Channel: size, weight, price, or how to choose a suitable profile

Channel - a popular material used to create a variety of metal structures and constructions of carcases. Condition profiley- correct choice is the selection of the size, weight and identification of the desired quantity. State Standard developed the requirements to be met by channels. Size, weight, density, and their ratio - all include relevant tables specified GOST. Descriptions of the most popular sizes are given in the article.

Tables U-sections sized in accordance with the GOST

Channel - it's quite a popular product metal produced from various grades of steel. The term is of German origin. The main distinguishing feature of the profile is U-shaped in cross section products.

For the manufacture of sills used special equipment. As a method for manufacturing hot-rolled or different bent shapes. The shape of the faces of shelves they can be parallel or have a certain slope inside. The classification is also a numeric value in the form of numbers next to labels. The numbers indicate the size of which is determined by the distance between the outside faces of the flanges.

Making channels, as well as other metal products, is regulated by the relevant state standard, which clearly spelled out the basic requirements for a particular profile type. All data clearly presented in tables. For example, standard paper "channel steel, hot-rolled. Range "(GOST 8240 97) comprises a table 7 such deployed.

Using corresponding tabular data, it is possible to determine the quality of products, correlating it with the actual size described in the GOST. Ideally, indicators should be exactly the same, although sometimes metal products made to order. Individual profiles are produced in small batches - for a specific project. sills price to order different from the cost of production of serial production.

The standard height of U-sections ranges from 50 to 400 mm, the width of the shelves - from 32 to 115 mm. The margin of error (as compared to said standard sizes) may be a maximum of 3 mm. Measuring the length of U-sections corresponds to the index of from 4 to 13 m.

Weight channels, their markings and symbols

To denote different types of channel bars use a special marking. The letter indicates the type of profile, characterizing features of the structure and location of faces:

• "P" - indicates parallel;
• "U" - indicates the presence of the slope on the sides;
• "E" - testifies to the economy;
• "L" - implies lightness;
• "C" - speaks of a special purpose profiles.

Useful advice!Numerical index near the letters indicates the size of the product, it corresponds to the height shown in the STATE table. Note that channels usually labeled with numeric values ​​in inches and their height is in the table indicated in millimeters. Intuitively, this is as follows: channel 8, or 12 wt sill dimensions sill 16P.

In addition to the height of the product, and other applicable size figures. In the tables they have special designations:

• h - is the height of the profile, which is the main value that determines the size of metal products;
• b - indicates the width of the shelves;
• S - figure thickness main wall;
• R - specifies the radius of the inner rounded front part;
• t - indicates the thickness of the shelves;
• r - the value of the total radius rounded ledges.

An important indicator in the selection of the material (in the design of the construction) is the weight of the sill. The correct calculation of data allows you to accurately calculate the amount of necessary production and thus save on their purchase. There are several methods for calculating the weight per meter. They depend on the method of manufacturing the steel. For example, to determine the specific mass of hot sill take into consideration internal parameters of the radii of curvature and the curvature of shelves.

Determination of the weight and the price per square meter sill: table size, cost profiles

Complex calculations of the specific weight, except for mathematical skills requires more and mainstream school course of physics and geometry. Therefore it is better to use ready-made calculations given in special tables, or use an online calculator. To do this, simply enter the necessary data and get an accurate result.

U-sections value is determined in accordance with the meter. On the formation of prices affects the height of the profile, which determines the number of the product and the brand of steel, which made products. For example, a channel, made from low-alloy steel, will cost much more expensive than similar products made of carbon steel. This is due to the fact that the first type of raw material has higher strength characteristics.

Acting today the average price of channels on the Russian steel market are given in the table below:

number sill	The weight per meter, kg	Length tonne, m	Price per linear meter, rbl.
5	4,8	207	200
6,5	5,9	169	240
8	7,1	142	265
10	8,6	115	350
12	10,4	97	420
14	12,3	82	480
16	14,2	71	520
18	16,3	60	600
20	18,4	55	760
22	21,0	48	870
24	24,0	42	1020
27	27,7	35	1150
30	31,8	32	1400
40	48,3	21	4250

Above shows the general table. In order to have an idea about each type of channel, its individual features, dimensions and characteristics, it is necessary to get acquainted with each of the types in more detail. Below, as an example, consider the most driving styles and sizes of channels, with high demand and widely used.

Features sill 10: size, weight, cost

Range of channel bar 10 is quite popular metal products, is wide enough. Characteristics of its species and cultivars regulates GOST №8240, developed back in 1989. Among the properties of the products include parameters shelves and walls, in particular, their height and width, and also taken into account a radius of curvature at the U-sections marked with 10U.

Channel 10 has three subtypes with appropriate labeling:

• U - profile, in which the inner flange are made with a bias;
• P - channel, where the shelves faces have a parallel arrangement;
• E - efficient products in a parallel shelves.

Useful advice!Each type has its own channel bar designation, for example, 10P, 10U or 10E. The corresponding values ​​contains a separate table. Despite the same numeric data, they are different types of products.

The most widely used in various industries is due to its size, channel 10p. It is widely used in individual housing for the construction of load-bearing structures. Number 10 on the labeling, in fact, refers to the height of 100 mm, and the letter P - on the type of profile, while stressing the parallel arrangement of shelves. This type of channel bar has the following options:

• width is 46 mm;
• wall thickness - 4.5 mm;
• flange thickness - 7.6 mm;
• the radius of curvature - 7 mm;
• radius at the edge of the shelf - 4 mm.

To determine the weight of the channel bar 10 needs to know the cross-sectional area. This figure corresponds to 10.9 cm². Channel of this type made from a length of 4 to 12 m. Longer products are available on request. Weight 1 meter sill 10 at a density indicators became 7.85 g / cm³, calculated to be 8.59 kg. The error may be 3-5% in weight of said values. The average price per square meter sill 10 - 356 rubles.

The main parameters of channel bar 12: the size, weight and cost

A metallic article entitled channel 12 with parallel flanges body has a thickness of 7.8 mm, a wall - 4.8 mm. Produce such products in length from 2 to 12 m. Longer copies can be made to order. The popularity of this type of profile is due to its positive qualities, prisoners in the optimal ratio of weight, strength and relatively low cost.

of low alloy steel profiles are subject to operation at high temperatures and under conditions of increased exposure to chemicals. product is also excellent resist compression and bending, but at the same time, poor resistance to torsion.

Weight 1 meter sill 12 can be found by using the table or apply online calculator above. It is from this parameter depends on the price of the product. According to the table sill 12 weight per 1 of 10.4 kg.

Like other channels of sizes, this kind of product has the additional marking with different characteristics. The most popular is the channel 12P having parallel shelves with edges, without bias.

Dimensions 12P sill are listed below:

• width - 52 mm;
• linear weight - 10.40 kg;
• in length tonne - 95.94 m.

Channel 12 has a mark and other series. For example, 12L - is the product of metal dimensions 120h30 mm, characterized by sloping shelves. Weight of 1 m of such structure is 5.02 kg, and yardage to 1 tonne is 199 m.

Useful advice!Marking sill 12C indicates its special purpose, 12E - economical series of products with a shelf without tilting. Their standard size - 120h52 mm and the weight is slightly lower - 10.24 kg. Accordingly, in a ton of material it contained almost 97 m.

Variations sill 14: dimensions, weight, scope

U-shaped products are labeled 14, thanks to its high strength characteristics, widely used in fortifications concrete products, is used for the reinforcement of metal structures, as well as various construction and restoration works. This type of product has its own series:

1. 14P - this channel produced by hot-process having utility. It is produced in accordance with GOST 8240-97.
2. 14U - a profile of special purpose, which is widely used in engineering.
3. Formed channel with equal flanges discharged by specialized machines.
4. Bent profile of steel with unequal flanges forming equipment to produce.

Channel 14, as well as other types of metalMay be either a parallel shelves (marked "P"), and with oblique - mark "U". For both series, there are common characteristics:

• height - 140 mm;
• width - 58 mm;
• shelves thickness - 8.1 mm;
• wall thickness - 4.9 mm;
• weight 1 meter sill 14 - 12.3 kg;
• 1 ton, there are 81.3 m products.

It should be noted that the weight of the sill 14 is strictly regulated by GOST requirements specified. The maximum error should not exceed 4.5% by weight of the purchased products. Channels of this type are available in lengths from 2 to 12 m. The cost of production depends on the series.

Features open U-16: the size, weight and cost

Channel 16 is widely used to strengthen large-scale structures, such as bridges, supports, and by pouring the foundation vysokoetazhnyh houses. Technical features a special series of metal include its application in mechanical engineering, car building and shipbuilding.

Related article:

Range U-sections: correlation characteristics as a guarantee of reliability
Types, characteristics and marking sheet metal U-shaped products. Conditions according to GOST, Gosstandard table. Weight and dimensions sills.

The main feature is the slope faces of the middle product that gives improved flexural and torsional stability. This variety of products has three series:

• 16P - used in assembly work due to ease of installation;
• 16U - different resistance to vertical loads, which suggests its use in areas with increased seismic activity;
• 16 liters - thanks to the low weight is used for the construction of monolithic structures and shipbuilding.

All products comply with specific state standards:

• 8240-97 - hot-rolled channels;
• 8278-83 - cold-channels with equal shelves;
• 8281-80 - bent with unequal flanges.

Standard sizes sill 16 correspond to values:

• height - 160 mm;
• shelves width - 64 mm;
• wall thickness - 5 mm;
• shelves thickness - 8.4 mm.

Weight sill 16 corresponds to the value of 14.2 kg. In one tonne, there are about 70 m rolled. These figures are directly proportional to affect the pricing of steel profile. For example, the average price per square meter sill 16 is 520 rubles. Products produced in length from 2 to 12 m.

Useful advice!Length effect on the ease of transportation. It is therefore not practiced production channels higher than 12 m. At the same time this is the length of most chassis, just below her special autoplatforms calculated.

Weight, price, dimensions open U 20: all the necessary information about the profile

Channel 20 belongs to the category of universal product metal produced from hot rolled steel manner. It is used in virtually all industries - not only in the construction of load-bearing structures, but also for the construction of bridges, automobile and railcar industries, as well as heavy machinery. Manufacture is regulated by several guests, according to which the set specifications and tolerances of the norm.

Channel 20 has three main types, which correspond to certain requirements of Gosstandart:

• general purpose and special purpose - GOST 8240-97;
• special automotive - GOST 19425-74;
• Special facilities for railcar - GOST 5267.1-90.

All these types of rolling common characteristic parameters such as height, width and weight of the sill flanges 20. It should be noted that the profile can be either equilateral or flanges with inclined faces. The dimensional characteristics of profile 20 are as follows:

• height - 200 mm;
• shelf width - 76 mm;
• wall thickness - 52 mm;
• shelves thickness - 9 mm.

Mass sill different types may differ slightly. For example, the channel bar 20P weight meter 1 is 18.4 kg. Series P channel bar 20 of the most in demand in the construction market. It is used as for the construction of frames, as well as for the construction of bridges, the creation of large machine tools, as well as for other purposes. According to GOST 8240-89 for hot and GOST 8278-83 bent to U-sections profiles made of 4 to 12 m.

Channel: dimensions, affecting the scope of the

Summarizing the above, the conclusion that the channel - it rolled metal products, which is used for reinforcing structures made of reinforced concrete for the manufacture of crane production, elektroopor, bridges, and other large-scale neftevyshek structures. A wide range of use due to high level of strength and stability at relatively low weight products. In this case, different sizes sills are applicable in specific areas, or have a special purpose.

So, thanks to its compact dimensions, channel 8 is widely used in individual housing in As concrete webs, and also serves for producing frameworks in the construction of door and window openings. Widespread use, through universal size and strength, a channel 10 made by hot rolling.

In the same manner, and channel 12 is produced. Its main positive feature - excellent weldability. It is used to increase capacity and support structure as reinforcing structures. Channel 14 was produced using the rolling mills. Enhanced stiffness suggests its use as a bearing beams in the ceiling during the construction of tall buildings, but also in car building.

Useful advice!When selecting rolled metal products should be aware of the existence of different series sills. Profiles that have the verge of shelves arranged in parallel, marked with the letter "P"; Special channels are marked with "C". Model with inclined inner edges of shelves are indicated by the letter "U"; cost profiles correspond to the mark "E"; sign "L" means lighter version sills.

Channel 16, manufactured by hot rolling, are widely used in the construction of high-rise buildings, as well as in the construction of metal bearings for bridges. Dimensions sill 18 allows its use as reinforcement in high rise structures and in structures having a high degree of stress.

Profiles marked 20, 22, 24 are classified as high. They are used in the construction of highly structures and structures that move. For example, the dimensions sill 24 suggest its application in the construction of the sliding bridges and cranes with high hoisting capacity.

Channel 40, with maximum rigidity, is used in heavy industry, which provides for a whopping load in the shipbuilding industry, as well as for the construction of oil platforms.

Thus, channels are important in the construction, so are widely used in its different areas. When you select a product you need to be guided in a range of sizes and to know the main characteristics of each type of channel bars. This will allow to choose the right series and the best use of this type of sheet metal products.