Are you interested in the use of drill pipes? Supplier Evek GmbH offers to buy drill pipe of domestic and foreign production at an affordable price in a wide range. We provide delivery of products to any point of the continent. The price is optimum.

Classification

Drill pipes are used in boreholes, where they are used to transmit torque and create axial load for drilling tools. At the same time, drill pipes are used to supply compressed air and flushing fluid to a wellbore for cleaning the interior of a well.

Conventional drill pipe.

It is a tubing, made in one piece, with a circular cross-section. It is made of steel (less frequently - of aluminum alloys). The wall thickness of conventional drill pipes is between 4.75 and 11 mm. Conventional drill pipes for connection to each other and to the elements of the pipeline fittings are provided with special tool joints on their ends that have large conical thread. In order to increase the strength, the ends of such pipes are thickened.

Weighted drill pipe

As opposed to conventional weighted drill pipe, the wall of weighted drill pipe is 16 ... 50 mm or thicker. The connection of weighted drill pipes is also carried out using threads. The use of weighted drill pipes makes it possible to increase the axial load on the drilling tool and increase the rigidity of the bottom part of the drill string, which is subjected to compressive stresses.

Lead Drill Pipe

The flagship drill pipe is manufactured with a polygonal cross section. It is installed in the upper part of the drill string to transmit the torque from the drill rig mechanism. The drive pipes are manufactured with 155x155, 140x140 and 112x112 mm sides. The diameter of the inner bore of the pipe is within 74.85...100 mm. The length of drill pipes is from 12 to 14 m. The drill pipes are manufactured with threaded ends, with inward and outward thrusting; with welded ends (without thrusting and with thrusting outward).

Materials and properties of drill pipe

General purpose drill pipe is manufactured of 36G2S structural alloy steel with the following chemical composition:

• carbon ... 0.32 ... 0.40;
• manganese... 1.5...1.8;
• silicon... 0.4... 0.7;
• chromium... no more than 0.3
• nickel... no more than 0.4
• sulfur ... not more than 0.045;
• phosphorus ... not more than 0.040.

Hardened pipe from steel 45 is produced according to GOST 1050. The supplier Evek GmbH offers to buy drill pipes of domestic and foreign production at a reasonable price in a wide range. Provide product delivery anywhere in the continent. The price is optimal.

Mechanical characteristics

Welded locks should be made of 40KhN steel, the mechanical properties of which after volume heat treatment should be at least the following:

- tensile strength, MPa (^kgf/mm2) 882 (90)

- yield strength, MPa (^kgf/mm2) 686 (70)

- Elongation % 15

- percentage contraction, % 50

- Tensile strength KCU, at 20°C, ^Nm/cm2 (kgf x ^m/cm2) 118 (12)

- material hardness, HRC 26

Welded locks must be chemically hardened. To ensure the average MTBF of over 6400 hours the surface of locks is additionally hardened with wear-resistant material.

Buy. Supplier, price.

Are you interested in a drill pipe application? Supplier Evek GmbH offers to buy drill pipes of domestic and foreign production at an affordable price in a wide range. Provide product delivery anywhere in the continent. The price is optimal. We invite to partner cooperation.