Seamless steel pipe for diamond core drilling (YB/T5052-1993)
Seamless steel pipe is a steel pipe without welding seam and is most commonly used for diamond core drilling. YB/T5052-1993 is a Chinese national standard established in 1993 and converted into laws and regulations in 2009. It is a kind of seamless steel pipe with a diameter of 83-114mm which is used for diamond core drilling.
The standard thereof stipulates the technical details of the seamless steel pipe, including indexes and tolerance. The external surface, deviation of each wall thickness of the seamless steel pipe, and the hydraulic test pressure are all in line with the national standards of the People’s Republic of China. It is mainly used for diamond core drilling and serves a great purpose for drilling jobs. It has advantages such as stable product quality and low failure rate and is easy to maintain.
As diamond core drilling works require very steady speed, the seamless steel pipe’s cross-sectional shape and its tolerance are very important. If a seamless steel pipe is not used for the drilling works, the reciprocating motion of uneven pipe wall section can cause certain vibration and damage the efficiency of the drilling works. In comparison, the seamless steel pipe can fulfill a much more effective drilling work.
Moreover, the seamless steel pipe used in diamond core drilling works has an internal and external rust-proof treatment. This can prevent the steel pipe from corrosion and rust, which cause destruction to the steel pipe and affect the stability of the drilling works. The seamless steel pipe with rust-proof treatment is also harder and stronger compared to one without the rust-proof treatment.
In addition, the opening of the seamless steel pipe is equipped with plastic lining, which is advantageous to when the mud agitates during the drilling work. Plastic linings are also advantageous to air and water pressure discharge and can reduce the wear on the steel pipes.
Seamless steel pipes produced according to the Chinese national standard YB/T5052-1993 are of great help for diamond core drilling as they are strong and stable, as well as being resistant to corrosion and having low failure rates. Moreover, plastic linings for the opening of the pipes can reduce steel pipe wear and assist with mud circulation workings carried out during the diamond core drilling works.
