Everything about channel 18P - weight, dimensions, GOST, prices
Channel 18P - the letter indicates the parallelism of the channel flanges. What is shown in the picture. This is a key difference from 8U, which has an angled inner edge of the shelves. This difference is due to previous standards and needs. Previously, there were only “U” channels and only later “P” appeared, for the purpose of easier installation due to the parallelism of the shelves. A design like 8P gives even greater bending rigidity with the same metal data.
If we talk about the differences between hot-rolled and bent P channels, they are obvious. Bent has sloping outer corners, while hot-rolled has sharp ones. It is impossible to bend thick metal without breaking or damaging it at such a degree, so it is done while it is hot.
The channel is the most popular in strengthening concrete structures. Serves as a structural element for many industrial structures.
Structures are assembled from channel bars, mounted together with bolts and welding.
Dimensions and characteristics of channel 18P
- Weight of 1 meter - 16.3 kg, 17.4 kg (18aP)
- Channel height - 180 mm
- Shelf width - 70 mm, 74 mm (18aP)
- Shelf thickness - 8.7 mm, 9.3 mm (18aP)
- Wall thickness - 5 mm
- Corner thickness - 9 mm (curvature radius)
- Cross-sectional area - 20.7 cm2, 22.2 cm2 (18aP)
- Linear meters per ton - 61
Accuracy is divided into high, increased and normal.
- Identified by letters
- A (high)
- B (increased)
- B (regular)
For example: 5aP, 18bP, 12aU
Strength gradation into normal and increased.
Permissible dimensional deviations (according to GOST 8240-97)
- Height +- 2 mm
- Shelf width +- 2 mm
- Shelf thickness -0.5 mm
- Wall thickness +- 0.5 mm
- The deflection of the channel wall is no more than 1 mm. The wall is “h” in the diagram above. It should be straight, not stick out to the left or right within the specified limit.
- Curvature is no more than 0.2% of the channel length.
- Skewing the shelves - tipping them inward or outward, for different accuracies (a, b, c):
Deviations in channel “P” in wall thickness and radius of curvature are not controlled. And positive deviations in flange thickness are controlled by the maximum weight of the channel.
Weight deviations should not exceed +-4% for a batch and +-6% for a unit.
The mass of a linear meter is calculated using the cross-sectional area and density of steel 7.85 g/cm3 or 7850 kg per cubic meter.
Deviations in length dimensions
Channel length 18P ranging from 2 to 12 meters. But in agreement with the manufacturer, we can also produce ones longer than 12 m. Deviations in length for a channel from 2 to 8 meters are +- 40 mm. For lengths over 8 meters no more than 100 mm.
Material of manufacture
- Manufacturers often have the following made from steel:
- 09G2S
- 09G2S-15
- 09G2S-14
- St3
- S255
- S355-1
- S345
- 3ps
- 3sp/ps5
Channel area
For various aspects, such as paint consumption, it is necessary to know what the area of the product is. The task is not trivial, since the shape is not easy to accurately calculate. For the purposes of the answer, work has been done.
In 1 linear meter of channel 18P - 0.644 square meters (m2)
- For convenience, the number of m2 per unit of product of different lengths is calculated
- At 2 meters - 1.288
- At 3 meters - 1.932
- At 6 meters - 3.864
- At 9 meters - 5,796
- At 12 meters - 7.728
How many m2 in a ton
- In 1 ton of channel 18P - 39.3 square meters
- Explanation:
- First we find out how many meters are in a ton. To do this, divide a ton by 16.3 (the weight of 1 meter is 18P) and we get the number 61. Exactly so many meters of 18P channel in one ton.
- Knowing that 1 meter has an area of 0.644 m2, we multiply by the number of meters and get 39.3 m2 per ton.
Paint consumption
- It varies greatly depending on the color, application tool and type of paint.
- Approximate difference in paint consumption per 1m2:
- Water – 155 g
- Enamel – 135 g
- Black color – 70 g
- White color - up to 125 g
General standards for painting metal usually range from 100-150 g per m2. More economical with a spray gun. The hiding power of black paint is higher, because in order to achieve a white coating of iron, you need to use more paint, otherwise it will not be painted a good white color.
Approximate average prices
A ton costs - from 34 to 67 thousand
The cost of 1 meter of channel - 550 - 1090 rubles
But this is in theory, obtained by calculating the footage per ton.
It is calculated as follows:
There are 61 meters in a ton of 18P channel, divide the cost of a ton by 61, we get the above amounts for 1 linear meter. However, at what price it will be sold at retail, only the retailer himself can say.
The study revealed that prices are the same regardless of the footage or metal. The peak prices were observed in May 2018, then the average was 58 thousand. The lowest in the recent past was at the beginning of 2016, then the average price showed 30 thousand per ton. There is no seasonality in the cost. Sometimes the price varies significantly depending on the length.
It can be added that a decrease in prices in 2019-2021 may occur due to the risk of recession in the economy. Which entails a decrease in demand, a contraction of the economy and, accordingly, a fall in prices.
On average, the price for a channel made of steel 09G2S-12 is higher. Not always, but often by 10-15% than for a channel made of other steels. The price is usually 10-15% lower for popular channels made of steels St3, 3sp/ps5.
GOST standard
You can find those manufactured according to GOST 82783, 27772-83. Although for the most part they are almost always made from 8240 different years (8240-89, 8240-97)
GOST 19281-89. Rolled products made of high strength steel.
Characteristics of foreign analogues
Analogues are often no different. The object is a clear product that has been manufactured for many years and is quite well studied and standardized. The matter remains with compliance with technology and process control. Which depends more on the integrity of the manufacturer.
Source: https://gauge.tk/vse-pro-shveller-18p-ves-razmery-gost-tseny/
What is the weight of channel 18?
Channel beams are widely used in construction, medium and heavy industry. Durable and lightweight, they are always used in critical areas of metal structures and buildings. Mostly, a channel is a steel beam in the shape of the letter U, but channels are produced from non-ferrous metals, such as aluminum, as well as decorative asbestos channels used by architects.
The main advantage of channels is their wide range; you can almost always choose the right channel for the task, regardless of what is at the forefront of the requirements for the profile - increased strength, lightness of the product or low cost. Below are the weights of 18 channels per linear meter, produced by hot rolling technology.
Profile (U)
There are two methods for producing channels with slanted inner edges of metal shelves:
As is already clear from the name, hot-rolled channels are made by applying pressure to a workpiece heated to a high temperature. Bent profiles are made on special machines using a bending process at normal temperature of the raw materials for the manufacture of products. Such channels do not have sharp corners between the shelf and the wall, so they are easy to identify by their appearance even in the packaging.
But the main indicator of a channel, affecting its strength properties and weight, is the wall width and length.
BrandWeight of 1 meter, kg| 18 (U) | 16,30 |
| 18 (Ua) | 17,40 |
Profile (R)
Determining the width of a channel is quite simple by measuring the distance between the outer sides of its flanges, that is, the perpendicular parts relative to the wall of the channel, its central element. This value in centimeters will be the channel number. Moreover, it is advisable to take measurements not at the end itself, but at some distance in order to obtain the exact value of the width of the channel.
The cross-section of the beam determines its series - if the far edges of the flanges narrow and widen at the base - this is profile U, but if the wall and flanges are of uniform thickness, then it is necessary to measure them separately and look at the tables of GOST 8240-97 for hot-rolled channels.
BrandWeight of 1 meter, kg| 18 (P) | 16,30 |
| 18 (aA) | 17,40 |
Profile (C)
Manufacturers produce channels from several types of steel, among which St3ps or St3sp are the leaders. The properties of these steels are described in GOST 535-88. St3ps steel is usually used for general-purpose profiles, and St3sp for those products for which increased demands are placed, for example, elements of highly loaded columns, floors in multi-story construction, etc.
It should also be remembered that channels can be equal and unequal . For floors and those requiring a symmetrical arrangement of metal structure elements, the former are usually suitable, and unequal-flange channels are made for specialized tasks - in the production of cars, tractors, etc.
BrandWeight of 1 meter, kg| 18 (C) | 20,20 |
| 18 (Ca) | 23,00 |
| 18 (Sat) | 26,72 |
Profile (L)
For low-rise construction and to strengthen the central elements of metal structures, which bear the main load, and not only, lightweight channels , designated the L series.
Such channels greatly benefit in weight, having the same overall dimensions as the channels of the P and E series.
BrandWeight of 1 meter, kg| 18 (L) | 8,49 |
Profile (E)
Similar to the 18P channel, this profile is only slightly inferior to it in terms of load-bearing characteristics. But, in return, it has less weight ; accordingly, the manufacturer spends less metal on the manufacture of the channel and can set a lower selling price. This can explain the rationale for releasing economical series channels and their relevance.
BrandWeight of 1 meter, kg| 18 (E) | 16,01 |
Source: http://stroymetcon.ru/sortament/profilnaya/shvellery/18.html
Channel 18 technical specifications
Steel channels have universal application from the construction of high-rise buildings to various branches of the chemical industry and mechanical engineering. According to the requirements of GOST 535-88, a hot-rolled steel channel with a width of 18 cm is made of low-carbon steel grade 09G2S and carbon steel PS, which has a positive effect on the quality characteristics of the metal.
There are several types of steel channels 18, which are specified in GOST 8240-89:
- with parallel edges of shelves marked “18P”;
- products with shelf edges that have a slight slope - “18U”.
Typically, in the construction industry, preference is given to rolled steel marked “18P”, since this profile shape ensures faster installation.
Channel 18 dimensions and technical characteristics
Steel products with a U-shaped profile section have different classifications depending on certain parameters:
- manufacturing method: pressed (as a rule, products are made of non-ferrous metal), hot-rolled (the blanks come with a thick shelf), bent (the shelves are thinner);
- channel length, which can be a multiple of measured, measured or unmeasured;
- Depending on the type of shelf slope and shape, products are distinguished between light, sloped, economical and parallel.
Information on how much channel 18 weighs can be found in the GOST standard 8240-97, where the number of the rolled metal product indicates the distance between the shelves in centimeters.
Other main parameters of channel 18 include:
- specific weight of a linear meter of hot-rolled channel - 16.30 kg;
- product footage in a ton - 61.35 m;
- shelf height - 180mm;
- shelf thickness - 8.7 mm;
- product wall thickness - 5.1 mm;
- shelf width - 70mm;
- rolled metal length - from 2m to 12m;
- radius (R) of internal rounding - 9.0 mm;
- the radius (r) of curvature of the shelf is 3.5 mm;
- The cross-sectional area of channel 18 is 20.70 cm2.
Scope of application of metal products
Channel 18 covers all types of installation and construction work. A wide range of products have been obtained in industries in the form of blanks capable of withstanding bending and axial loads. Also, similar rolled metal products are used in heavy engineering, carriage building, machine tool building and automotive industry.
With the help of metal channels, structures are given the necessary strength and rigidity, as well as stability, without which it is impossible to erect columns, bridge spans, purlins or other long structures.
Source: http://cheltruba.ru/shveller-18-tehnicheskie-harakteristiki/
Channel 18U length 12 meters. Calculate Weight - Channel 18 Umm. Suppliers and prices
Prices for this size (length 12) can be viewed in the following regions: Arkhangelsk, Astrakhan and the region, Barnaul, Belgorod, Bryansk and the region, Buynaksk, Vladivostok, Vladikavkaz and the region, Vladimir, Volgograd, Vologda, Voronezh and the region, Gorno-Altaisk, Grozny , Gudermes, Ekaterinburg, Essentuki, Zheleznodorozhny, Ivanovo and region, Izhevsk, Irkutsk, Kazan, Kaliningrad and region, Kaluga, Kemerovo, Kirov and region, Kostroma and region, Krasnodar, Krasnoyarsk, Crimea, Kursk, Lipetsk and region, Lobnya, Magadan and region, Magnitogorsk, Makhachkala, Moscow, Murmansk, Naberezhnye Chelny, Nazran, Nalchik, Neftekamsk, Nizhnevartovsk, Nizhny Novgorod, Nizhny Tagil, Novokuznetsk, Novorossiysk, Novosibirsk and region, Novocherkassk, Nur-Sultan, Omsk and region, Orel and region, Orenburg, Penza and region, Perm, Petropavl. Kamchatsky, Pskov, Pyatigorsk, Rostov-on-Don, Ryazan and the region, Samara, St. Petersburg, Saransk, Saratov, Sevastopol, Sergiev Posad, Smolensk and the region, Sochi, Stavropol Surgut, Syzran, Syktyvkar, Taganrog, Tambov and the region, Tver and region, Togliatti, Tomsk, Tula, Tyumen, Ulan Ude, Ulyanovsk, Ufa, Ukhta, Khabarovsk, Khanty Mansiysk, Cheboksary, Chelyabinsk, Cherepovets, Chekhov, Elektrougli, Elista, Yuzhno Sakhalinsk, Yakutsk, Yaroslavl.
How to get profitable offers from suppliers in Moscow
Channel No. 18U, 12 meters each
As a rule, in the construction field you can often encounter the fact that this or that material is needed right now and it doesn’t matter whether it is the city of Moscow or a completely different region. Today, to solve this problem, there is a special website that helps clients and customers find mutually beneficial cooperation. Want to know exactly how this happens?
Quite simple if you use the latest technology and the World Wide Web. So, you go to the website METAL100.ru and leave your application, let it be Channel No. 18U of 12 meters, indicate the region Moscow.
Although, it is worth noting that your search may not be limited only to the capital. These may be other regions of the Russian Federation, and with one click you can cover all cities of the CIS.
At this point, your work is almost finished, since the automatic system itself sends out mailings to suppliers. And they usually respond within 3 minutes.
It is after this period of time that you will begin to receive offers for Channel No. 18U, 12 meters each, to your email. The information will contain not only wholesale and retail costs, but also delivery times and possible delivery conditions if the region is not Moscow. As you can see, everything is quite simple and such a system is somewhat reminiscent of a virtual tender, which you can announce without filling out a whole stack of papers.
Now, of course, you want to know which link you can use to submit your application. You will find her address below:
Send a request to suppliers
You understand that from now on you have a unique opportunity through which you can save your time. Forget about unnecessary searches. After all, now all suppliers themselves will offer you their goods. And you decide who to give preference to.
By the way, the site is also good because information about the cost of rolled metal is updated daily and you can verify the obligations of the supplier if he is an authorized user.
This will help you avoid possible mistakes and save you from scammers.
Profitable deals are a reality, which tomorrow can become a great chance for you to buy everything you need of excellent quality at the lowest price.
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Source: http://metal100.ru/prodazha/Sortovoj-prokat/SHveller/18%D0%A3/12_p1
