In the construction industry can not do without the knowledge of mathematics, physics and the ability to perform complex calculations. Today, in the construction of low-rise buildings can not do without specialized pipes. This is one of the most popular types of metal. Production is divided by purpose, is made of different material. The shape is also different variety of products. shaped tube weight affects its value, proper organization of transportation. Consider ways to calculate n 1. m of metal.
Characteristics and types of profile pipes
Proftruby - it's steel products in the form of a hollow tube with a cross section other than circular. In recent years, manufacturers began to produce plastic profile. Cross-section of the pipe is:
- oval;
- in the form of a rhombus;
- triangular;
- rectangular;
- square;
- flat-oval;
- complex shapes.
The technological process of steel manufacture is a circular tube deformation. First bent and welded strips, the finished item is sent to the molding. By means of the rollers it is given a predetermined cross-section. Finished rolled metal products are tested for seam fortress, a heat treatment.
The RF produce steel profiled part with transverse dimensions of 10 x 10 to 500 x 400 mm. The minimum length of the product 6 m, the maximum - 18 m The thinnest wall -. 2 mm, the thickest - 22 mm.
Scope
The first profiles were made in the 19th century., But widely applied to the middle of the last century. Today different kinds of steel profile pipes have been used successfully in the following areas:
- Installation of carcass of low-rise industrial and commercial buildings, residential buildings.
- Production of the core for advertising banners.
- Furniture manufacture.
- Construction of public transport, sheds, greenhouses, nurseries and athletic fields.
- Production lamps shelves, frames for paintings, supports for flowers, etc.. interior elements.
- Build fences, poles, support structures.
Sectioned tubes in demand due to its advantages. What exactly - you learn on.
What are the pros use
Proftruby have a long range of sizes. This extends the scope of application of metal. Note and other advantages:
- Strength. This characteristic profiled pipe parts is significantly higher than with a round cross section. The steel elements are resistant to chemical and biological attack. This distinguishes them from the woodwork.
- Do not deform under high loads.
- Economy. profiles cost less, as by having an inner cavity amount spent metal less.
- Weight of core steel tubes is significantly less than similar products made of wood. This facilitates loading and installation work.
- When designing structures made of tubes with rectangular and square cross-sections do not have problems. They are easy to calculate based on the straight sections.
- Easy to install. Profiled tube easily cut grinder, it is convenient to fix. When installing there is no difficulty in using the fittings.
- Quick installation. Even the most complex designs are set as quickly as possible.
- The products meet health and safety standards and regulations.
Profiled tube of special steel grades are used in the Arctic, Maritime Territory. In regions with adverse weather conditions particularly important framework for the construction speed of buildings and other lightweight metal structures.
Important! Using lighter types of metal in construction, you can go from heavy cement-based materials to lightweight. This will allow to erect buildings with less load on the foundation.
Range of profile pipes
To organize all the available diversity proftrub and their classification introduced the concept of product mix. A collection of types of profiled metal manufactured by enterprises.
Gauge profile steel pipe make out as a list or table. Each kind of products is listed according to their names in accordance with GOST. Lists contain all kinds of products: name, characteristics. Assortment proftrub diverse. They are classified in many ways, but the main - a cross-section configuration. rectangular and square elements are the most common. They are in demand due to the strength, durability and reasonable prices.
In the method of manufacturing a steel product mix recovered proftruby deformed hot and cold method. Here the guests are treated products made by electric welding. Cold-welded parts and to prevent the occurrence of rust zinc coated layer.
Why do I need to know the proportion of
Weight proftruby - an important feature, because the cost depends on it. However, the determination of this value depends not only on the proper organization of transportation and price. It is necessary to know that the operating conditions of products meet these challenges.
Important! To calculate the weight of 1 meter proftruby required data on an amount of material for its manufacture.
Corrugated pipes are widely used in the construction industry. Not knowing their weight, the designer is not able to calculate the load:
- withstood, erected structure of a profile rolled metal product;
- posed by the structure itself.
Physical and mechanical characteristics of the profile metal depends on its weight. Knowledge of the correct value of the parameter will allow to develop a project that in the future a reliable facility will be built. The probability of failure is important to reduce to zero. Therefore, when building structures design specialist identifies the core features for installation selects the optimal profile materials. The simpler the structure, the easier it is to determine the mass of pipes, and other characteristics.
Dimensions and weight of metal is necessary to know the profile and for other purposes. These values affect the characteristics and storage conditions. Can not do without them, and in the calculation of the cargo: it is important to know the number of meters per ton of metal profile.
What determines the weight
Weight 1 n. m metal of the pipe depends on several parameters:
- amount of material;
- shape in section;
- thickness of the pipe wall;
- density of the material;
- geometric data.
The most simple and convenient parts - rectangular or square cut, because they just bonded together. Mass tube 1 m is calculated by several methods. To determine the required quantity developed formulas. The result of calculation is required for profile metal mass. It is necessary for the resulting performance for a construction project.
Steel parts made of different material grades differ in weight even with the same dimensions. The most exploited are the product of this size:
- 40×20×2;
- 60×40×
Important! Proftruby different manufacturers often have different masses, even with the same size. This situation is related to the presence of tolerances. Even the dimensions recorded at a party, may differ from actual ones.
Method of determining the mass of claim 1. metal-m Profile
For high precision best individual weight calculation. The formula for determining the parameter is very complicated, it takes into account all key indicators. Such mathematical calculations performed by the designers in the design of the frame buildings and structures made of metal profile. The formula looks like this: 1 n. Details m = (L1 + L2) X S x 2 x ρ, where:
- L1 and L2 - side length, m;
- S - wall thickness, m;
- ρ - density of the alloy.
To find out how much it will weigh 1 p. m square or rectangular profile pipe, in addition to the formula is recommended to use the options.:
- specially designed tables that are presented in the literature and the Internet;
- online calculators.
Online software users to easily determine the weight of even round profiles and pipes other cross-sectional shape. In order to obtain the result required in the form of the original data (the length, cross section shape, the wall thickness). In the pop-up menu to choose the material from which made the metal. Characteristics of the most popular domestic manufacturers of steel products listed in the tables.
| Parameters section, mm | Weight 1 n. m, g |
| 15×15×1,0 | 479 |
| 20×20×2 | 1080 |
| 25×25×2 | 1390 |
| 30×30×2 | 1700 |
| 40×40×4 | 4300 |
| 50×50×2.5 | 3640 |
| 50×50×3 | 4310 |
| 50×50×3,5 | 4940 |
| 50×50×4 | 5560 |
| 60×60×4 | 6820 |
| 80×80×3 | 7130 |
| 80×80×4 | 9330 |
| 80×80×5 | 11440 |
| 120×120×5 | 17720 |
Rectangular - GOST 8645 82
| Parameters section, mm | Weight 1 n. m, g |
| 28×25×2 | 1480 |
| 30×20×2 | 1390 |
| 40×20×1.5 | 1310 |
| 40×20×2 | 1700 |
| 40×25×2 | 1860 |
| 50×40×2.0 | 2650 |
| 50×40×2.5 | 3250 |
| 60×30×3 | 3830 |
| 60×40×2 | 2960 |
| 60×40×3 | 4300 |
| 60×40×3.5 | 4940 |
| 60×40×4 | 5560 |
| 80×40×2 | 3590 |
| 80×40×2.5 | 4430 |
| 80×40×3 | 5250 |
| 80×40×4 | 6820 |
| 80×60×3 | 6190 |
| 80×60×4 | 8070 |
To determine the mass of the profile of the table, it is necessary to multiply the length by the weight of one item. m. In the tables presented metal of weight averaged for the density ρ = 7850 kg / m3. This value varies depending on the carbon content steel. What it is, the less weight alloy. When it is required to calculate the mass production profile for a particular value ρ, given in table value is divided by the averaged parameter and multiplied by the density of the particular alloy grade (kg / m3):
- korrozitsionnye - 7900;
- Stamped - 7800;
- Tool - 7700;
- Ordinary carbon - 7870;
- low-alloy and carbon quality - 7850.
The accuracy of the tables is lower than volumetric calculations using formulas. Therefore, the weight determination is preferably performed by means of mathematical.
