Pipe for aluminum alloy drilling rod of deep and ultra-deep wells and manufacturing method thereof

The invention discloses a pipe for an aluminum alloy drilling rod of deep and ultra-deep wells and a manufacturing method thereof, and belongs to the technical field of petroleum pipe manufacture. The pipe comprises, by weight, 4.8-5.8% of Cu, 1.2-1.8% of Mg, 1.0-1.2% of Mn, 0.05-0.20% of Ti, 0.5-0.6% of Zn, 0.001-0.01% of B, 0.02-0.05% of Yb and the balance Al and unavoidable impurities. Through Cu precipitation strengthening, Mn solid solution strengthening and grain refinement at a specific temperature, Zn and Mg precipitation strengthening and Yb-B-Ti-combined use grain refinement, the synergism effects of solid solution strengthening, precipitation strengthening and grain refinement are obtained. A pipe blank is casted and the ingot casting is subjected to homogenization, extrusion and solid solution, a pipe blank homogenization temperature is in a range of 480-505 DEG C, and a pipe blank extrusion temperature is in a range of 400-450 DEG C. The manufacturing method is free of heat treatment processes such as solid-solution quenching and long-term aging, can carry out direct natural aging treatment on the quenched pipe subjected to pre-deformation and can simplify production processes and reduce environmental pollution.