Friction welding drill rod,drill pipe for drill rig for rock drilling

Friction welding drill rod,drill pipe for drill rig for rock drilling 1.Product description Friction welding drill pipe (subsurface drill pipe, external horizontal drill pipe) is mainly used for drilling and rock breaking, anchoring drilling, geothermal air conditioning hole, well drilling, etc. Tube body adopts famous domestic large-scale iron and steel enterprise production materials, adopted in the thickening process on both ends of the pipe body, has carried on the tempering process after friction welding, pipe joint and tempering heat treatment after rough machining, finish machining after surface nitriding treatment, effective to eliminate the thread gluing failure probability, burst fracture, diameter, etc, more wear-resisting, easy to remove.All adopt the precise import numerical control lathe, the custom-made molding tool to process the thread, all the threads are equipped with the thread gauge that conforms to the international standard, so the production drill pipe quality is stable, reliable, the use period is greatly extended. We can not only produce API standard threaded drill pipes of different materials, lengths, diameters and wall thicknesses, but also customize drill pipes according to customers' requirements of materials, lengths, wall thicknesses and threads. 2.Friction welding drill rod parameters Drill rod diameter Screw thread standard Grade of steel Rod body wall thickness Thickening form Drill rod length inch mm mm mm 3 76 2-3/8"REG R780、G105、S135 6、8 Internal upset 1000--5000 3 1/2 89 2 3/8’’IF NC26 R780、G105、S135 6.5、8 Internal upset 1000--5000 4 102 2 7/8’’IF NC31 R780、G105、S135 8、9.19 Internal upset 1000--5000 4 1/4 108 2 7/8’’IF NC31 R780、G105、S135 8、9.19 Internal upset 1000--5000 4 1/2 114 2 7/8’’IF NC31 R780、G105、S135 8、10 Internal upset 1500--6000 5 127 3 1/2’’IF NC38 R780、G105、S135 8、10、12 Internal upset 1500--6000