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
Classification of channels
| No. | Name of channels | Description |
| 1 | Rolled according to GOST 8240-97, DSTU 3436-96 | |
| Steel channel | ||
| 1.1 | Channel. Series U | Channel with a slope of the internal edges of the shelves. Series U. |
| 1.2 | Channel. Series P | Channel with parallel flange edges - P series. |
| 1.3 | Channel. Series E | Economical channel with parallel flange edges - E series. |
| 1.4 | Channel. Series L | Light channel with parallel flange edges - L series. |
| 1.5 | Channel. Series C | Channel with a slope of the inner edges of the shelves - series C. |
| Channel according to the manufacturer's specifications | ||
| 1.6 | Channel according to specifications | |
| Special channel | ||
| 1.7 | Channel. Series C | Channel with a slope of the inner edges of the shelves - series C. |
| Special channel for tractors and carriage building | ||
| 1.8 | Channel | Special channel for tractors and carriage building |
| 2 | Bent channel | |
| 2.1 | Channel according to GOST 8278-83 | Channel. Bent equal flange |
| 2.2 | Channel according to GOST 8281-80 | Channel. Bent unequal |
Features of channel 16: dimensions, weight and cost
Channel 16 is widely used for strengthening large-sized structures such as bridges, supports, as well as when pouring the foundations of high-rise buildings. The technical features of a special series of rolled metal products provide for its use in mechanical engineering, carriage building and shipbuilding.
Related article:
Assortment of channels: the ratio of characteristics as a guarantee of reliability. Types, markings and characteristics of U-shaped rolled metal products. Requirements according to GOST, Gosstandart tables. Weight and dimensions of channels.
The main feature is the slope of the edges in the middle of the products, which gives increased bending strength and torsional stability. This product type has three series:
- 16P - used in installation work due to ease of installation;
- 16U – is resistant to vertical loads, which suggests its use in areas with increased seismic activity;
- 16L - due to its low weight, it is used for the construction of monolithic structures and in shipbuilding.
Depending on the design, channels have different purposes
All products comply with specific GOST:
- 8240-97 – hot-rolled channels;
- 8278-83 – cold-formed channels with equal flanges;
- 8281-80 – bent with unequal flanges.
The standard dimensions of channel 16 correspond to the following values:
- height – 160 mm;
- shelf width – 64 mm;
- wall thickness – 5 mm;
- shelf thickness – 8.4 mm.
The weight of channel 16 corresponds to 14.2 kg. There are about 70 m of rolled products in one ton. These indicators directly proportionally affect the pricing of steel profiles. For example, the average price of channel 16 per meter is 520 rubles. Products are produced in lengths from 2 to 12 m.
Helpful advice! The length of the product affects the ease of its transportation. That is why it is not practiced to produce channels longer than 12 m. At the same time, this is the length that is most popular, and special vehicle platforms are designed just for it.
The length of the channel can be different and most often starts from 2 m
Examples of the use of channels in construction
Formwork installation
Channel (Strap) – stroyone
Welded metal structures
Channel in welded structure
Traverse from channels - stroyone
Stairs
staircase – stroyone
Stairs – stroyone.com
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 |
Characteristics of channel 10: dimensions, weight, cost
The range of channel 10, as a fairly popular rolled metal product, is quite wide. The characteristics of its varieties and types are regulated by GOST No. 8240, developed back in 1989. The properties of products include the parameters of shelves and walls, in particular their height and width, and also the radii of curvature of channels marked 10U are taken into account.
Channel 10 has three subtypes with corresponding markings:
- U – a profile in which the internal shelves are made with a slope;
- P – channel, where the edges of the flanges are parallel;
- E - economical products with parallel placement of shelves.
Helpful advice! Each type of channel has its own designation, for example, 10P, 10U or 10E. The corresponding values are contained in a separate table. Despite the same numerical data, these are different types of products.
The range of channels includes products of various sizes and configurations
The most used in various industries is, due to its size, the 10P channel. It is widely used in individual construction for the construction of load-bearing structures. The number 10 in the marking, in fact, indicates its height, equal to 100 mm, and the letter P indicates the type of profile, while emphasizing the parallel arrangement of the shelves. This type of channel has the following parameters:
- width is 46 mm;
- wall thickness – 4.5 mm;
- shelf thickness – 7.6 mm;
- radius of curvature – 7 mm;
- The radius of curvature at the edge of the shelf is 4 mm.
To determine the weight of channel 10, it is necessary to know the cross-sectional area. This figure corresponds to 10.9 cm². This type of channel is produced in lengths from 4 to 12 m. Longer products are made to order. The weight of 1 meter of channel 10 with a steel density of 7.85 g/cm³, according to calculations, is 8.59 kg. The error in the indicated mass values may be 3-5%. The average price of channel 10 per meter is 356 rubles.
Channels are made by hot-rolled, cold-rolled and by bending metal sheets
