How is cold drawn seamless pipe made?
Cold drawn seamless pipe has a high strength to weight ratio and can be machined to provide a combination of desired properties.This type of tube has a variety of uses, especially where thick walls, specific steel alloys, or both are required. Specific applications include bushings, gaskets, bearings and other mechanical components in automobiles, trucks, aircraft and construction, agricultural and drilling equipment, and hydraulic cylinders. Cold drawn seamless pipes have good dimensional accuracy, surface quality, microstructural uniformity, machinability and high tensile properties. It is also suitable for post-processing such as carburizing, heat treatment, etc. M anufacturing P rocess Cold drawn s eamless tubes are produced from solid round billets by rotary piercing and then rolled in rolling mills that allow an extremely wide range of diameter/wall thickness ratios. The tube is then processed through a multi-pass downsizing mill and rotary classifier. Tube sections from the ho
