Hot Sale API 2 3/8'' REG Standard 76 89 102 Mm Water Well Rock Dth Drill Rod

DTH drill pipes are widely used in mines, water wells, geothermal, petroleum and other types of DTH rigs. High quality carbon steel ensures the close combination of friction welding process and joint. According to different application, different diameters of drill tubes are needed, basically, smaller DTH hammers need smaller DTH drill tubes, vice versa.

DTH drill pipes play a significant role in all DTH drilling, regardless type of rock, hole depth or drill rig. DTH drill pipe is mainly used in the drilling blasting hole, guardrail hole, mountain reinforcement, anchoring and other engineering holes in mines, quarries, highways, railways and so on.

• Pipe body: cold draw seamless pipe for accurate size and good centralizer
• Thread connector: Heat and Nitrogen treatment for durability and easier loading/unloading
• Friction welding technology
• OD: 89mm (3.5'' inch) thread drill pipe
• Connection: 121mm
• Material: R780/E75/N80
• Thread: NC38
• Wall thickness: 9.5mm/10mm
• Yield/Tensile strength: Min 517Mpa/Min 689Mpa
• Suitable for water well, geothermal well, gas well
• Safe drilling depth: Within 1,500 meters
• Tool joint: 35CrMo/40Cr
• Length: 4.5meters or as per requirement

• Optimal combination of drill pipe materials with improved heat treatment performance
• High mechanical properties and abrasion resistance for longer service life
• Light weight and good flexibility
• Customizable drilling fluid channel design to reduce hydraulic loss
• Superior welding strength exceeding base material properties
• Improved bending resistance and flexibility through tempering and heat treatment