Difference between A192 hot expanded tube and A192 seamless tube
Definition and Basic Characteristics
A192 Seamless tube: has a hollow cross-section with no seams around it, usually made by piercing and hot rolling, cold rolling or cold drawing processes.
A192 Hot Expanded Tube: is a large diameter, thick-walled seamless steel tube, formed by heating and then extruding and expanding, suitable for large caliber requirements.