Square and rectangular hollow sections:

Hollow sections are produced as per Russian standards GOST 8639-82, GOST 8645-68; GOST 8644-68;  ТУ 47-105-172-08.

Steel grade St3sp (Equivalent to EN -  S235, S235J2G3, S235JRG2, equivalent to DIN -RSt 37-2, RSt 37-3, S235JRG2, St 37-2, St 37-3, St 37-3 G).

Electro-welded pipes and pipes for gas and water conveyance

Steel grade GOST 380-94; GOST 1050-88.

Pipes are produced as per GOST  3262-75,  GOST 10704-91;  TY 47-105-172-08.

APPLICATION:

Square and rectangular hollow sections

used in fabrication of furniture, prefabricated Houses, bus and other automobile bodies, used in constructions and making of structures, fencing, pillars and gate etc.

Advantages of using square and rectangular hollow sections are the following:

• Decrease of specific amount of metal per structure (e.g., using as a column saves 25 % of metal  in comparison of flange beam);
• Speed increase and assembly convenience  of buildings;
• Corrosion resistance of metal constructions;
• Conformity to the sanitary-hygienic standards;
•  Fire protection and conformity to fire-hazard regulations;
• Alternative to flange beam, rolled-steel channel, angle.
• Possibility of application the wide assortment of design for different constructions.

Electro-welded pipes and pipes for gas and water conveyance

used for construction of pipelines, for water pipe-line, gas pipe-line, heating system, and construction structures.