24 | 1,38 |
| 10P | 100 | 46 | 4,5 | 7,6 | 7,0 | 4,0 | 10,90 | 8,59 | 175,0 | 34,9 | 3,99 | 20,50 | 22,60 | 7,37 | 1,44 | 1,53 |
| 12P | 120 | 52 | 4,8 | 7,8 | 7,5 | 4,5 | 13,30 | 10,40 | 305,0 | 50,8 | 4,79 | 29,70 | 34,90 | 9,84 | 1,62 | 1,66 |
| 14P | 140 | 58 | 4,9 | 8,1 | 8,0 | 4,5 | 15,60 | 12,30 | 493,0 | 70,4 | 5,61 | 40,90 | 51,50 | 12,90 | 1,81 | 1,82 |
| 16P | 160 | 64 | 5,0 | 8,4 | 8,5 | 5,0 | 18,10 | 14,20 | 750,0 | 93,8 | 6,44 | 54,30 | 72,80 | 16,40 | 2,00 | 1,97 |
| 16aP | 160 | 68 | 5,0 | 9,0 | 8,5 | 5,0 | 19,50 | 15,30 | 827,0 | 103,0 | 6,51 | 59,50 | 90,50 | 19,60 | 2,15 | 2,19 |
| 18P | 180 | 70 | 5,1 | 8,7 | 9,0 | 5,0 | 20,70 | 16,30 | 1090,0 | 121,0 | 7,26 | 70,00 | 100,00 | 20,60 | 2,20 | 2,14 |
| 18aP | 180 | 74 | 5,1 | 9,3 | 9,0 | 5,0 | 22,20 | 17,40 | 1200,0 | 133,0 | 7,34 | 76,30 | 123,00 | 24,30 | 2,35 | 2,36 |
| 20P | 200 | 76 | 5,2 | 9,0 | 9,5 | 5,5 | 23,40 | 18,40 | 1530,0 | 153,0 | 8,08 | 88,00 | 134,00 | 25,20 | 2,39 | 2,30 |
| 22P | 220 | 82 | 5,4 | 9,5 | 10,0 | 6,0 | 26,70 | 21,00 | 2120,0 | 193,0 | 8,90 | 111,00 | 178,00 | 31,00 | 2,58 | 2,47 |
| 24P | 240 | 90 | 5,6 | 10,0 | 10,5 | 6,0 | 30,60 | 24,00 | 2910,0 | 243,0 | 9,75 | 139,00 | 248,00 | 39,50 | 2,85 | 2,72 |
| 27P | 270 | 95 | 6,0 | 10,5 | 11,0 | 6,5 | 35,20 | 27,70 | 4180,0 | 310,0 | 10,90 | 178,00 | 314,00 | 46,70 | 2,99 | 2,78 |
| 30P | 300 | 100 | 6,5 | 11,0 | 12,0 | 7,0 | 40,50 | 31,80 | 5830,0 | 389,0 | 12,00 | 224,00 | 393,00 | 54,80 | 3,12 | 2,83 |
| 33P | 330 | 105 | 7,0 | 11,7 | 13,0 | 7,5 | 46,50 | 36,50 | 8010,0 | 486,0 | 13,10 | 281,00 | 491,00 | 64,60 | 3,25 | 2,90 |
| 36P | 360 | 110 | 7,5 | 12,6 | 14,0 | 8,5 | 53,40 | 41,90 | 10850,0 | 603,0 | 14,30 | 350,00 | 611,00 | 76,30 | 3,38 | 2,99 |
| 40P | 400 | 115 | 8,0 | 13,5 | 15,0 | 9,0 | 61,50 | 48,30 | 15260,0 | 763,0 | 15,80 | 445,00 | 760,00 | 89,90 | 3,51 | 3,05 |
Types of channels - classification, standards
According to the production method, the channel is divided into bent and hot-rolled profiles. A bent profile is obtained by cold profiling from a steel sheet blank (strip). In turn, a bent channel can be equal-flanged or unequal-flanged.
GOST 8278-83 regulates the range and maximum deviations of bent steel equal-flange channel. According to the requirements of this document, channel dimensions can be in the range from 25x26 to 410x65 with a thickness of 2 to 20 mm. The length of the bent profile, which is made from carbon, low-alloy steels, can range from 3 to 12 m.
GOST 8281-80 contains the range and value of maximum deviations of bent steel unequal-flange channel, which is made from ordinary quality grades and high-quality carbon steels, as well as low-alloy grades. Profile dimensions according to this document range from 32x22x12 to 300x80x40, thickness from 2 to 10 mm. The measured length of this profile is 4-11.8 meters.
GOST 8240-97 contains the range, classification and maximum deviations of the dimensions of hot-rolled channels for general and special purposes. The profile of this group can be 50 - 400 mm high. The channel number reflects the section height expressed in centimeters. According to this standard, the cross-section of a channel can have 2 types of profile: 1) with sloped edges (U and C series), 2) with parallel edges (P, E and L series). The width of the profile corresponds to the width of the shelf and can take a value of 32-115 mm. The marking of a channel, for example 10P, reflects its height and type of profile.
There are also highly specialized types of channels. Their shape and size are regulated by relevant standards.
GOST 21026-75 standardizes rolled products with bent flanges, which are used for the production of trolleys. They have only 2 standard sizes SP-10 and SP-12. GOST 5267.1-90 contains dimensions and reference characteristics of hot-rolled channels for railcar construction. The channel number according to the requirements of this standard can take values from 8V to 30V-2. GOST 5422-73 contains the dimensions of hot-rolled profiles intended for tractors. According to the standard, profile No. 5 corresponds to a 24T channel, and profile No. 6 corresponds to 18T.
Hot-rolled steel channels (light series) with parallel flange edges according to GOST 8240-97
This table presents the geometric characteristics of hot-rolled steel channels of the light series with parallel flange edges (L series)
| Channel number (L series) | h [mm] | b [mm] | s [mm] | t [mm] | R [mm] | r [mm] | A [cm2] | m [kg] | Ix [cm4] | Wx [cm3] | ix [cm] | Sx [cm3] | Iy [cm4] | Wy [cm3] | iy [cm] | X0 [cm] |
| 12L | 120 | 30 | 3,0 | 4,8 | 7 | — | 6,39 | 5,02 | 135,26 | 22,54 | 4,60 | 13,43 | 5,02 | 2,24 | 0,89 | 0,76 |
| 14L | 140 | 32 | 3,2 | 5,6 | 7 | — | 7,57 | 5,94 | 212,94 | 30,42 | 5,31 | 18,23 | 6,55 | 2,70 | 0,93 | 0,78 |
| 16L | 160 | 35 | 3,4 | 5,3 | 8 | — | 9,04 | 7,10 | 331,96 | 41,49 | 6,06 | 24,84 | 9,23 | 3,46 | 1,01 | 0,83 |
| 18L | 180 | 40 | 3,6 | 5,6 | 8 | — | 10,81 | 8,49 | 503,87 | 55,98 | 6,83 | 33,49 | 14,64 | 4,10 | 1,16 | 0,94 |
| 20L | 200 | 45 | 3,8 | 6,0 | 9 | — | 12,89 | 10,12 | 748,17 | 74,82 | 7,62 | 44,59 | 22,37 | 6,51 | 1,32 | 1,06 |
| 22L | 220 | 50 | 4,0 | 6,4 | 10 | — | 15,11 | 11,86 | 1070,97 | 97,36 | 8,42 | 57,82 | 32,85 | 8,61 | 1,47 | 1,19 |
| 24L | 240 | 55 | 4,2 | 6,8 | 10 | — | 17,41 | 13,66 | 1476,39 | 123,03 | 9,21 | 72,90 | 46,25 | 11,04 | 1,63 | 1,31 |
| 27L | 270 | 60 | 4,5 | 7,3 | 11 | — | 20,77 | 16,30 | 2218,16 | 164,31 | 10,33 | 97,48 | 65,10 | 14,17 | 1,77 | 1,40 |
| 30L | 300 | 65 | 4,8 | 7,8 | 11 | — | 24,30 | 19,07 | 3186,74 | 212,45 | 11,45 | 126,24 | 89,08 | 17,84 | 1,91 | 1,51 |
Hot-rolled steel channels (economical) with parallel flange edges according to GOST 8240-97
This table presents the geometric characteristics of economical hot-rolled steel channels with parallel flange edges (E series)
| Channel No. (series E) | h [mm] | b [mm] | s [mm] | t [mm] | R [mm] | r [mm] | A [cm2] | m [kg] | Ix [cm4] | Wx [cm3] | ix [cm] | Sx [cm3] | Iy [cm4] | Wy [cm3] | iy [cm] | X0 [cm] |
| 5E | 50 | 32 | 4,2 | 7,0 | 6,5 | 2,5 | 6,10 | 4,79 | 22,9 | 9,17 | 1,94 | 5,62 | 6,02 | 3,05 | 0,993 | 1,23 |
| 6.5E | 65 | 36 | 4,2 | 7,2 | 6,5 | 2,5 | 7,41 | 5,82 | 48,9 | 15,05 | 2,57 | 9,02 | 9,42 | 4,13 | 1,127 | 1,32 |
| 8E | 80 | 40 | 4,2 | 7,4 | 7,5 | 2,5 | 8,82 | 6,92 | 90,0 | 22,50 | 3,19 | 13,31 | 13,93 | 5,38 | 1,257 | 1,41 |
| 10E | 100 | 46 | 4,2 | 7,6 | 9,0 | 3,0 | 10,79 | 8,47 | 175,9 | 35,17 | 4,04 | 20,55 | 22,68 | 7,47 | 1,450 | 1,56 |
| 12E | 120 | 52 | 4,5 | 7,8 | 9,5 | 3,0 | 13,09 | 10,24 | 307,0 | 51,17 | 4,84 | 29,75 | 35,12 | 10,03 | 1,638 | 1,70 |
| 14E | 140 | 58 | 4,6 | 8,1 | 10,0 | 3,0 | 15,41 | 12,15 | 495,7 | 70,81 | 5,67 | 40,96 | 51,76 | 13,13 | 1,833 | 1,86 |
| 16E | 160 | 64 | 4,7 | 8,4 | 11,0 | 3,5 | 17,85 | 14,01 | 755,5 | 94,43 | 6,50 | 54,41 | 73,17 | 16,70 | 2,024 | 2,02 |
| 18E | 180 | 70 | 4,8 | 8,7 | 11,5 | 3,5 | 20,40 | 16,01 | 1097,9 | 121,99 | 7,34 | 70,05 | 100,51 | 20,87 | 2,219 | 2,18 |
| 20E | 200 | 76 | 4,9 | 9,0 | 12,0 | 4,0 | 23,02 | 18,07 | 1537,1 | 153,71 | 8,17 | 88,03 | 134,07 | 25,54 | 2,413 | 2,35 |
| 22E | 220 | 82 | 5,1 | 9,5 | 13,0 | 4,0 | 26,36 | 20,69 | 2134,2 | 194,02 | 9,00 | 111,00 | 179,05 | 31,54 | 2,606 | 2,52 |
| 24E | 240 | 90 | 5,3 | 10,0 | 13,0 | 4,0 | 30,19 | 23,69 | 2927,0 | 243,92 | 9,85 | 139,08 | 249,03 | 40,07 | 2,872 | 2,78 |
| 27E | 270 | 95 | 5,8 | 10,5 | 13,0 | 4,5 | 34,87 | 27,37 | 4200,2 | 311,12 | 10,97 | 178,25 | 316,24 | 47,43 | 3,011 | 2,83 |
| 30E | 300 | 100 | 6,3 | 11,0 | 13,0 | 5,0 | 39,94 | 31,35 | 5837,1 | 389,14 | 12,09 | 224,00 | 395,57 | 55,58 | 3,147 | 2,88 |
| 33E | 330 | 105 | 6,9 | 11,7 | 13,0 | 5,0 | 46,15 | 36,14 | 8021,8 | 488,17 | 13,18 | 281,23 | 497,02 | 65,78 | 3,282 | 2,94 |
| 36E | 360 | 110 | 7,4 | 12,6 | 14,0 | 6,0 | 52,90 | 41,53 | 10864,5 | 603,58 | 14,33 | 350,05 | 618,92 | 77,76 | 3,420 | 3,04 |
| 40E | 400 | 115 | 7,9 | 13,5 | 15,5 | 6,0 | 61,11 | 47,97 | 15307,9 | 765,40 | 15,83 | 445,41 | 770,89 | 91,80 | 3,552 | 3,10 |
Hot-rolled steel channels (special) according to GOST 8240-97
This table presents the geometric characteristics of hot-rolled special steel channels (series C)
| Channel No. (series C) | h [mm] | b [mm] | s [mm] | t [mm] | R [mm] | r [mm] | Shelf slope, % | A [cm2] | m [kg] | Ix [cm4] | Wx [cm3] | ix [cm] | Iy [cm4] | Wy [cm3] | iy [cm] | X0 [cm] |
| 8C | 80 | 45 | 5,5 | 9,0 | 9,0 | 1,5 | 6 | 11,80 | 9,26 | 115,82 | 28,95 | 3,13 | 22,24 | 7,63 | 1,38 | 1,57 |
| 14C | 140 | 58 | 6,0 | 9,5 | 9,5 | 4,75 | — | 18,51 | 14,53 | 563,70 | 80,50 | 5,52 | 53,20 | 13,01 | 1,70 | 1,71 |
| 14Ca | 140 | 60 | 8,0 | 9,5 | 9,5 | 5,0 | 10 | 21,30 | 16,72 | 609,10 | 87,01 | 5,35 | 61,02 | 14,09 | 1,69 | 1,67 |
| 16C | 160 | 63 | 6,5 | 10,0 | 10,0 | 5,0 | — | 21,95 | 17,53 | 866,20 | 108,30 | 6,28 | 73,30 | 16,30 | 1,83 | 1,80 |
| 16Ca | 160 | 65 | 8,5 | 10,0 | 10,0 | 5,0 | — | 25,15 | 19,74 | 934,50 | 116,80 | 6,10 | 83,40 | 17,55 | 1,82 | 1,75 |
| 18C | 180 | 68 | 7,0 | 10,5 | 10,5 | 5,3 | — | 25,70 | 20,20 | 1272,00 | 141,00 | 7,04 | 98,50 | 20,10 | 1,96 | 1,88 |
| 18Ca | 180 | 70 | 9,0 | 10,5 | 10,5 | 5,3 | — | 29,30 | 23,00 | 1370,00 | 152,00 | 6,84 | 111,00 | 21,30 | 1,95 | 1,84 |
| 18Sat | 180 | 100 | 8,0 | 10,5 | 10,5 | 5,0 | 6 | 34,04 | 26,72 | 1791,01 | 199,00 | 7,25 | 305,48 | 43,58 | 3,00 | 2,99 |
| 20C | 200 | 73 | 7,0 | 11,0 | 11,0 | 5,5 | 10 | 28,83 | 22,63 | 1780,37 | 178,04 | 7,86 | 128,04 | 24,19 | 2,11 | 2,02 |
| 20Ca | 200 | 75 | 9,0 | 11,0 | 11,0 | 5,5 | 10 | 32,83 | 25,77 | 1913,71 | 191,37 | 7,64 | 143,63 | 25,88 | 2,09 | 1,95 |
| 20Sat | 200 | 100 | 8,0 | 11,0 | 11,0 | 5,5 | 6 | 36,58 | 28,71 | 2360,88 | 236,09 | 8,03 | 327,23 | 46,30 | 2,99 | 2,93 |
| 24C | 240 | 85 | 9,5 | 14,0 | 14,0 | 7,0 | — | 44,46 | 34,90 | 3841,35 | 320,11 | 9,29 | 268,89 | 43,70 | 2,46 | 2,35 |
| 26C | 260 | 65 | 10,0 | 16,0 | 15,0 | 3,0 | — | 44,09 | 34,61 | 4088,00 | 314,50 | 9,63 | 115,60 | 171,60 | 5,03 | 3,91 |
| 26Ca | 260 | 90 | 10,0 | 15,0 | 15,0 | 7,5 | 8 | 50,60 | 39,72 | 5130,83 | 394,68 | 10,07 | 343,15 | 52,62 | 2,60 | 2,48 |
| 30C | 300 | 85 | 7,5 | 13,5 | 13,5 | 7,0 | 10 | 43,88 | 34,44 | 6045,43 | 403,03 | 11,74 | 260,74 | 41,41 | 2,44 | 2,20 |
| 30Ca | 300 | 87 | 9,5 | 13,5 | 13,5 | 7,0 | 10 | 49,88 | 39,15 | 6495,43 | 433,03 | 11,41 | 288,78 | 43,93 | 2,41 | 2,13 |
| 30Sat | 300 | 89 | 11,5 | 13,5 | 13,5 | 7,0 | 10 | 55,88 | 43,86 | 6945,43 | 463,03 | 11,15 | 315,35 | 46,29 | 2,38 | 2,09 |
Maximum deviations of parameters (channel sizes) in the table.
| Parameter | Parameter value range | Maximum deviation |
| Height h | Up to 80 | ±1.5 |
| Over 80 to 200 | ±2.0 | |
| Over 200 to 400 | ±3.0 | |
| Shelf width b | Up to 40 | ±1.5 |
| Over 40 to 89 | ±2.0 | |
| Over 89 | ±3.0 | |
| Shelf thickness t | To 10 | -0.5 |
| Over 10 to 11 | -0.8 | |
| Over 11 | -1.0 | |
| Wall thickness s | Up to 5.1 | ±0.5 |
| Over 5.1 to 6.0 | ±0.6 | |
| Over 6.0 | ±0.7 | |
| Warp of shelf D with shelf width b, no more | Up to 95 | 1.0 |
| Over 95 | 0.015b | |
| Wall deflection ƒ along the height h of the profile section, no more | Up to 100 | 0.5 |
| Over 100 to 200 | 1.0 | |
| Over 200 to 400 | 1.5 |
Advantages of hot rolled channel
The main advantage of this product is its shape. Thanks to this, it is used where high rigidity values are needed. Advantages of this type of rolled metal:
- Ability to withstand heavy loads.
- Resistance to deformation.
- Resistance to mechanical damage.
But this metal product has another advantage - the channel is resistant to corrosion.
But there are also disadvantages. Hot-rolled channel is difficult to weld. Therefore, in prefabricated structures, where elements are connected by welding, a product produced by cold rolling is used.
Advantages of bent channel
The production of this type of rolled metal takes place on a special profile bending machine. Paired pressing rollers act on the sheet metal workpiece on both sides, giving it a U-shape. With the help of modern equipment, this process occurs automatically and has a number of advantages: speed, the ability to create a profile of any shape, etc.
Unlike hot-rolled channel, its bent version has low weight. This makes it possible to use this type of channel in lightweight metal structures. The low weight of this product reduces the time for its installation and reduces the complexity of this process.
Bent profile is used:
- In the construction of buildings.
- During the reconstruction of buildings.
- During major repairs.
Lightweight versions of bent profiles can be used to assemble greenhouse frames and erect temporary structures. The scope of use of this product is not only construction, but also carriage building, machine tool building, shipbuilding, automotive industry, etc. It can be used to produce products that have high load resistance, but are light in weight.
