Drawn Over Mandrel (DOM)

Drawn Over Mandrel (DOM) refers to high-strength, electrically-welded tubing that has been further processed by cold drawing through dies and over mandrels to improve its uniformity, mechanical properties and surface finish. To a great extent, DOM tubing is customized to each specific application. This provides further advantages, particularly to high-volume manufacturers. They include a wider range of sizes and tighter dimensional tolerances that allow the tubing to be used in mechanical parts with little or no metal removal or machining. Because of its many advantages, DOM is the material of choice in many of the most demanding applications for tubing, including: hydraulic cylinders, auto and truck components, recreational vehicles and others.