Assortment of profile pipes. Classification and standard sizes of profile pipes What is a profile pipe

Profile pipes actively used in construction, mechanical engineering, furniture production and other areas, presented at modern market in great variety. In order to streamline this diversity and classify these products according to certain criteria, such a concept as assortment was introduced.

The word “assortment” itself, if you turn to dictionaries, comes from the word “grade” and means a list of individual types of products that are presented on the market. In relation to profile pipes, the assortment means a set of types of these products manufactured manufacturing enterprises or available at the supplier's warehouse.

The pipe range is presented in the form of a table or a simple list in which individual species products are listed in accordance with their names according to GOST 13663 86 (profile square, profile rectangular pipes, etc.). Such a table or list must contain all available types of pipes, for each of which all names are listed and characteristics are given.

The range of pipes belonging to the profile category is very diverse. They are classified according to various parameters, but the main one is profile cross section. So, pipes are distinguished:

• with a rectangular profile;
• square section;
• flat oval;
• oval;
• with hollow ribs;
• with special type profile.

The assortment is compiled separately for each type of pipe, which is regulated by the requirements of the relevant GOSTs.

Basic parameters of the most common profile pipes- square and rectangular section

Metal pipes belonging to a particular type of profile can also differ in a number of parameters. The main parameters include:

• the method by which the pipes are produced (they are cold-rolled, hot-rolled, welded);
• materials used in production;
• method of processing pipe ends;
• main purpose.

The range of pipes presented by a particular manufacturer not only allows you to get acquainted with the range of its products, but also serves as an indicator of its level of development. Consumers of such products and organizations selling them prefer to establish relationships with manufacturing enterprises whose range of pipes includes a wide range of products.

Range of rectangular profile pipes: GOST 8645-68

The most clear information about the range of steel rectangular pipes is presented in the corresponding GOST, which is presented below.

Assortment of square profile pipes: GOST 8639-82

To get acquainted with the assortment, it is worth viewing the data from the corresponding GOST, which is presented below.

Criterias of choice

Of the entire range of modern profile pipe products, the most common are products with square and rectangular cross-sections. Traditionally, they are made from metal, but now this material is increasingly being replaced by plastic.

The main area of ​​application of profile pipes is the production of metal structures for various purposes, where these products successfully replace solid steel bars. The big advantages of pipes compared to such bars are their affordable cost and low weight.

When choosing profile pipes from the assortment for the manufacture of a metal structure, it is very important to correctly select their profile and cross-sectional dimensions. The main criterion that guides this choice is load bearing capacity pipes of both square and rectangular sections. It should also be taken into account that products with different sizes cross-sections may vary significantly in weight.

According to the production method, as noted above, the assortment includes cold- and hot-deformed steel profile pipes. In accordance with the requirements of GOST 13663 86, this also includes products manufactured using electric welding. These pipes, like cold-formed pipes, can be coated with a layer of zinc, which prevents corrosion.

Sectional dimensions of profile pipes, most in demand in construction market, are:

• 15x15;
• 20x20;
• 25x25;
• 30x30;
• 40x40;
• 60x60;
• 80x80;
• 100x60;
• 100x100.

Advantages of profile pipes

The profile category includes all pipes whose cross-sectional shape differs from round. Most widespread From the entire assortment we received products with square and rectangular profiles, the dimensions of which correspond to 25, 60, 100, 40x80, 40x100, 50x50 mm.

Steel profile pipes with dimensions exceeding 100 mm are used primarily as structural elements. Such products, which have four stiffening ribs, are distinguished by high strength characteristics and low specific weight.

Products with a 60 mm profile perfectly resist bending, due to which they are successfully used in construction and in the arrangement of various engineering communications.

Any profile pipes allow you not only to create complex steel structures, but also significantly save on the cost of expensive metal.

Among the advantages of profile pipes made of steel are the following.

• Their entire range is characterized by low metal consumption, which makes it possible to save up to 25% of metal even when constructing one construction project.
• When using such elements construction projects are built with high efficiency.
• All produced modern industry The range of profile pipe products meets sanitary and hygienic requirements; the pipes are easy to maintain and disinfect.
• Such products also meet fire safety requirements.
• Even the most complex designs When using these elements, they are installed with maximum efficiency.

Areas of application

Steel pipes having Various types profile, are actively used in many areas. Depending on the profile size, such products are used to solve the following problems.

• Pipes with a 60x30 profile are characterized by low metal consumption; their use makes it possible to significantly save on the cost of metal when performing construction work.
• For installation of metal structures various sizes and degree of complexity, pipes with profile sizes 15x15, 40x60, 60x60 and 100x100 are most actively used.
• Products with profile dimensions 25x25 have a number of advantages. These advantages include low weight, exceptional strength characteristics, tightness, ease of implementation installation work.

Nowadays, steel profile pipes have become widespread. supporting parts, make stop frames for public transport, railings, benches and much more. The most popular area of ​​application for corrugated steel pipes is reflected in the construction industry when installing metal structures and constructing buildings.

Great opportunities selection of types of corrugated steel pipes makes it possible to produce suitable design for the required tasks.

The steel pipe has a cross-section with 4 stiffeners. Despite the fact that such a product does not weigh much, it can withstand very heavy loads.

Their application

Application of profile steel pipes differs in breadth of scale. Undoubtedly, the most basic area of ​​use of profile pipe materials- this is construction. In modern building structures This type of pipe assortment is used everywhere.

Their use has the following advantages:

1. Metal is saved by almost a quarter when compared with the construction of a metal building using an I-beam.
2. Easy installation and the small amount of time spent constructing the frame and structure.
3. Such metal structure more resistant to the formation of corrosion manifestations when compared with other pipe rolling options. And cold-formed corrugated pipes successfully replace I-beams, angles and channels.

Specifications

Let's consider the main specifications profile steel pipe:

• Profile view. Its main types are: square, rectangular and oval. This criterion determines the division of rolled pipe profiles in the general assortment.
• Geometric dimensions. For rectangular views, this is the width and height. And also the length of each segment.
• Wall thickness. Quite a significant detail, because it determines the scope of further use.
• Weight. An equally significant assessment that determines the quality level of goods. Through weight and geometric dimensions you can find out the wall thickness. This becomes very useful in situations where there is no access to measurements.

When describing steel corrugated pipes, it should be noted that their range is determined by GOST 8639-82. In this document, three main types of profile are distinguished:

• Cold-formed.
• Hot rolled.
• Electric welded.

The first two are seamless, and the third is produced from sheet material using welding technologies.

It should be noted that any characteristic of a pipe depends on a number of its other indicators. For these reasons, we can conclude that the presence of a table of the corresponding calculated GOST values ​​makes it possible to easily find out how much high level quality from one manufacturer or another.

Weight

Table No. 1 weights of steel pipes.

The weight of the professional pipe will depend on its length and wall thickness. This point must be taken into account when choosing them.

Video:
the types and types of profile pipes and their technical characteristics are presented. Watching this video will help you decide on the choice of professional pipes specifically for your situation.
Weight must be taken into account when constructing massive metal structures; if this is your case, then use our tables.

Table No. 2 weights of steel profile pipes.

Range of these products

In addition to these parameters, classification can be made based on the following points:

1. Steel marking.
2. Absence/presence of finishing heat treatment.

The length parameters in this situation are determined by GOST 13663-86. This standard determines that steel pipes different shapes They are produced in standard measured lengths, their length ranges from 1 to 12 meters.

The cross-sectional area of ​​corrugated pipes is determined by GOST 8642-68; accordingly, these products were divided into 36 different types sizes with a cross-sectional value within the range of 0.6 by 0.3 cm, and 0.9 by 3.2 cm.

By profile type they are divided into:

• Options made of oval steel.
• Products with cross-section rectangular.
• With a square section.

Video

Depending on the scope of application, these pipes are classified into:

• Profiled pipes for furniture. The construction of them, as a rule, does not bear large loads.
• Flat - oval types. Another name for them is an arch profile. It is distinguished by more complex manufacturing.
• Options general purpose. They are made from hot-rolled one and a half millimeter strip. Such products do not have high requirements for surface quality.
• Construction. For their production, hot-rolled and low-alloy steel is used, which is characterized by increased strength.

Square profile

Square steel profile pipe is widely used in construction field.

It is the square shape that is the main advantage in this situation. It provides high stability and speed of installation work.

These materials act as a reinforcing element during the construction of support structures and frames. They can be found not only in construction. They are no less often used in the mechanical engineering sector.

Square pipes are divided into the following types:

1. seamless cold deformation or cold rolled.
2. seamless hot deformation or hot rolled.
3. profile products produced from sheet material and through welding technologies.

The range of such goods consists of products with a wall thickness of 0.1 to 1.4 cm, and a length of six to twelve meters. Craftsmen call this type of product a guarantee of compliance with the financial costs of construction and their minimization.

Rectangular profile

Profile rectangular pipe is a type of pipe rolling materials rectangular shape. This is a kind of subtype of square options. It is also a hollow metal profile with a variety of volume sizes and wall thicknesses.

They are used when assembling structures and building elements that play a load-bearing role. They are used for furniture frames, scaffolding for construction, children's areas and much more.

Features of shapes and low weight of products significantly reduce weight main structure, but resistance to the influence of high load influences in this situation increases. They are often used as a protection channel for wiring a network of cables.

The main differences are determined by GOST 8645-78. According to these standards, there are such rectangular pipes:

• with unmeasured length;
• with measured length;
• assortment with short measured length.

Depending on the type, the length of seamless or welded materials varies from 11.5 to 12.5 meters:

• Seamless corrugated pipes of unmeasured and measured length, made by hot-rolling - from 4 to 12.5 m.
• Seamless pipes of unlimited length, made using the cold-drawn method - from 1.5 to 12.5 m. And measured pipes - from 4.5 to 11 meters.
• Pipes of unmeasured length, made by electric welding - from 1.5 to 9 m, of measured length - from 5 to 9 m.

When working with such profile products, allowances of 0.5 cm are made for each part. Maximum indicator exceeding the length level is generally equal to 10 cm.

Electric welded profile

Electric-welded steel profile pipe is produced using different technological methods. The first of them is the formation of a profile from a flat workpiece. In this case, simple equipment is used, which is characterized by low energy costs. However, the resulting product has some disadvantages:

1. uneven stress distribution in the transverse section.
2. significant thinning of the profile blank in corner areas.

Change negative characteristics in in this case allow Hi-tech, which assume uniform stress distribution at the initial stage. In this case, a round blank with the required volume is formed.

Secondary processing in this case involves the formation of a section of the required dimensions and shape through the pressure of special rolls.

Galvanized steel profile

Galvanized profile pipe is a special type of rolled metal. The galvanized profile has increased anti-corrosion characteristics, which extends its service life.

Video

The advantageous difference of a galvanized product is:

• Speed ​​of installation work and its convenience.
• Increased strength.
• Kink resistance.
• Decline total weight structures without losing its strength capabilities.
• Logistic convenience.

Their areas are very different, but the main ones are:

• Construction of various scales.
• Mechanical engineering.
• Construction of prefabricated structures.

On this moment This type of rolled metal can be found in billboards, fences, and retail premises. And everywhere these steel pipes fully meet everyone regulatory requirements.

Manufacturing Features

The production of profile pipes is more complicated and more expensive than the production of round pipes.

Technological methods for producing professional pipes are:

• Pressing of round billets produced at rolling mills. This option is expensive, therefore, the second type is more popular.
• Welded joint strip profiles.

The first method is noteworthy in that it makes it possible to preserve the strength characteristics of steel pipes one hundred percent. The fact is that its connections are seamless. The production sequence using this method is as follows:

• First, a conventional hot-rolled billet is produced with round shape.
• Through the press it turns into an oval, takes on the shape of a square or rectangle.
• Calibration of heated workpieces is carried out on the rollers of rolling equipment, so the products acquire the required dimensions.

Profiled pipes, which were manufactured using welding, are not very distinguishable from seamless analogues, but at the same time they lose up to 5 percent of strength. The release sequence in this case is as follows:

1. Steel sheets are cut into strips.
2. After this, such strips are rolled into a tape.
3. It is fed into the rollers of molding machines, which perform deformation flat sheets in professional preparations.
4. The fastening seam is welded in special chambers filled with an inert medium.

Video

The main advantage of a professional pipe is its low cost and high strength. Buying these steel products will not be difficult. Managers of any company will provide all the information about their cost and characteristics.

Steel profile pipes are successfully used in the construction of commercial premises, warehouses, sports facilities, residential and industrial buildings. These products are used as supports, columns, and various elements of various structures.

Their high strength makes them very popular for creating metal structures that are particularly complex. These products are deservedly very popular in the construction market.

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The concept of assortment

What is this “assortment”? The meaning of the word means a list of a specific product presented on the market or a list of products produced by the manufacturer.

If we take profile pipes, the range of these products includes all types of products that are produced at enterprises or located in suppliers’ warehouses.

It is convenient to present the range of profile pipes in the form of tables. They contain, among which square and rectangular parts of a wide range of products are most often used.

Profile is one of the main parameters of the parts presented in the table. In addition, it may indicate the steel grade, profile size, wall thickness of the products, yield strength, manufacturing method, and other characteristics, after reviewing which we have a complete understanding of the product.

GOST 13663 86

In this State Standard profile pipes made of steel of both seamless and welded types for general purpose are presented. For production they are used various groups grades of carbon and alloy steel.
The linear parameters of profile steel risers are recorded in special tables that can be easily found on the Internet.

Elements can be:

• with the presence of hollow ribs;
• flat oval shapes;
• oval and teardrop-shaped sections;
• square();
• rectangular ().

The assortment provides for the presence of 2 groups of profile pipes in accordance with GOST:

• products of group A: standardized mechanical properties become;
• products of group B: availability is standardized chemical elements in a specific proportion, mechanical characteristics base metal.

The index of the product group when marking it - A or B, is placed before the steel grades.

The assortment provides for the presence of steel profile pipes with and without heat treatment.

Non-experts in this industry sometimes talk about the range of steel profile pipes GOST 13633 86. It turns out that such a Standard does not exist at all, and the numbers are probably simply mixed up and instead of 13663 they call 13633. That's all. So you need to be extremely careful and precise before talking about State Standards.

Let's focus on rectangular and square elements, which are more in demand in comparison with analogues of other sections.

Rectangular pipes GOST 8645 68

As stipulated in the Standard and accordingly, pipes can be produced:

• seamless method (hot and cold deformation);
• welding method (electric welding with hot and cold calibration, furnace welding).

As GOST 8645 68 in practical activities they use square analogues of GOST 8639 82, the range of which is also quite large.

The shape of the rectangular elements should be the same as in the drawing.

Table 1 shows some parameters of general-purpose rectangular products.

Table 1

Features of application

Risers are manufactured in close correlation between linear parameters and wall thickness. Thanks to the stiffening ribs, the design of rectangular parts is characterized by strength, reliability, long service life and other positive properties.

Rectangular risers are used in:

• construction industry. With their help, they are created bearing structures for sports, cultural and mass facilities, offices, and other premises. Rectangular parts make ideal railings and various decorative fences;
• mechanical engineering. Modern tractors, agricultural machinery, heavy vehicles, trailers are mounted on frames made of hollow rectangular risers. Low weight combined with high strength is the main condition for creating reliable metal structures;
• agriculture. Constructed greenhouses, greenhouses, seed sheds, equipment, and other structures can easily withstand serious both transverse and longitudinal loads;
• furniture industry. There are such risers in every school desk, in every chair. They supply furniture for medical and public institutions. Together with wooden elements they look very aesthetically pleasing.

You can’t do without them when building frames trade pavilions, canopies, temporary and permanent advertising structures.

With their help, devices are installed that facilitate the performance of work indoors and outdoors.

Effective interaction with planes helps expand the range of applications of products. Due to the rectangularity of the structural parts, the range of functional purpose final product.

Despite the savings in metal during production, rectangular risers are a fairly high-quality, sought-after product. Rectangular parts are available to consumers, which is associated with the competitive cost of the product and high quality.

GOST 8639 82

In this Standard we're talking about about the range of square profile pipes, for the manufacture of which they use:

• seamless method (hot- and cold-formed elements);
• electric welding (cold-deformed, hot-calibrated parts).

The document applies to the range of profile pipes GOST 8639 82 square section, for the production of which furnace welding was also used.

Depending on the manufacturing method, purpose, steel grades, parts can be of different lengths with different wall thicknesses, different sections and external dimensions (Table 2):

table 2

The maximum error in total length is no more than +100 mm.

The drawing indicates the form, and the table. 3 for dimensions and other parameters of profile square pipes GOST 8639 82.

Table 3

Assortment of square profile pipe GOST 30245 2003

This Standard specifies not only the parameters of square products, but also the technology for their production.

One of the main areas of application for such parts is capital construction.

For absolute confidence in the strength and reliability of structures, for their construction it is necessary to use only a range of steel profile pipes that comply with GOST.

The production of a wide range of profile square risers as a variety of rectangular products is carried out accordingly. Elements can be dimensional or non-dimensional. If necessary, you can purchase parts that are multiples of the measurements.

Slicing individual elements finished products, enterprises adhere to the State Standard.

The document emphasizes that:

• the minimum length of parts cannot be less than 4 m, and the maximum - no more than 13 m;
• buyers are interested more often than others finished products 6 m and 12 m long (namely elements with such linear parameters can be found more often than others in construction stores);
• when cutting dimensional parts, you must adhere to maximum deviations about up to 60 mm;
• the required length is determined by the customer, but it must be within the limits specified in the regulatory documents.

For square-section products, the Standard requires compliance with the length of the sides, linear dimensions which can range from 50 mm to 300 mm. The assortment of goods provides for the correspondence of the thickness of the element to its size. With an increase in the last parameter, the wall thickness should also increase ( minimum value– 2 mm, maximum – 14 mm).

Some designs provide for the use of risers custom size such parameters: cross-sectional area, wall thickness, length. Such elements must be tested. Produced parts must comply Technical specifications state regulatory body that assesses their level of safety. The parts are marked with the TU designation.

The shape of the parts is indicated in the drawing.


With separate parameters for some product sizes
can be found in table. 4.

Table 4

About performance characteristics and areas of application

The design of a square riser is a closed profile, for the formation of which a metal strip is used. The quality characteristics that appear during product operation depend on the design features and material of manufacture.

These products are different:

• increased resistance to bending and torsion;
• strength;
• reliability;
• small weight;
• long service life.

Today it is difficult to imagine human activity without square risers. They found wide application in different areas.

Profiles are the basis of modern industrial and domestic construction. By reconstructing old construction sites and constructing new ones, square section parts are used to create roof frames, floors.

It is impossible to imagine functioning without them:

• furniture industry (shelves, racks, chairs, tables, cabinets);
• mechanisms of the engineering industry;
• agriculture (sheds, garages, utility rooms, livestock farms);
• advertising business, other areas of human life.

Compared to analogues round section, square and rectangular profiles bend after high loads. Moreover, after the load ceases, the riser occupies initial position. This is their strength and reliability.

Round products, when subjected to a similar impact, can not only become deformed, but also completely collapse.

Production stages

The range of square steel profile pipes GOST 30245 2003 provides for the use of sheet steel grades from carbon and low-alloy groups with sheet thicknesses of 3 mm, 4 mm and higher. Individual orders are produced using high-quality rolled steel grades.

After determining the manufacturing method and product sections, production begins, which involves several stages:

1. Unwinding and cutting rolled sheets into strips of a certain width.
2. Forming a long strip from cut strips by welding.
3. Feeding the tape, forming it into products with a square cross-section on a molding machine.
4. Welding the connecting longitudinal seam formed as a result of bending the workpiece.
5. Removal to a minimum (remaining no more than 0.5 mm - 1 mm) of flash from the weld.
6. Carrying out control measures regarding the quality of welds. If deficiencies are found, they are removed.
7. Cutting high-quality pieces of products of the required length.
8. Packaging of finished elements.

Finished packaged products are sent to a warehouse for storage.

Video

Gutters. You should know it!

The drainage system is one of the most important systems external structure Houses. This design is not just a decoration for the home, or a tribute to fashion. Gutters are designed to collect and direct the flow of rainwater from the roof of a building to a specially designated place away from the foundation of the building.

How to calculate drainage

Working correctly drainage system protects the roof, roofing, walls of the house, building base and foundation from premature wear. Not to mention the aesthetic component of the benefits of gutters.

They save you from dirt near the house, puddles near the basement and accidental falls. Let's consider the most simple questions on what the drainage system of a residential building should be like. What size should it be drainpipes? The size of the pipes depends on what part of the country you live in, the average annual rainfall and the area of ​​the part of the roof for which the drainage is calculated.


In a temperate climate, the calculation takes into account that a 1.5 cm² cross-section of the drain is sufficient to drain water from 1 m² of roofing. Based on this, a pipe with a diameter of 10 cm is capable of draining water from a roof area of ​​about 53 meters.

What is the best material to use for gutters and downspouts?

The most common materials are aluminum and vinyl. But you can use steel and copper gutters. In this case, the determining factor may be the price of the product.

Installing copper gutters will be expensive, but with proper maintenance, these gutters will last for decades. If you live in an area with little temperature variation, vinyl gutters are a smart choice.

Seamless gutters or not? Seamless gutters and gutters, according to experts, are the best option. These gutters are made to specific dimensions. This type of gutters will cost more for the owner of the house. Precast gutters leak and sag over time. With any choice, it is advisable that the installation of gutters be carried out by a specialist in this field of construction.

Laying utilities

Construction of any facility, be it residential apartment house or manufacturing facility, cannot do without arranging communications that supply heat, water and gas to the building.

Considering the complexity and volume of this type of work, it would be advisable and profitable to contact specialists offering services in the field of laying and connecting utility lines of all types.

The use of carefully selected materials and modern designs technology allows us to complete the work in the shortest possible time, guarantee its quality and offer customers the optimal price level for the services offered.

Trench or trenchless method

Depending on the purpose of the object and the characteristics of the soil, work on arranging communications can be carried out using a trench or trenchless method.

The first is considered traditional - it requires time and the use of excavator equipment, as well as the need to prepare a place for the temporary placement of soil extracted from the ground, the place of which will be taken by pipes and their finishing.

In turn, the trenchless method is a modern one, developed in connection with the need to arrange communications in difficult-to-pass places underground, when the task is to preserve transport routes and buildings on its surface. The main methods of trenchless arrangement of communications are horizontal or inclined drilling, soil punching, puncture, carried out using special equipment and equipment that guarantees the integrity of the soil layer and the safety of objects.

Each type of communications requires special measures to be taken during the development of pits and digging trenches.

So, water supply networks They are distinguished by their ramifications and the need to arrange frequent connections to nearby objects. Their arrangement requires, first of all, compliance with the conditions for maintaining conductive properties and protection from negative external influences, as well as economical operation and the possibility of maintenance and periodic monitoring.

In order to carry out all types of work economically and quickly, construction and housing and communal services organizations rent construction equipment and technology.

In turn, heating networks differ significant size pipe diameter.

Their design requires care and attention, as well as the selection of materials, on the one hand, resistant to prolonged thermal effects, and on the other, capable of withstanding a drop in temperature in the ground in winter period, and thirdly, to ensure the preservation of the coolant temperature.

Therefore, the design of work on the arrangement of heating networks is trusted experienced specialists guaranteeing compliance with all necessary conditions.