Matviyiv (Pavlograd) seamless thin-walled steel pipe st20, st45 GOST 8734, thick-walled steel seamless pipe st20, st45, GOST 8732, seam pipe GOST 10704, GOST 3262

Matviyiv (Pavlograd) seamless thin-walled steel pipe st20, st45 GOST 8734, thick-walled steel seamless pipe st20, st45, GOST 8732, seam pipe GOST 10704, GOST 3262

Seamless thin-walled pipes are used in many industrial and construction industries:

     engineering,
     oil industry,
     chemical industry,
     public utilities,
     construction,
     furniture manufacturing,
     Interior Design,
     production of electrical lighting fittings,
     production of refrigeration equipment, etc.

For each application, thin-walled pipes have individual requirements. Pipes differ in diameter (thin-walled pipes of large diameter), strength, level of withstand load. But each product must comply with the established state standard.
The profile thin-walled pipe will provide reliability and ease of construction
The profile thin-walled pipe is used for the construction of lightweight structures that do not carry significant loads:

     partitions,
     fences,
     public transport stops,
     benches, gazebos,
     furniture,
     automotive Parts,
     products for industrial machinery
     and other products.

Thanks to the use of a profile thin-walled pipe, it becomes possible to create more complex structures. The product provides their special durability and reliability.
Profile pipes are rectangular or square. This form is ideal for the construction of residential and industrial buildings. Square and rectangular profile pipes are used as load-bearing elements. Flat walls provide the convenience of laying such a pipe on a flat surface.
The use of profile pipes also reduces costs.
The profile pipe has other purposes, in addition to construction. It is often used to create lightweight frame structures, such as metal doors.
Profile pipes (including thin-walled pipes of large diameter) can withstand high static loads and are resistant to negative environmental impacts. Therefore, they are widely used in the advertising industry. The light weight of a thin-walled pipe makes it possible to create complex advertising structures.
Thin-walled pipe: price
The price for the product “thin-walled pipe” depends on several parameters:

     steel grade,
     diameter,
     wall thickness,
     pipe length,
     purchase option - wholesale or retail.
Properties of such pipes
The popularity of seamless steel pipes provides a number of good performance characteristics. Seamless steel pipes are characterized by the following:
1) high strength;
2) lack of a seam, which leads to the impossibility of leaks.
If the walls are thick enough, then the product becomes even more reliable and durable.

How and where pipes are used
Hydraulic systems in the modern world simply cannot do without such a detail as seamless steel pipes. These can be, for example, cylinders installed on cargo class vehicles. The use of seamless pipes is becoming very expedient in the energy sector. Wall thickness is the main parameter. It directly affects how long the entire structure can last, how long it can withstand rupture. You can spend a lot of money on repairing the boiler if the pipe stops functioning. Therefore, any investment in seamless pipes pays off in a short time.
Additional product information
The high strength of these products allows them to be easily used, for example, in the processing and oil-producing industries. Seamless steel pipe has such a set of characteristics that make it a fairly popular product in many areas of production and industry. This is especially true for the construction and road transport sectors. Even in the defense industry, seamless steel pipes have found their application - they help where chemically active and hazardous substances are used. After all, leaks in such cases can cause irreparable damage not only to the environment, but also to human health.
The most difficult issue is the choice of pipes for the manufacture of certain structures or the construction of pipelines. When choosing, it is recommended to consider:

     the possibility of using different types of pipes for a specific purpose;
     specifications;
     pipe sizes.

Scope of hot-formed pipes
Hot-formed pipes are made from a metal ingot heated to a high temperature by rolling.
Manufacturing process of hot-formed pipes
The finished product is solid, that is, it does not have welds and is distinguished by the following qualities:

     high resistance to mechanical damage, temperature fluctuations and hydraulic shocks;
     resistance to high pressure and high temperatures;
     seismic resistance.

Where are hot formed pipes used? The preferred areas of application are:
     chemical industry;
     matire building;
     oil refining and oil producing industries;
     heat supply.

Hot-formed pipes, due to the peculiarities of production, are produced with a larger wall thickness, which causes additional strength of the product.
Scope of cold-formed pipes
The final processing of the cold-formed pipe is carried out without exposure to high temperatures.
Manufacturing process of cold-formed pipes
Cold formed pipe has the following features:

     high strength. Due to the peculiarities of the production process, the strength of cold-formed pipes is approximately 25% higher than that of other types of steel pipes;
     the accuracy of the declared dimensions;
     susceptibility to bending;
     the ability to withstand low and high temperatures, different pressures, hydraulic shocks, temperature changes.

The advantages of cold-formed pipes determine the scope of their use. This type of steel pipe is used:

     in the manufacture of furniture fittings and individual furniture elements;
     in the manufacture of electric lighting;
     in public utilities (construction of pipelines for various purposes);
     frame construction;
     in mechanical engineering;
     in boiler installations;
     in the oil and gas industry.

The only drawback of cold-formed and hot-formed steel pipes is the high level of susceptibility to corrosion, which is reduced by additional chemical treatment - galvanizing.
Docking methods
How to make thick-walled pipe connections correctly? The technology of joining completely coincides with the welded types of products. The difference is only in the wall thickness and diameter. Depending on these parameters, the optimal method of hermetic coupling of pipeline elements is selected.
Threaded
Can be used for small diameter structures with normal wall thicknesses. This procedure is performed using dies or on a lathe. For thin-walled models, this technique is not suitable, since even the minimum thread depth can lead to a loss of structural integrity.
Gas welding
It is carried out by heating the surface, followed by diffusion of the molten metal of the structures, only overlapping is done. Suitable for both thin-walled (preferred) and thick-walled pipes up to 6 mm thick. A large wall thickness will not allow the surface of the product to melt.
Electric welding
A universal method with which you can connect thin-walled and thick-walled pipes. It is important to choose electrodes of a certain type and diameter. A simple rule should be remembered - the thicker the wall of the pipe, the larger the electrode diameter is needed.
Areas of use
Due to their unique properties, seamless structures have found application not only as pipelines, but also in mechanical engineering, oil production and the chemical industry. Most often they are used in those processes, the flow of which is accompanied by high pressure and temperature loads. This is the operational features of seamless pipes.
First of all, this concerns oil production - during the drilling of wells, they strengthen the walls with their help, and also restrain hydraulic pressure when passing through the next layer. In this case, the products are subject to special requirements for mechanical strength and inertness in relation to petroleum products. Pipelines for pumping liquids with high temperatures are made from seamless structures. Most often, this task is in the organization of communal heat supply.
As can be seen from the above, seamless steel pipe has many functions nowadays. When choosing a particular type of product, it is important to consider its characteristics and performance.