company news about What is a Drill Rod?

Drill pipe is a section of stainless steel pipe that is joined together to form the drill string. The drill string connects the drill rig at the surface to the drill bit at the tunnel face. It is used to provide rotational torque to the drill bit and to supply drilling fluid from the surface to the cutting surface.

Drill pipe is a round metal rod made of tool steel that is ground and polished to tight tolerances. It is usually supplied unhardened and is therefore easy to machine, making it an ideal product for making tooling.

Drill pipe is finished to very tight tolerances to ensure there are no defects, allowing the final product to withstand impact, resist wear, resist deformation, and maintain an edge at high temperatures. Tools made from drill pipe are particularly suitable for processing other materials.

Drill pipe is made by machining tool-grade steel into rods. The rod is precision ground to specific tolerances and then polished for a clean, smooth surface. The polishing process helps ensure that specific tolerances are maintained.

Drill pipe is often tempered before machining to reduce hardness and improve the steel's machinability. The tempering process involves heating the drill pipe until it glows red and then cooling or quenching it in water, oil or air depending on the grade of drill pipe. The rods are then coated with anti-rust oil for storage to ensure the polished surface does not discolor.