Electric-welded pipes

Application and types of electric welded pipes

• There are several classes of welded pipes :
• Class 1 pipe is used for transporting gas, liquids, arranging heating systems and erecting building structures. To increase efficiency and reduce losses during the construction of heating pipelines, insulation of pipelines is installed;
• Class 2 pipe is in demand in the petrochemical industry;
• Grade 3 pipes are used in the chemical, food and nuclear industries. The most popular product of this class are stainless steel pipes bst2kp, which are resistant to corrosion and high temperatures;
• Class 4 pipe is designed for oil exploration enterprises;
• Grades 5 and 6 of electric-welded pipes are used in various branches of engineering.

In addition, due to their low cost, electric-welded pipes made of corrosion-resistant steel are widely used in many industries and construction. GOST 1070491 products are used for the manufacture of various structures and fences. And longitudinal gas and water pipes GOST 10705 80 are most in demand when laying pipelines for various purposes.

A metal pipe is welded using electric welding from specially prepared steel strips. Four groups of pipes (A, B, C and D) are distinguished depending on the mechanical characteristics and chemical composition. They can thick-walled and thin-walled. In addition, the electric-welded pipe can be formed using a continuous spiral or straight seam.

Depending on the diameter of the welded pipe, dimensional and non-dimensional rolling are distinguished. With a diameter of up to 70 mm, the length of the pipes is 5 to 9 meters. Products with a diameter of up to 219 mm - from 6 to 9 meters, and over 219 mm - from 10 to 12 meters.