Casing steel pipe with diameter 245 mm, wall thickness 10 mm, strength group E (yield strength not less than 552 MPa), to GOST 632-80. Used for reinforcing production casing strings of medium- and deep-depth oil and gas wells. Connection — coupling with triangular or trapezoidal thread; on customer request — high-tightness premium connection. The pipe ends are heat-treated and phosphated to improve thread durability. Length 9.5-13 m.
Technical specifications
| Standard | 632-80 |
| Diameter (mm) | 245 |
| Wall thickness (mm) | 10 |
| Steel grade | Grade E |
| Length (m) | 9.5-13 |
| Coating | thread phosphating; coupling |