The hdd drill pipe adopts the shot blast process to improve the fatigue strength and
corrosion resistance.
The threads are nitrided to improve the wear resistance of the threads and extend the life of the hdd drill pipe.
All materials are supplied by Shanghai Baosteel, in strict accordance with Non-destructive test standard class 2 standard The harmful elements such as P, S harmful elements are effectively controlled to ensure the quality of raw materials for hdd drill pipes.
In Beijing TDS, each of the hdd drill pipe is made of a closed step furnace to heat the line, and the uniform tempering cable structure 1s obtained by quenching and high temperature tempering.
TDS HDD drill pipe was manufactured with advance material and automatic process to achieve best service life and reliability. Special heat treatment in tool joint resulted in harder surface and
longer service life. All of the thread type are available , it included the most rig model in the market,such as DW, Vermeer, Gooden, XCMG,…and so on.