Description
One of the most widely used types of rolled steel is a rectangular steel profile pipe. It has a rectangular cross-section, and is produced by welding a steel sheet or molding a steel blank according to GOST 8645-68, which defines the regulatory requirements for the entire range of pipes of this cross-section. The main material for production is carbon and alloy steel 08kp, St2sp, St2ps, St4sp, St4ps, 10, 10ps, 20, 35. The manufacturing methods used are cold or hot deformation.

Main types of products
By the production method, rectangular steel pipes are classified as:

hot-rolled;
cold-rolled;
welded.
By the type of surface treatment, rectangular profile pipes are divided into heat-treated (seam and entire plane) and untreated, galvanized and non-galvanized. According to physical and operational characteristics, rectangular profile pipes are divided into four categories:

by mechanical properties;

by chemical properties;

by mechanical properties and chemical composition;

by hydraulic pressure.

By length, rectangular steel profile pipes can be measured, non-measured and multiple of measured. Low weight and four stiffening ribs provide the rectangular profile pipe with high reliability, resistance to loads, mechanical strength, including bending, and a long service life.

Scope
Rectangular profile pipes are widely used in construction and in the creation of metal structures. They are used in the construction of large shopping malls, stadiums, sports facilities, warehouses, exhibition pavilions, industrial workshops, overpasses, crossings, bridges, transmission line supports, towers, cranes. They are very effective in the construction of high-rise buildings and structures with large spans. Advantages of rectangular steel pipes when used in the construction industry:

significant reduction in the metal content of metal structures;
increase in installation speed;
treatment with special compounds (disinfection, fire protection);
equivalent replacement of the main types of rolled metal;
a wide variety of design and artistic developments;
the ability to create complex and reliable structures using electric welding.
Professional solutions
You can buy rectangular profile pipes in Yekaterinburg from the Metallinvest company, which has been selling high-quality rolled products from the best manufacturers since 1991. An individual approach to each client, high speed and accuracy of order processing, a large assortment of rolled products have ensured the company a reputation as a serious and reputable supplier. The Metallinvest company strives for long-term cooperation, therefore it sets a minimum price per meter of rolled product for its clients.

For the convenience of shipping products to the customer and reducing delivery times, the company uses a large number of warehouses located in 14 cities of Russia, as well as its own fleet of vehicles. The company values ​​every client, both large and very small, so sales from one unit of products are possible. A flexible individual discount system allows organizations with any financial turnover to purchase rolled metal products. A personal manager, trained at a professional level and possessing all the information on the range of rolled metal products, works with all customers.