Packaged supplies of rolled steel products with reliable service

Pipe Company «7 Diameters» - east european pipe company with 3D quality control, 100% order pickers, different methods of delivery to any destination point

Steel electric-welded pipes of large diameter from reliable producers


In the rolled steel market and steel pipe manufacturing

Own Production

Electric-welded steel pipes d630mm – d1420mm made of structural and alloyed steels (general-purpose and trunk). Externally and internally insulated pipes can be supplied


We supply all types of alloy and high quality carbon steel rolled steel products. We are committed to the principles of reliability, honesty and mutually beneficial cooperation when interacting with our partners

ISO 9001-2015

ISO 9001 of quality management systems standards deals with the requirements that organizations wishing to meet the standard must fulfill


Thanks to streamlined production technology quickly fulfill orders in a short time on a large number of facilities around the world

pipe company

The Geography of Deliveries

From the Crimea to Siberia in Russia, Azerbaijan, Kazakhstan and other CIS countries, Asia, South America and Africa.

High quality of the products and services supplied, accurate and timely manner of supplies are guaranteed by a careful approach to selection of suppliers and partners in each activity area.

Our Story

Over 17 years of experience in the rolled steel and LDP market: from design and production launch from scratch to creating an efficient production and logistics system of supplies and convenient service.

Today, this fusion of competences works for those who stand at the origins of creation of vital trunk pipelines, oil and gas pipelines, transport infrastructure, industrial facilities and residential estates. The main goal and result of the Pipe Company “7 Diameters” work is timely facilities commissioning and partners success.

A wide range of products, high quality and reliability of supplies, worldwide delivery, individual approach to customers, competitive prices, highly skilled personnel – all this enables us to meet the needs of our Buyers in full.

Our products

We inform you that through the our company you can buy the following products.
Note: Final sizes and specifications to be agreed upon while contract execution.

Ø 57 – 1420 mm Electric longitudinal welded pipes

Electric-welded steel pipes made of structural and alloyed steels. Used for arrangement of trunk, process and public supply pipelines.

More info
Ø 57 - 426 mm Water and gas mains pipes

Seamless pipes used in oil and gas industry, mechanical engineering and municipal

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Square and rectangular Electric welded galvanized pipes

Shaped pipes used in erection of steel structures, as well as for parts and components manufacturing in mechanical engineering.

More info
Ø 10 - 1020 mm Shaped steel pipes

Steel wheels and forgings made from steel of different composition and quality. Widely used for the manufacture of various parts and in construction.

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by customers request Hot Rolled Beams

Profile and sheet rolled products made of structural and alloyed steels: metal sheets, channel beam, angle steel, welded mesh and other rolled metal products on request.

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by customers request Long products

Titanium and aluminum rolled products: pipes, sheets, forgings, circles, wire. Used in construction, mechanical engineering, automotive and space industries.

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Trusted by some of amazing companies

In collaboration with partners, we adhere to the principles of reliability, honesty and mutually beneficial cooperation.

AETP logo Tempo logo ECNK logo Magnitogorsk logo Metinvest logo SeverSteel logo Belaruskali logo Gazprom logo


Where are pipes used.

  • Bovanenkovo gas field


    Bovanenkovo gas field
  • Creamea Thermal power stations


    Creamea Thermal power station
  • Moscow Joint-Stock Company


    Moscow Joint-Stock Company
  • Western Siberia Thermal power stations

    by Tumen energo-systems

    Western Siberia Thermal power stations
  • BelarusKali Joint Stock Company


    BelarusKali Joint Stock Company
  • Astana engineering communication


    Astana engineering communication
  • Diamond mining companies


    ALROSA - group of Diamond mining companies
  • Moscow Third and Fourth Ring Roads


    Moscow Third Ring Road

What saying about us

News feed, Press and Projects, Testimonials.

Certificates of Conformity

Certificates of Conformity
Certificates of Conformity
Certificates of Conformity
Certificates of Conformity

Drop us a line

Contact us


123060, 34 Berzarina str., Moscow, Russian Federation

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Pipe Company «7 Diameters»