Non-magnetic drill collars, as crucial tools in oil drilling, primarily function to apply drilling pressure to the drill bit and ensure necessary strength under compression conditions. The choice of material directly impacts the performance and service life of the drill collar. Typically, non-magnetic drill collars are made of low-carbon, high-chromium-manganese alloy steel. This material, after undergoing rigorous chemical composition and refining processes, exhibits excellent mechanical properties and low magnetic permeability.
