6061 T6511 Extruded Aluminum Angle is by far the Most Robust out of all of the Aluminums. 6061 T6511 Aluminum possess good formability and corrosion resistance with a medium strength .Its most commonly used applications are for milling and turning ,drilling, and tapping Also known for its ease of welding Mig or Tig.6061 T6511 Aluminum is commonly used in automotive and tooling applications as well as some marine applications.6061 T6511 Aluminum Meets the American Society for Testing and Materials International ASTM B221