Electric-welded casing pipe

The source pipe for casing is an electric-welded straight-seam round pipe, which is manufactured in accordance with GOST 31446

The pipe of circular cross section is made only of rolled steel, and the seam is made by induction welding of high frequency currents (high frequency currents), type 1.

Couplings are manufactured in accordance with GOST 31446 with a coating.

Uraltrubprom manufactures threaded fuses for casing pipes and couplings. More details

Main characteristics:

• Smooth or threaded ends
• Local weld heat treatment
• Smooth-end casing pipes are supplied with corrosion protection and in a free state. The type of delivery is selected by the customer.
• Threaded casing pipes are delivered with screwed-in couplings and protectors, with corrosion protection.
• Couplings of the same type, same level of PSL (PSL-1) as casing.
• Type of pipe finish:
  • P - without thread;
  • SC - short triangular thread;
  • LC - long triangular thread;
  • BC - thread "buttress";
  • OTM - trapezoidal thread;
  • OTTG is a trapezoidal thread with a metal-to-metal seal assembly.