Understanding the Aluminum Temper Designation System - NISTاستكشف
الويبshaping process, usually extrusion, and then, without any intermediate cold work, is artificially aged. The artificial aging consists of holding at a sufficiently high temperature and sufficiently long time (e.g., 8 h at 175 °C, or 350 °F, or 24 h at 120 °C, or 250 °F) to permit