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140.00 грн
/kg

Seamless steel pipe 40x5mm GOST 8734 st 20

Product Code: 8358
In Stock
140.00 грн
/kg
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Seamless steel pipe 40x5mm GOST 8734 st 20 is one of the types of rolled metal, widely in demand in construction and when laying communications. The products have no joints, including a welded seam, are completely sealed and are distinguished by the highest strength characteristics. Such products are able to withstand high pressure, including hydraulic, are reliable, resistant to water hammer.

Pipes of this category are often used in the chemical, mining and processing industries, in construction, when laying pipelines, and in mechanical engineering.

 

Thick-walled, large-section seamless tubing is used to transport liquids and gases under high pressure. Pipes with a smaller wall thickness are more often used for the construction of television and radio poles.


For the production of cold-rolled pipes of a seamless type, structural steels (of various degrees of strength) are used. Rolled steel manufacturing technology includes 2 stages:

calibration of the blank sleeve on a special rolling mill (at this stage, the main characteristics of the products are established - wall thickness and section size);

the billet is processed at a cold rolling mill, where it is reduced to those parameters that are provided by GOST.

Cold rolled seamless pipes are available in various capacities. The choice of rental should be made taking into account this characteristic and the purpose of the purchase.

ADVANTAGES OF SEAMLESS PIPES:

high indicators of reliability and elasticity;

resistance to mechanical stress, pressure;

exposure to various types of processing;

good weldability;

high level of thermal conductivity.


       You can buy Seamless steel pipe 40x5mm GOST 8734 st 20 from us at the best price in Ukraine. A wide range of products allows us to quickly and efficiently fulfill any order, helping to complete any construction work on time.

The main thing
Diameter
10-57мм
Material
Steel
View by manufacturing method
seamless, welded
Chemical composition
quality structural carbon steel
Type by purpose
They are used to transport steam, gas and other substances in the defense industry, shipbuilding and railcar construction and in many heavy industries. The products are used for the installation of gas and water pipelines, chimneys and ventilation shafts. Pipes are used to lay protective circuits for electrical wiring and other communications. They are quickly used for the installation of load-bearing structures of various buildings, as structural elements of fences, fences, gazebos, benches, and the creation of art objects. Pipes are in wide demand in private and commercial construction, urban planning and the arrangement of public spaces.
A type
Seamless steel pipe GOST 8734
Additional services
Cutting is carried out according to the client's order and packaging of products according to the client's orderSent by any carriers in Ukraine
The country of manufacture
Ukraine

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Questions & Answers

Steel grades of cold-rolled round pipes

Carbon steels (GOST 380): St4sp, St4ps, St3sp, St3ps, St3kp, St2sp, St2ps.

High-quality carbon steels (GOST 1050): 50, 45, 40, 35, 30, 25, 20, 15, 10, 08.

Structural alloy steels (GOST 4543): 20KhM, 35KhM, 30KhN2MFA, 38KhN3MA, 40KhN2MA, 40KhN, 25KhGT, 18KhGT, 40KhGSA, 35KhGSA, 30KhGSA, 20KhG, 45Kh, 40Kh, 35Kh, 30Kh, 20Kh, 15Kh.

Low-alloy steels (GOST 19281): 15GF, 14G2, 17G1SU, 17G1S, 10G2S1, 09G2S.

Stainless steels (GOST 5632): 40Kh13, 30Kh13, 20Kh13, 12Kh13, 03Kh17N14M3, 10Kh17N13M2T, 08Kh18N10T, 12Kh18N10T, 08Kh18N10.

Heat-resistant and heat-resistant steels: 20Kh1M1F1TR, 15Kh1M1F, 15Kh5M, 12Kh1MF.

Standards for cold rolled round tubes

Main GOST standards for cold-rolled pipes

GOST 8733-74 — Seamless cold-formed steel pipes. Technical requirements;

GOST 8734-75 — Seamless cold-formed steel pipes. Assortment.

GOST for cold-formed stainless steel pipes

GOST 9940-81 — Seamless hot-formed and cold-formed stainless steel pipes;

GOST 9941-81 — Seamless cold-formed pipes made of corrosion-resistant steel.

GOST for special cold-formed pipes

GOST 550-75 — Cold-formed pipes for boilers and pipelines;

GOST 11017-80 — Cold-formed pipes for mechanical engineering;

GOST 9567-75 — Cold-formed precision steel pipes.

GOST for Pipe Materials

GOST 5632-2014 — Stainless and Heat-Resistant Steels;

GOST 19281-2014 — Low-Alloy Steels;

GOST 4543-2016 — Alloyed Structural Steels;

GOST 1050-2013 — High-Quality Carbon Steels.

GOST for Inspection, Testing, and Delivery

GOST 7566-2018 — Metal Products. General Delivery Requirements;

GOST 3728-78 — Pipe Bending Test;

GOST 8695-75 — Pipe Flattening Test;

GOST 10006-80 — Pipe Tensile Test;

GOST 3845-75 — Pipe Hydraulic Pressure Test;

GOST 8731-74 — Seamless Pipes. General Specifications.

International Standards

ASTM A213 — Stainless and Alloy Pipes;

ASTM A179 — Cold-Drawn Heat Exchanger Tubes;

ASTM A106 — Seamless Pipes (Including Cold-Formed);

EN 10305-2 — Cold-Drawn Welded Pipes;

EN 10305-1 — Cold-Drawn Seamless Pipes.

Table for calculating the weight of 1 meter of cold-rolled round pipes (kilograms)
Diameter (mm) Thickness 1,0 mm Thickness 1,5 mm Thickness 2,0 mm Thickness 3,0 mm
10 0,222 0,311 0,385 -
12 0,271 0,386 0,484 -
14 0,321 0,46 0,583 -
16 0,37 0,535 0,682 -
18 0,419 0,61 0,781 1,05
20 0,469 0,684 0,88 1,2
22 0,518 0,759 0,979 1,35
25 0,593 0,871 1,13 1,57
28 0,667 0,983 1,28 1,8
30 0,717 1,06 1,38 1,95
32 0,767 1,13 1,48 2,1
38 0,916 1,35 1,78 2,55
42 1,02 1,5 1,98 2,85
45 1,09 1,61 2,13 3,07
50 1,21 1,8 2,37 3,45
57 - 2,06 2,71 3,96
60 - 2,17 2,86 4,19
76 - 2,76 3,65 5,37