Product Information: 6061 is one of the most common alloys of aluminum in use today. It combines workabilty, weldability, and corrosion resistance into one alloy with medium strength. 6061-T6511 Aluminum flat bars are extruded to produce dimensional sizes on thickness and width. Material: Aluminum Shape: Flat Bar Alloy: 6061 Temper: T6511 Thickness: 0.500 inch Width: 0.625 inches Length: 48 inches Finish: Mill (Unpolished) Quantity in Package: 1 piece(s) Specifications: ASTM B221, AMS QQ-A-200/8 Tolerances: Thickness: (+/-0.009) |Width: (+/-0.009) | Length: (-0.063/+0.999) MTR Available: Shipping: To offer the fastest and most reliable shipping we ship via UPS only. We are not able to deliver to PO boxes.We offer FREE UPS Ground Shipping. You can also upgrade to UPS 2nd Day Air and UPS Next Day Air Saver if needed.